dcsimg
 
  en  
names in breadcrumbs
Image of hollyhock
Creatures » … » Plants » … » Dicotyledons » … » Mallows » …

Hollyhock

Alcea rosea L.

English
show all Azerbaijani Breton Catalan; Valencian Czech Welsh German English Spanish; Castilian Estonian Basque Finnish French Italian Japanese Korean Kurdish Dutch; Flemish Occitan (post 1500) Polish Portuguese Upper Sorbian North Frisian Asturian Russian Slovak Albanian Swedish Turkish Ukrainian Vietnamese Chinese
filter by provider
show all BioImages, the virtual fieldguide, UK eFloras wikipedia EN

Associations

provided by BioImages, the virtual fieldguide, UK
Foodplant / gall
Agrobacterium tumefaciens causes gall of stem (esp. base) of Alcea rosea

Foodplant / internal feeder
larva of Apion radiolus feeds within stem of Alcea rosea

Foodplant / sap sucker
nymph of Campylomma verbasci sucks sap of Alcea rosea

In Great Britain and/or Ireland:
Foodplant / parasite
Golovinomyces orontii parasitises live Alcea rosea

Foodplant / parasite
Leveillula taurica parasitises Alcea rosea

Foodplant / sap sucker
Macrosiphum euphorbiae sucks sap of live shoot (young) of Alcea rosea

Foodplant / saprobe
immersed, gregarious, often in lines pycnidium of Phoma coelomycetous anamorph of Phoma nebulosa is saprobic on dead stem of Alcea rosea

Foodplant / gall
pulvinate, hypophyllous telium of Puccinia malvacearum causes gall of live bract of Alcea rosea
Remarks: season: 4-11
Other: major host/prey

license
cc-by-nc-sa-3.0
copyright
BioImages
project
BioImages
original
visit source
partner site
BioImages, the virtual fieldguide, UK

Comments

provided by eFloras
In Pakistan it is extensively cultivated throughout.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of Pakistan Vol. 0: 49 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of Pakistan @ eFloras.org
editor
S. I. Ali & M. Qaiser
project
eFloras.org
original
visit source
partner site
eFloras

Comments

provided by eFloras
Alcea rosea originated in the SW provinces of China and has been grown in Europe since at least the 15th century. It is cultivated as an
ornamental and is used medicinally. It is not known from any truly wild situations.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 12: 268 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
visit source
partner site
eFloras

Description

provided by eFloras
Erect annual herbs, 1-2.5 m tall. Stem rough stellate hairy, glabrescent. Leaves long petioled, large, round or ovate, at base cordate, at apex rounded, entire to 5-7 lobed, upper 3-lobed, crenate to dentate, scabrous and stellate pubescent on both sides. Flowers axillary, solitary or 2-3 in fascicles, spike like because of short pedicel in terminal branches, pedicel enlarged in fruit. Epicalyx segments 6-7, 1.5 cm long or more, fused below the middle, lanceolate to ovate. Calyx up to 1.5 times longer than epicalyx, both epicalyx and calyx stellate pubescent, scabrous. Corolla 5-7 cm across, of various colours; petals 4-7 cm long. Fruit depressed, globose; pubescent, enclosed by calyx, ± 2 cm across; mericarps 2C-40, channeled and winged dorsally, 5-7 mm across, back 1.5 mm broad.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of Pakistan Vol. 0: 49 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of Pakistan @ eFloras.org
editor
S. I. Ali & M. Qaiser
project
eFloras.org
original
visit source
partner site
eFloras

Description

provided by eFloras
Herbs biennial, erect, to 2(-3) m tall; stem densely hirsute. Stipules ovate, ca. 8 mm, apically 3-lobed; petiole 5-15 cm, stellate hirsute; leaf blade nearly orbicular, palmately 5-7-lobed or crenate-angled, 6-16 cm in diam., papery, abaxially long stellate hirsute or stellate tomentose, adaxially sparsely stellate pilose, lobes triangular or rounded, central lobe ca. 3 × 4-6 cm. Flowers solitary or fascicled, aggregated into a terminal, spikelike inflorescence. Bracts foliaceous. Pedicel ca. 5 mm, 8-10 mm in fruit, stellate hirsute. Epicalyx cup-shaped, usually 6- or 7-lobed, 8-10 mm, densely stellate hirsute, lobes ovate-lanceolate. Calyx campanulate, 2-3 cm in diam., lobes ovate-triangular, 1.2-1.5 cm, densely stellate hirsute. Corolla red, purple, white, pink, yellow, or black-purple, 6-10 cm in diam., sometimes double; petals obovate-triangular, ca. 4 cm, base attenuate, claw tipped with long thin hairs, apex emarginate. Staminal column glabrous, ca. 2 cm; filaments ca. 2 mm. Style branches many, puberulent. Schizocarp disk-shaped, ca. 2 cm in diam., puberulent; mericarps many, nearly orbicular, longitudinally grooved. Fl. Feb-Aug.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 12: 268 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
visit source
partner site
eFloras

