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Aspen Sunflower

Helianthella quinquenervis (Hook.) A. Gray

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provided by eFloras
Helianthella quinquenervis grows primarily in the Rocky Mountains, Great Basin ranges, and Black Hills.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 114, 115, 116 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of North America @ eFloras.org
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Flora of North America Editorial Committee
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Description

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Plants (30–)50–150 cm. Cauline leaves: largest proximal to mid stems; blades usually 3– or 5–nerved, elliptic or ovate-lanceolate to lanceolate, 10–50 cm, faces sparsely hirsute or glabrous. Heads usually borne singly, ± nodding. Involucres hemispheric or broader, (25–)40–50 mm diam. Phyllaries (outer sometimes ± foliaceous) ovate to lanceolate (subequal to unequal, margins ciliate). Paleae scarious, relatively soft. Ray florets (13–)21; (corollas bright yellow) laminae 25–30(–40) mm. Disc corollas yellow. Cypselae strongly compressed, narrowly obovate (margins ciliate, faces strigose); pappi of 2 ± subulate scales plus 2–4+ shorter scales.
license
cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 114, 115, 116 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Synonym

provided by eFloras
Helianthus quinquenervis Hooker, London J. Bot. 6: 247. 1847
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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 21: 114, 115, 116 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
partner site
eFloras

Helianthella quinquenervis

provided by wikipedia EN

Helianthella quinquenervis, the fivenerve helianthella,[2] is a North American plant species in the family Asteraceae. It grows in the mountains of the western United States and northern Mexico. This include the Rockies, the Black Hills, the ranges of the Great Basin, and the northern Sierra Madre, from Montana, Oregon, and South Dakota south as far as western Chihuahua and Coahuila.[3][4][5]

Helianthella quinquenervis is a herbaceous plant up to 150 cm (4.9 ft) tall. Leaves are larger than those of most related species, up to 50 cm (20 in) long, each with 3 or 5 prominent veins running the length of the leaf. The plant usually produces only one yellow flower head per stem, nodding (hanging). Each head contains 8-21 bright yellow ray flowers surrounding numerous yellow disc flowers.[6]

References

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Helianthella quinquenervis: Brief Summary

provided by wikipedia EN

Helianthella quinquenervis, the fivenerve helianthella, is a North American plant species in the family Asteraceae. It grows in the mountains of the western United States and northern Mexico. This include the Rockies, the Black Hills, the ranges of the Great Basin, and the northern Sierra Madre, from Montana, Oregon, and South Dakota south as far as western Chihuahua and Coahuila.

Helianthella quinquenervis is a herbaceous plant up to 150 cm (4.9 ft) tall. Leaves are larger than those of most related species, up to 50 cm (20 in) long, each with 3 or 5 prominent veins running the length of the leaf. The plant usually produces only one yellow flower head per stem, nodding (hanging). Each head contains 8-21 bright yellow ray flowers surrounding numerous yellow disc flowers.

license
cc-by-sa-3.0
copyright
Wikipedia authors and editors
original
visit source
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wikipedia EN