Description
provided by eFloras
Plants 12–50 cm. Stems usually simple, rarely branched. Leaves 3–7 pairs, mostly cauline; petiolate (petioles, at least proximal, relatively narrow, ± equaling blades); blades narrowly to broadly lanceolate or ovate, 3.5–14 × 0.5–3.7 cm, margins regularly dentate or denticulate, apices acute, faces glabrous or moderately pilose, sparsely to densely stipitate-glandular. Heads 3–8 (erect). Involucres campanulate-turbinate. Phyllaries 6–14, lanceolate (apices acute). Ray florets 6–17; corollas yellow. Disc florets: corollas yellow; anthers yellow. Cypselae gray to brown, 3–6 mm, densely hirsute, sometimes stipitate-glandular; pappi white, bristles barbellate. 2n = 38, 57, 76.
- license
- cc-by-nc-sa-3.0
- copyright
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
provided by eFloras
Arnica alpina (Linnaeus) Olin & Ladau subsp. lonchophylla (Greene) G. W. Douglas & Ruyle-Douglas; A. angustifolia Vahl subsp. lonchophylla (Greene) G. W. Douglas & Ruyle-Douglas; A. arnoglossa Greene; A. chionopappa Fernald; A. gaspensis Fernald; A. lonchophylla subsp. arnoglossa (Greene) Maguire; A. lonchophylla subsp. chionopappa (Fernald) Maguire
- license
- cc-by-nc-sa-3.0
- copyright
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Comprehensive Description
provided by North American Flora
Arnica arnoglossa Greene, Pittonia 4 : 166. 1900
Arnica montana anguslifolia Hook. Fl. Bor. Am. 1: 330, in part. 1834. Arnica chionopappa Fernald, Rhodora 7: 148. 1905.
Rootstock branched; stem 1-3.5 dm. high, villous and glandular-puberulent, especially on
the peduncles; leaves of the offsets and basal leaves long-petioled ; petioles 3-6 dm. long;
blades narrowly ovate or lanceolate to linear-lanceolate, tapering at each end, strongly 3-5-
ribbed, serrate-dentate, 2-10 cm. long, usually 1-3.5 cm. wide, sparingly villous on both sides;
stem-leaves 2-4 pairs, the lowest pair narrowly lanceolate, with short winged petioles, the
rest narrowly lanceolate and sessile, the upper reduced; heads 1-3; peduncles 5-10 cm. long;
involucre turbinate, 8-10 mm. high, 10-15 mm. broad, villous and glandular-puberulent;
bracts linear-lanceolate, acuminate; ray-flowers 8-15, the ligules 12-15 mm. long, about 4 mm.
wide, 3-toothed; disk-corollas 7-8 mm. long; achenes 4-5 mm. long, hirsute; pappus-bristles
white, 6-7 mm. long, barbellate.
Type locality: Near Fort Mead, Black Hills. South Dakota.
Distribution: Gaspe Peninsula, Quebec, to Wyoming and the lower Mackenzie River.
- bibliographic citation
- Per Axel Rydberg. 1927. (CARDUALES); CARDUACEAE; LIABEAE, NEUROLAENEAE, SENECIONEAE (pars). North American flora. vol 34(4). New York Botanical Garden, New York, NY
Comprehensive Description
provided by North American Flora
Arnica lonchophylla Greene, Pittonia 4: 164. 1900
Rootstock branched; stem about 3 dm. high, finely villous, purplish below; stem-leaves
4 or 5 pairs, the lower narrowly oblanceolate or linear-oblanceolate, 3-7 cm. long, 9-13 mm. wide, short-petioled, acute, denticulate, sparingly villous and glandular-puberulent on both sides, the upper linear or lance-linear, sessile, the uppermost much reduced; heads usually 3; involucre turbinate, about 1 cm. high and broad, puberulent and somewhat villous; bracts 8-12, lanceolate, acuminate; ray-flowers 6-10, the ligules about 15 mm. long; achenes hirsute,
5 mm. long; pappus-bristles 6-7 mm. long, white, barbellate. Perhaps not specifically distinct
from the preceding.
Type locality: Athabasca River, Alberta. Distribution: Alberta and Mackenzie.