Distribution

provided by eFloras
Of uncertain origin. Extensively cultivated.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Annotated Checklist of the Flowering Plants of Nepal Vol. 0 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Annotated Checklist of the Flowering Plants of Nepal @ eFloras.org
author
K.K. Shrestha, J.R. Press and D.A. Sutton
project
eFloras.org
original
visit source
partner site
eFloras

Distribution

provided by eFloras
Distribution: According to Zohary (l.c.) “wild Alcea rosea L. seems to be indigenous almost exclusively on the Aegean islands and the adjacent Balkan Peninsula. The areas of its origin are no doubt the north-eastern Mediterranean countries, but not China which is beyond the natural range of the genus”. Elsewhere cultivated.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of Pakistan Vol. 0: 49 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of Pakistan @ eFloras.org
editor
S. I. Ali & M. Qaiser
project
eFloras.org
original
visit source
partner site
eFloras

Habitat & Distribution

provided by eFloras
● Cultivated. Throughout China [widely introduced throughout temperate regions].
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 12: 268 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
visit source
partner site
eFloras

Synonym

provided by eFloras
Althaea rosea (Linnaeus) Cavanilles; A. rosea var. sinensis (Cavanilles) S. Y. Hu; A. sinensis Cavanilles.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of China Vol. 12: 268 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of China @ eFloras.org
editor
Wu Zhengyi, Peter H. Raven & Hong Deyuan
project
eFloras.org
original
visit source
partner site
eFloras

Alcea rosea

provided by wikipedia EN

Alcea rosea, the common hollyhock, is an ornamental dicot flowering plant in the family Malvaceae. It was imported into Europe from southwestern China during, or possibly before, the 15th century.[2] William Turner, a herbalist of the time, gave it the name "holyoke" from which the English name derives.

Cultivation

Illustration, 1897

Alcea rosea is variously described as a biennial (having a two-year life cycle), as an annual, or as a short-lived perennial.[3][4][5] It frequently self-sows, which may create a perception that the plants are perennial.[3] The plant may flower during its first year when sown early.[4] It will grow in a wide range of soils, and can easily reach a height of 8 ft (2.4 m)

The flowers are in a range of colours from white to dark red, including pink, yellow and orange. Different colours prefer different soils. The darker red variety seems to favour sandy soils, while the lighter colour seems to favour clay soils. The plants are easily grown from seed, and readily self-seed. However, tender plants, whether young from seed or from old stock, may be wiped out by slugs and snails. The foliage is subject to attack from rust (Puccinia malvacearum), which may be treated with fungicides.[6] Commercial growers have reported that some closely related species (Alcea rugosa and Alcea ficifolia) are resistant to this fungus.[7]

Properties

Growing up to 8 feet tall, this plant usually does not require staking, producing large flowers around 5 inches in diameter. Its leaves are large and heart-shaped. The flowers attract hummingbirds and butterflies.[8]

Pests and diseases

The leaves are vulnerable to rust, leaf spot and anthracnose. Pest problems include Japanese beetle and spider mites. Though damage to the leaves can be extensive, the flowers are rarely affected.[8]

Herbalism

In herbal medicine, hollyhock is believed to be an emollient and laxative. It is used to control inflammation, to stop bedwetting and as a mouthwash in cases of bleeding gums.[9]

Gallery

  • In Japan

    In Japan

  • Black hollyhock (Alcea rosa nigra)

    Black cultivar 'Nigra'

  • Hollyhock ‘Blacknight'

    ‘Blacknight'

  • In Israel

    In Israel

  • Alcea rosea01.jpg
  • Hollyhock 1r.jpg
  • ALTHAEA ROSEA - TORÀ - IB-737 (Malva reial).JPG

References

Wikimedia Commons has media related to Alcea rosea.
  1. ^ a b "Alcea rosea". Tropicos. Missouri Botanical Garden. Retrieved 18 April 2017.
  2. ^ "Flora of China 12: 267–268. 2007" (PDF). Harvard University. Retrieved 2011-07-21.
  3. ^ a b "Hollyhock". Cornell University. Retrieved 2011-07-21.
  4. ^ a b "Annual - Hollyhock - Althaea rosea". University of Illinois. Retrieved 2011-07-21.
  5. ^ "Plant of the Month - Hollyhocks" (PDF). New Mexico State University Master Gardener Newsletter. Archived from the original (PDF) on 2011-10-07. Retrieved 2011-07-21.
  6. ^ "Hollyhock rust". Cornell University. Archived from the original on 22 June 2009. Retrieved 2009-07-15.
  7. ^ "Yard & Garden Line News". University of Minnesota Extension Service. 2005-06-15. Archived from the original on 2010-03-22. Retrieved 2010-02-05.
  8. ^ a b "Alcea rosea (single)". missouribotanicalgarden.org. Missouri Botanical Garden. Retrieved 27 February 2022.
  9. ^ Howard, Michael. Traditional Folk Remedies (Century, 1987) p.155
license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN

Alcea rosea: Brief Summary

provided by wikipedia EN

Alcea rosea, the common hollyhock, is an ornamental dicot flowering plant in the family Malvaceae. It was imported into Europe from southwestern China during, or possibly before, the 15th century. William Turner, a herbalist of the time, gave it the name "holyoke" from which the English name derives.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
partner site
wikipedia EN
EOL is hosted by: