dcsimg

Broad-scale Impacts of Plant Response to Fire ( anglais )

fourni par Fire Effects Information System Plants
More info for the term: prescribed fire

Hamilton's Research Papers (Hamilton 2006a, Hamilton 2006b) provide
information on prescribed fire and postfire response of plant species,
including devil's-club, that was not available when this species review
was originally written.
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Common Names ( anglais )

fourni par Fire Effects Information System Plants
devil's-club
devil's club
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Cover Value ( anglais )

fourni par Fire Effects Information System Plants
More info for the term: cover

Devil's-club provides hiding, escape, and thermal cover for various
birds, rodents, and the vagrant shrew [31].
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Description ( anglais )

fourni par Fire Effects Information System Plants
More info for the terms: drupe, fruit, shrub

Devil's-club is a native, erect to slightly spreading, deciduous shrub
from 3.3 to 10 feet (1-3 m) in height.  It is sparsely branched with
sharp, dense prickles on stems and prominent leaf veins [24,30,48].  The
fruit is a drupe with two to three seeds [23,48].  Cooper and others
[11] noted that this species is rhizotomous; other researchers have yet
to confirm this.  Devil's-club is drought intolerant [10].
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Distribution ( anglais )

fourni par Fire Effects Information System Plants
Devil's-club is distributed from south-central Alaska south along the
Pacific Coast and the western slope of the Cascade Range to southern
Oregon and east to southwestern Yukon Territory, Idaho, and western
Montana.  Disjunct populations occur on several islands of northern Lake
Superior, including Isle Royale and Passage Island, Michigan, and
Porphyry and Slate islands, Ontario [30,45,46].  Some authorities [23]
extend its distribution to eastern Asia.  Voss [46], however, recognized
the Asian plants as a distinct species, Oplopanax elatus (Nakai) Nakai.
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Fire Ecology ( anglais )

fourni par Fire Effects Information System Plants
More info for the terms: fire regime, root crown, stand-replacing fire, wildfire

Sites where devil's-club occurs burn infrequently.  Wildfire is uncommon
in various forest-devil's-club types of southeastern Alaska [28].
Typically, the moist ravines and streamside areas serve as a fire break
to low- and moderate-severity ground fires.  The return interval for
such fires ranges from 50 to 100 years in the western redcedar/devil's
club type of western Montana.  Less often, this type undergoes severe,
stand-replacing fire, regressing the site to pioneer conditions.
Stand-replacing fires in the western redcedar/devil's-club type of
western Montana have historically occurred at intervals ranging from 150
to more than 500 years [13].

Devil's-club adaptations to fire are not well documented.  It may sprout
from the root crown [18,42].  Sprouting from rhizomes may also occur [11].

FIRE REGIMES :
Find fire regime information for the plant communities in which this
species may occur by entering the species name in the FEIS home page under
"Find FIRE REGIMES".
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Fire Management Considerations ( anglais )

fourni par Fire Effects Information System Plants
Overall fire potential is rated as low in western redcedar/devil's-club
habitat types of western Montana [17].
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Growth Form (according to Raunkiær Life-form classification) ( anglais )

fourni par Fire Effects Information System Plants
More info on this topic.

More info for the term: phanerophyte

  
   Phanerophyte
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Habitat characteristics ( anglais )

fourni par Fire Effects Information System Plants
Devil's-club is a wet-site indicator [38].  It grows on moderately
well-drained to poorly drained, shaded sites.  It is commonly found near
springs and streams and in drainage, seepage, and wet bottom areas
[5,8,27].  It occurs on variable aspects [9], growing in soils that are
sandy, loamy, or silty in texture.  Devil's-club-supporting soils are
sometimes skeletal.  Soils are derived from quartzite or from fluvial,
colluvial, glaciolacustrine, or morainal deposits [11,6,27].  Soil pH is
acid.  It ranges from 4.5 to 6.0 in the western redcedar/devil's-club
type of northern Idaho [11], and was measured at 3.8 in the Sitka alder
(Alnus viridis spp. sinuata)/devil's-club type of southern Alaska [39].
Soil nutrient levels are medium to very rich [24].  Climate varies from
maritime, submarine, and continental types [24].  Elevational ranges for
devil's-club in several locations are as follows:

                             feet             meters

northwestern Montana     3,900-5,000     1,189-1,524 [8]
Oregon                   1,300-4,600       396-1,402 [9,25]
northern Idaho           1,500-4,900       460-1,495 [11]
southeastern Alaska          0-1,700         0-  518 [14,47]
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Habitat: Cover Types ( anglais )

fourni par Fire Effects Information System Plants
More info on this topic.