- bibliographic citation
- Per Axel Rydberg. 1927. (CARDUALES); CARDUACEAE; LIABEAE, NEUROLAENEAE, SENECIONEAE (pars). North American flora. vol 34(4). New York Botanical Garden, New York, NY
Comprehensive Description
provided by North American Flora
Arnica gaspensis Fernald, Rhodora 7: 148. 1905
Rootstock slender, horizontal; stem 2-4 dm. high, striate, sparingly villous throughout and rather densely glandular-puberulent on the upper part, especially on the peduncles; leaves of the offsets and basal leaves long-petioled ; petioles 3-5 dm. long; blades lanceolate, acuminate at each end, 3-7 cm. long, 1-2 cm. wide, saliently dentate, sparingly villous and glandular, strongly 3-5-ribbed; stem-leaves 3 or 4 pairs, the lowest pair similar to the basal leaves, but with winged petioles, the upper sessile, linear-lanceolate or linear; heads 1-3; peduncles 1-1.5 dm. long; involucre turbinate, about 1 cm. high, 12-15 mm. broad, villous and slightly glandular-puberulent; bracts 12-15, oblanceolate, acuminate; ray-flowers 10-12, the ligules 15-20 mm. long, 4-5 mm. wide, sharply 3-toothed; disk-corollas 7-8 mm. long; achenes 6 mm. long, hirsute; pappus-bristles straw-colored, 8 mm. long, barbellate.
Type locality: Cape Tourelle. near Sle. Anne des Monts, Gaspe County, Quebec. Distribution: Gasp£ peninsula. Quebec.
- bibliographic citation
- Per Axel Rydberg. 1927. (CARDUALES); CARDUACEAE; LIABEAE, NEUROLAENEAE, SENECIONEAE (pars). North American flora. vol 34(4). New York Botanical Garden, New York, NY
Arnica lonchophylla
provided by wikipedia EN
Arnica lonchophylla is a species of flowering plant in family Asteraceae. The common names for this species includes longleaf arnica, northern arnica,[2] and spear-leaved arnica.[3] It has daisy-like yellow flowers that are 2.5 to 5 cm across with a yellow center disks.[4]
Description
Arnica lonchophylla is a herbaceous rhizomatous perennial growing 12 to 50 cm tall, with normally unbranched stems.[5] The rhizomes are densely scaly. The 3 to 7 pairs of basal leaves have long petioles (leaf stalk), are three nerved, with margins that are more or less uniformly toothed. The basal leaves are 3.5 to 14 cm long and 0.5 to 3.7 cm wide. The stem leaves lack petioles and are arranged oppositely on the stem, reducing in size as they progress up the stem. It has yellow-flowered radiate heads with 3 to 8 heads per stem. Each flower head has 6 to 17 ray florets. The flower anthers are yellow. The cypselae (a dry single-seeded fruit) are gray to brown and 3 to 6 mm long. The pappus is white with ridged bristles pubescent hairs and a naked receptacle. Flowering occurs June thru August.[6][7][8]
Subspecies
Subspecies have included:
-
Arnica lonchophylla ssp. lonchophylla[9]
-
Arnica lonchophylla ssp. arnoglossa (Greene) Maguire[10]
Habitat
Arnica lonchophylla grows in dry to mesic soils, on open montane slopes and open woodlands, along gravel-bedded streams and other shorelines. It also is found on calcareous rocky outcrops, to lowland Arctic tundra; it is found from elevations of 0–1500 meters.
Distribution
Arnica lonchophylla is generally a subarctic species that is found from British Columbia north to Alaska and the Yukon and east to Newfoundland and Labrador. It can also be found in the US states of Alaska, South Dakota, Minnesota, and Wyoming.[11]
In Minnesota it is listed as a threatened species and survives as scattered isolated relict populations found around lake superior which provides lake effects that suit this species needs for cool summers, it is found in calcareous microhabitats on exposed rocky shorelines and cliffs.[7]
References
- license
- cc-by-sa-3.0
- copyright
- Wikipedia authors and editors
Arnica lonchophylla: Brief Summary
provided by wikipedia EN
Arnica lonchophylla is a species of flowering plant in family Asteraceae. The common names for this species includes longleaf arnica, northern arnica, and spear-leaved arnica. It has daisy-like yellow flowers that are 2.5 to 5 cm across with a yellow center disks.
- license
- cc-by-sa-3.0
- copyright
- Wikipedia authors and editors
