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Woolly Fleabane

Erigeron lanatus (A. Nels. & J. F. Macbr.) Hook.

Description

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Perennials, 2–5 cm; taprooted, roots sometimes barely evident, caudices diffuse, with extensive systems of rhizomelike, relatively long, slender branches. Stems erect (simple, ± scapiform), finely and loosely villous, minutely glandular. Leaves basal (persistent); blades oblanceolate to oblong-oblanceolate, 5–25(–30) × 2–5 mm , strongly reduced distally, margins usually entire, smallest and earliest usually 3-toothed or -lobed apically (lobes or teeth acute), ultimately entire, finely and loosely lanate-villous, eglandular. Heads 1. Involucres 9–13 × 12–23 mm. Phyllaries in 2–3 series (purple or purple-tipped), moderately to densely, finely and loosely villous (hairs sometimes with purple cross walls), minutely glandular. Ray florets 30–80; corollas white or purplish, 8–11 mm, laminae not coiling or reflexing, spreading. Disc corollas 5–6.5 mm. Cypselae 3.5–4 mm, 2-nerved, faces finely hirtellous to glabrate; pappi: outer of setae, inner of 25–35 (whitish to tawny) bristles (often twisted). 2n = 36.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 20: 265,301, 302 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of North America @ eFloras.org
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Erigeron lanatus

provided by wikipedia EN

Erigeron lanatus is a species of flowering plant in the family Asteraceae known by the common name woolly fleabane. It is native to western North America, where it occurs in the mountains straddling the border between British Columbia and Alberta and Montana, with isolated populations occurring as far north as Yukon and as far south as Colorado.[3][1]

Erigeron lanatus is a small perennial herb growing just a few centimeters tall. The leaves are mostly basal, each roughly lance-shaped and up to 3 centimeters (1.2 inches) long. They are coated in loose, woolly fibers. The inflorescence is made up of one flower head with white or purple-tinged ray florets measuring about 1 centimeter (0.4 inches) long. The head is lined with hairy purple or purple-tipped phyllaries. Blooming occurs in July and August. The head is an achene with a pappus of bristles.[4]

Erigeron lanatus grows in high-elevation subalpine and alpine climates. It is most often found growing in limestone scree. It has been seen growing with Siberian aster (Aster sibiricus) and starwort (Stellaria americana).[3]

Hiking and mining may threaten this species in some areas.[1]

References

  1. ^ a b c Erigeron lanatus. The Nature Conservancy.
  2. ^ The Plant List, Erigeron lanatus Hook.
  3. ^ a b Williams, Tara Y. 1990. Erigeron lanatus. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory.
  4. ^ Erigeron lanatus. Flora of North America.
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Erigeron lanatus: Brief Summary

provided by wikipedia EN

Erigeron lanatus is a species of flowering plant in the family Asteraceae known by the common name woolly fleabane. It is native to western North America, where it occurs in the mountains straddling the border between British Columbia and Alberta and Montana, with isolated populations occurring as far north as Yukon and as far south as Colorado.

Erigeron lanatus is a small perennial herb growing just a few centimeters tall. The leaves are mostly basal, each roughly lance-shaped and up to 3 centimeters (1.2 inches) long. They are coated in loose, woolly fibers. The inflorescence is made up of one flower head with white or purple-tinged ray florets measuring about 1 centimeter (0.4 inches) long. The head is lined with hairy purple or purple-tipped phyllaries. Blooming occurs in July and August. The head is an achene with a pappus of bristles.

Erigeron lanatus grows in high-elevation subalpine and alpine climates. It is most often found growing in limestone scree. It has been seen growing with Siberian aster (Aster sibiricus) and starwort (Stellaria americana).

Hiking and mining may threaten this species in some areas.

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