This species is known to occur in association with the following cover types (as classified by the Society of American Foresters):

   201  White spruce
   202  White spruce - paper birch
   203  Balsam poplar
   205  Mountain hemlock
   206  Engelmann spruce - subalpine fir
   221  Red alder
   223  Sitka spruce
   224  Western hemlock
   225  Western hemlock - Sitka spruce
   226  Coastal true fir - hemlock
   227  Western redcedar - western hemlock
   228  Western redcedar
   252  Paper birch
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Habitat: Ecosystem ( anglais )

fourni par Fire Effects Information System Plants
More info on this topic.

This species is known to occur in the following ecosystem types (as named by the U.S. Forest Service in their Forest and Range Ecosystem [FRES] Type classification):

   FRES23  Fir - spruce
   FRES24  Hemlock - Sitka spruce
   FRES28  Western hardwoods
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Habitat: Plant Associations ( anglais )

fourni par Fire Effects Information System Plants
More info on this topic.

This species is known to occur in association with the following plant community types (as classified by Küchler 1964):

More info for the term: forest

   K001  Spruce - cedar - hemlock forest
   K002  Cedar - hemlock - Douglas-fir forest
   K004  Fir - hemlock forest
   K025  Alder - ash forest
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Immediate Effect of Fire ( anglais )

fourni par Fire Effects Information System Plants
More info for the terms: fire severity, severity

Devil's-club is susceptible to fire-kill [18], but its susceptibility by
class of fire severity is unknown.
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Importance to Livestock and Wildlife ( anglais )

fourni par Fire Effects Information System Plants
More info for the term: cover

Devil's-club is not preferred by browsing animals, probably because of
its prickly leaves and stems.  Black-tailed deer, white-tailed deer, and
elk utilize it lightly in spring and summer [29,45]; in one study, it
comprised an average of 3.4 percent of the summer diet of Roosevelt elk
at widely distributed sites on the Pacific Northwest Coast [32].  Moose
on Isle Royale, Michigan do not browse it [46].

Devil's-club growing on banks of stream channels provides shade cover
for salmonoid fishes and their eggs.  Bear prefer such areas because of
the readily available sources of fish and devil's-club berries [14].
Grizzly and black bear also consume devil's-club seeds, leaves, and
stems [4,26,33,37].
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Key Plant Community Associations ( anglais )

fourni par Fire Effects Information System Plants
More info for the terms: association, bog, forest, herbaceous, selection, shrub, taiga, tree

Devil's-club is a dominant component of understories of various Pacific
Northwest and western boreal forests where moist to wet soil conditions
prevail.  Devil's-club is an indicator of numerous habitat types; some
commonly occurring ones are western redcedar (Thuja plicata)/devil's
club, western hemlock (Tsuga heterophylla)/devil's-club, Sitka spruce
(Picea sitchensis)-western hemlock/devil's-club, subalpine fir (Abies
lasiocarpa)/devil's-club, and Pacific silver fir (A. amabilis)/devil's
club [2,3,8,9].  Understories of various forest/devil's-club types are
sometimes nearly pure, dense stands of devil's-club.  Other understories
dominated by devil's-club, however, are species rich, involving mixed
shrub, shrub-fern, or shrub-forb associations [21,27].

