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Description ( anglais )

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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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droit d’auteur
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
citation bibliographique
Flora of North America Vol. 20: 265,301, 302 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
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Flora of North America Editorial Committee
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eFloras.org
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eFloras

Erigeron lanatus ( anglais )

fourni par 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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Wikipedia authors and editors
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wikipedia EN

Erigeron lanatus: Brief Summary ( anglais )

fourni par 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.

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Erigeron lanatus ( vietnamien )

fourni par wikipedia VI
Tango style Wikipedia Icon.svg
Đây là một bài mồ côi vì không có hoặc có ít bài khác liên kết đến nó.
Xin hãy tạo liên kết đến bài này trong các bài của các chủ đề liên quan. (tháng 7 2018)


Erigeron lanatus là một loài thực vật có hoa trong họ Cúc. Loài này được Hook. mô tả khoa học đầu tiên năm 1834.[1]

Chú thích

  1. ^ The Plant List (2010). Erigeron lanatus. Truy cập ngày 4 tháng 6 năm 2013.

Liên kết ngoài

 src= Wikimedia Commons có thư viện hình ảnh và phương tiện truyền tải về Erigeron lanatus  src= Wikispecies có thông tin sinh học về Erigeron lanatus


Hình tượng sơ khai Bài viết tông cúc Astereae này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.
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wikipedia VI

Erigeron lanatus: Brief Summary ( vietnamien )

fourni par wikipedia VI


Erigeron lanatus là một loài thực vật có hoa trong họ Cúc. Loài này được Hook. mô tả khoa học đầu tiên năm 1834.

licence
cc-by-sa-3.0
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Wikipedia tác giả và biên tập viên
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visiter la source
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wikipedia VI