A comprehensive list of publications naming devil's-club as a dominant
or indicator species would be prohibitively long.  A geographically
representative selection of such publications is listed below:

Old-growth forests of the Canadian Rocky Mountain national parks [1]
Forest types of the North Cascades National Park Service Complex [2]
Classification and management of riparian and wetland sites in
   northwestern Montana [8]
Plant associations and management guide for the Pacific silver fir zone
   and Gifford Pinchot National Forest [9]
Forest habitat types of northern Idaho: a second approximation [11]
Preliminary forest plant association management guide: Ketchikan Area,
   Tongass National Forest [14]
Classification, description, and dynamics of plant communities after
   fire in the taiga of interior Alaska [19]

Devil's-club tree associates not previously mentioned include noble fir
(Abies procera), grand fir (A. grandis), Alaska-cedar (Chamaecyparis
nootkatensis), Douglas-fir (Pseudotsuga menziesii), western white pine
(Pinus monticola), lodgepole pine (P. contorta varieties latifolia and
murrayana), shore pine (P. c. var. contorta), bigleaf maple (Acer
macrophyllum), quaking aspen (Populus tremuloides), and black cottonwood
(P. trichocarpa) [12,15,38,39].

Shrub associates are Alaska blueberry (Vaccinium alaskaense), ovalleaf
huckleberry (V. ovalifolium), evergreen huckleberry (V. ovatum), bog
blueberry (V. uliginosum), salmonberry (Rubus spectabilis), Rocky
Mountain maple (Acer circinatum), red-osier dogwood (Cornus sericea),
prickly currant (Ribes lacustre), and Oregon-grape (Mahonia nervosa)
[14,15,19,38].

Herbaceous associates of devil's-club include queencup beadlily
(Clintonia uniflora), trefoil foamflower (Tiarella trifoliata), starry
false-Solomon's-seal (Smilacina stellata), northern bedstraw (Galium
boreale), softleaved sedge (Carex disperma), woolly sedge (C.
laeviculmis), and coast sedge (C. obnupta) [8,38].  Other common
associates are wood horsetail (Equistum sylvaticum), ladyfern (Athyrium
filixfemina), oak-fern (Gymnocarpium dryopteris), mountain woodfern
(Dryopteris austriaca), and mosses (Mnium spp.) [8,15,27,38].
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Life Form ( anglais )

fourni par Fire Effects Information System Plants
More info for the term: shrub

Shrub
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Nutritional Value ( anglais )

fourni par Fire Effects Information System Plants
Mean value of in-vitro dry-matter digestibility of devil's-club for
white-tailed deer is 73.3 percent for leaves and 53.7 percent for stems.
Percentage composition of macro- and micronutrients in devil's-club
leaves and stems are available [29].
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Occurrence in North America ( anglais )

fourni par Fire Effects Information System Plants
     AK  ID  MI  MT  OR  WA  BC  ON  YT
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Other uses and values ( anglais )

fourni par Fire Effects Information System Plants
Devil's-club is planted as an ornamental [34,45].
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Phenology ( anglais )

fourni par Fire Effects Information System Plants
More info on this topic.

Devil's-club flowers in late spring to midsummer, depending upon
location.  Plants in southeastern Alaska bloom in June [45], while
plants on the Lake Superior islands bloom in mid-July.  Fruits ripen
approximately 4 weeks after flowering and persist over winter [46].
Leaves are dropped within a few days of the first fall frost.  In the
Cascade Range of Oregon, leaf abscission occurs in October or November
[10].
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Plant Response to Fire ( anglais )

fourni par Fire Effects Information System Plants
More info for the terms: fire intensity, forest, frequency, seed, stand-replacing fire

Postfire recovery of understory species, presumably including devil's
club, in forest/devil's-club types of British Columbia is more rapid
than in other forest types.  Researchers credit this to the generally
lower fire intensity.  Devil's-club frequency at widely scattered sites
in British Columbia that had burned less than 10 years prior to sampling
was from 61 to 80 percent [27].

Extrapolating from Alaback's [3] data (see Successional Status), devil's
club is probably absent from burn sites for decades following
stand-replacing fire.  Presumably, devil's-club establishes on these
sites from animal-dispersed seed after the canopy has closed enough to
shade this light-sensitive species.
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Regeneration Processes ( anglais )

fourni par Fire Effects Information System Plants
More info for the terms: layering, root crown

Information on devil's-club regeneration is scant.  Seedling growth is
apparently slow [34].  Devil's-club reproduces vegetatively, but the
method is uncertain.  Vegetative reproduction may be accomplished by
rhizomes [11] and/or layering [34].  Stickney [42] tentatively listed it
as a root crown sprouter.
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Regional Distribution in the Western United States ( anglais )

fourni par Fire Effects Information System Plants
More info on this topic.

This species can be found in the following regions of the western United States (according to the Bureau of Land Management classification of Physiographic Regions of the western United States):

    1  Northern Pacific Border
    2  Cascade Mountains
    5  Columbia Plateau
    8  Northern Rocky Mountains
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Successional Status ( anglais )

fourni par Fire Effects Information System Plants
More info on this topic.

More info for the term: climax

Devil's-club is moderately shade tolerant [24] and is primarily found in
understories of late seral, climax, and old-growth forests.  Best growth
is attained in climax (mature) forests [6,8].  Average devil's-club
biomass at widely located sites in western hemlock-western redcedar and
Sitka spruce-western hemlock forests of southeastern Alaska was as
follows [3]:

clearcut sites:                 0.00 lb/acre
young (30- to 100-year-old):    0.09 lb/acre  (0.1 kg/ha)
mature (100- to 250-year old):  4.80 lb/acre  (5.4 kg/ha)
old-growth (250+ years):        2.90 lb/acre  (3.3 kg/ha)
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Synonyms ( anglais )

fourni par Fire Effects Information System Plants
Oplopanax horridum (J. E. Smith) Miq.
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Taxonomy ( anglais )

fourni par Fire Effects Information System Plants
The currently accepted scientific name of devil's-club is Oplopanax
horridus (J. E. Smith) Miq. [45,46,48].
licence
cc-publicdomain
citation bibliographique
Howard, Janet L. 1993. Oplopanax horridus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: http://www.fs.fed.us/database/feis/

Comprehensive Description ( anglais )

fourni par North American Flora
Oplopanax horridus (Smith) Miq. Ann. Mus. Bot Lugd.-Bat. 1: 16, excl. pi. Jap. 1863.
Panax horridum Smith in Rees, Cycl. 26: Panax, no. 10. 1813.
Aralia erinacea Hook.; Scouler, Edinb. Jour. Sci. 6: 64. 1827.
Aralia occidentalis Schlecht.; Ledeb. Fl. Ross. 2: 375. as syn. 1844.
Ricinophyllum americanum Pall.; Ledeb. Fl. Ross. 2: 375, as syn. 1844.
Echinopanax horridum Cooper, Pacif. R. R. Rep. 12 2 : 31, 63. 1860. (Nomen nudum.)
Horsjieldia horrida Seem. Jour. Bot. 5: 237. 1867.
Falsia horrida Benth. & Hook.; Brewer & Wats. Bot. Calif. 1: 273. 1876.
Ricinophyllum horridum Nelson & Macbr. Bot. Gaz. 61: 45. 1916.
Shrub, 1-3 m. high, the stems, petioles, and rachises densely spinose (the spines spreading, stiff, slender, up to 1 cm. long or more), often pale-villose, the leaves and inflorescences near the apices of stout brownish or stramineous branchlets; petioles stout, up to 30 cm. long, the leaf-blades papyraceous, deeply or shallowly 5or 7-lobed, up to 35 cm. long and 40 cm. broad, deeply cordate at the base, acuminate or cuspidate at the apices of the lobes, conspicuously and irregularly serrate, the teeth acute, mucronulate, the principal nerves usually 7, prominent, usually spinose beneath, the secondary nerves numerous, spreading, the veinlets finely reticulate; inflorescence somewhat shorter than the leaves, the peduncles numerous, spreading, often villose, the basal ones up to 5 cm. long, those toward the apex shorter or lacking, each subtended by a papyraceous oblong fimbriate bract about 1 cm. long; umbels compact, 10-30'flowered, frequently not perfect, the pedicel short and villose at anthesis, in fruit glabrescent and up to 8 mm. long; calyx about 2 mm. long and 1.5 mm. in diameter at anthesis; petals submembranous, acute, 2-3 mm. long, 1-1.5 mm. broad, minutely granular-papillose distally; filaments filiform, at length about 4 mm. long, narrowed distally; anthers globose-oblong, about 1 mm. in diameter; styles subcarnose, 1-3 mm. long, incurved at the tip in the bud; fruit up to 7 mm. in diameter.
Type locality: Nootka Sound, Vancouver Island.
Distribution: Southern Alaska and Winnipeg to Oregon, Idaho, and Montana; also on Isle Royale, Michigan.
licence
cc-by-nc-sa-3.0
citation bibliographique
Albert Charles Smith, Mildred Esther Mathias, Lincoln Constance, Harold William Rickett. 1944-1945. UMBELLALES and CORNALES. North American flora. vol 28B. New York Botanical Garden, New York, NY
original
visiter la source
site partenaire
North American Flora

Devil's club ( anglais )

fourni par wikipedia EN

Devil's club or Devil's walking stick (Oplopanax horridus, Araliaceae; syn. Echinopanax horridus, Fatsia horrida)[2] (Squamish: ch’átyay̓)[3] (Tlingit: S'áxt)[4] is a large understory shrub native to the rainforests of the Pacific Northwest, but also disjunct on islands in Lake Superior. It is noted for its large palmate leaves and erect, woody stems covered in noxious and irritating spines. It is also known as Alaskan ginseng and similar names, although it is not a true ginseng.

Description

Devil's club generally grows to 1 to 1.5 metres (3+12 to 5 ft) tall. Some stands located in rainforest gullies or moist, undisturbed areas can reach heights of 3 to 5 m (10 to 16+12 ft) or more. The spines are found along the upper and lower surfaces of veins of its leaves as well as the stems. The leaves are spirally arranged on the stems, simple, palmately lobed with 5–13 lobes, 20 to 40 centimetres (8 to 15+12 in) across. The flowers are produced in dense umbels 10 to 20 cm (4 to 8 in) diameter, each flower small, with five greenish-white petals. The fruit is a small red drupe 4 to 7 millimetres (18 to 14 in) diameter.[2]

The plant is covered with brittle yellow spines that break off easily if the plants are handled or disturbed, and the entire plant has been described as having a "primordial" appearance. The plants are slow growing and take many years to reach seed-bearing maturity; this makes them very sensitive to human impact as they do not reproduce quickly.

Devil's club reproduces by forming clonal colonies by means of rhizomes. What can appear to be several different plants may actually have all been one plant originally, with the clones detaching themselves after becoming established by laying down roots.[5]

Distribution and habitat

This species usually grows in moist, dense forest habitats, and is most abundant in old-growth conifer forests in the Pacific Northwest.[2] It is found from southcentral Alaska[6] south to Oregon, and eastward to western Alberta and Montana. Disjunct native populations also occur over 1,500 kilometres (930 miles) away in Lake Superior on Isle Royale and Passage Island, Michigan and Porphyry Island and Slate Island, Ontario.[7]

Uses

Traditionally, the charcoal from the stalks is still used to make ceremonial and protective face paints, and among the Ditidaht and neighboring groups, it was equally significant to red ochre as a symbolic link to the spirit world. Native American peoples such as the Tlingit and Haida have used the plant as traditional medicine for ailments such as adult-onset diabetes, as well as rheumatoid arthritis.[8]

The plant has been used ceremonially by the Tlingit, Tsimshian, and Haida people residing in Southeast Alaska and coastal British Columbia. A piece of Devil's club hung over a doorway is said to ward off evil. The plant is harvested and used in a variety of ways, most commonly as an oral tea in traditional settings, but also poultices and ointments.[9] Native Americans also dried and powdered the bark for use as a deodorant[10] and used the mashed berries to clean hair.[11]

Because devil's club is related to American ginseng, some people try to market the plant as an 'adaptogen'. The plant has been harvested for this purpose and sold widely as "Alaskan ginseng". Despite some morphological similarities between the araliaceous members Panax ('true' ginseng), Eleutherococcus senticosus ("Siberian ginseng") and devil's club, the different genera are chemically diverse.

Research

An in vitro study showed that extracts of devil's club might inhibit tuberculosis.[12] Another study suggested devil's club may reduce leukemia burden in mice engrafted with murine C1498 acute myeloid leukemia cells.[13]

References

  1. ^ Hulten, Eric (1968). Flora of Alaska and Neighboring Territories. ISBN 978-0-8047-0643-8.
  2. ^ a b c Pojar, Jim; Andy MacKinnon (1994). Plants of Coastal British Columbia. BC Ministry of Forests and Lone Pine Publishing. p. 82. ISBN 978-1-55105-042-3.
  3. ^ Duncan, Rebecca. "Indigenous Plant Guide: Sḵwx̱wú7mesh sníchim". Museum of Vancouver. Sḵwx̱wú7mesh Úxwumixw. Retrieved 19 March 2023.
  4. ^ "S'áxt' - Devil's Club - Glacier Bay Ethnobotany (U.S. National Park Service)". www.nps.gov. Retrieved 2023-04-01.
  5. ^ Trevor C. Lantz; Joseph A. Antos (2002). "Clonal expansion in the deciduous understory shrub, devil's club". Can. J. Bot. 80 (10): 1052–1062. doi:10.1139/b02-095. Archived from the original on 2012-07-07.
  6. ^ "Devil's Club".
  7. ^ "Oplopanax horridus". U.S. Forest Service. Retrieved 2022-08-06.
  8. ^ Turner, Nancy J. (May 1982). "Traditional Use of Devil's-Club (Oplopanax horridus; Araliaceae) by Native Peoples in Western North America" (PDF). J. Ethnobiol. Society of Ethnobiology. Retrieved 28 February 2013.
  9. ^ Levine, Ketzel Use of devil's club plant central to Tlingit culture National Public Radio Morning Edition, 8/11/2004
  10. ^ Whitney, Stephen (1985). Western Forests (The Audubon Society Nature Guides). New York: Knopf. p. 425. ISBN 0-394-73127-1.
  11. ^ Fagan, Damian (2019). Wildflowers of Oregon: A Field Guide to Over 400 Wildflowers, Trees, and Shrubs of the Coast, Cascades, and High Desert. Guilford, CT: FalconGuides. p. 23. ISBN 978-1-4930-3633-2. OCLC 1073035766.
  12. ^ Inui T, Wang Y, Deng S, Smith DC, Franzblau SG, Pauli GF (Jun 1, 2000). "Counter-current chromatography based analysis of synergy in an anti-tuberculosis ethnobotanical". Journal of Chromatography A. 1151 (1–2): 211–5. doi:10.1016/j.chroma.2007.01.127. PMC 2533621. PMID 17316661.
  13. ^ McGill; et al. (2014). "Extracts of Devil's Club (Oplopanax horridus) Exert Therapeutic Efficacy in Experimental Models of Acute Myeloid Leukemia". Phytotherapy Research. 28 (9): 1308–1314. doi:10.1002/ptr.5129. PMID 25340187. S2CID 25922076.

licence
cc-by-sa-3.0
droit d’auteur
Wikipedia authors and editors
original
visiter la source
site partenaire
wikipedia EN

Devil's club: Brief Summary ( anglais )

fourni par wikipedia EN

Devil's club or Devil's walking stick (Oplopanax horridus, Araliaceae; syn. Echinopanax horridus, Fatsia horrida) (Squamish: ch’átyay̓) (Tlingit: S'áxt) is a large understory shrub native to the rainforests of the Pacific Northwest, but also disjunct on islands in Lake Superior. It is noted for its large palmate leaves and erect, woody stems covered in noxious and irritating spines. It is also known as Alaskan ginseng and similar names, although it is not a true ginseng.

licence
cc-by-sa-3.0
droit d’auteur
Wikipedia authors and editors
original
visiter la source
site partenaire
wikipedia EN