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Comments ( anglais )

fourni par eFloras
Crepis bakeri is generally recognized by the low stature, dense rosettes of pinnately lobed leaves with coarsely dentate lobes, tomentose stems and leaves, stipitate-glandular hairs distally on stems, relatively large involucres, and densely flowered heads. It is considered closely related to C. occidentalis. Three somewhat weakly defined subspecies were recognized by E. B. Babcock (1947).
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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. 19: 225, 226, 233 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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eFloras

Description ( anglais )

fourni par eFloras
Perennials, 10–30 cm (taproots thick, caudices swollen, often covered by old leaf bases). Stems 1–3, erect (often reddish), stout, mostly simple, sparsely to densely tomentose, often stipitate-gland-ular proximally. Leaves basal and cauline; petiolate (at least basal); blades elliptic, runcinate, 8–20 × 2–5 cm, margins pinnately lobed (lobes broadly lanceolate, coarsely dentate, midribs often reddish), apices acute, faces sparsely to densely tomentose, stipitate-glandular. Heads 2–22 (1–3 per branch), in cymiform arrays. Calyculi of 8–10, deltate or lanceolate, tomentose bractlets 3–8 mm. Involucres cylindric, 11–21 × 5–15 mm. Phyllaries 10–14, lanceolate, 10–14 mm (margins yellowish), apices acute, abaxial faces glabrous or ± tomentose, sometimes setose and stipitate-glandular, adaxial glabrous or with fine hairs. Florets 11–40; corollas yellow, 16–20 mm. Cypselae dark or pale brown to yellowish, fusiform, 6–11 mm, apices ± tapered, ribs 10–13; pappi whitish, 6–13 mm. 2n = 22, 33, 44, 55.
licence
cc-by-nc-sa-3.0
droit d’auteur
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
citation bibliographique
Flora of North America Vol. 19: 225, 226, 233 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
rédacteur
Flora of North America Editorial Committee
projet
eFloras.org
original
visiter la source
site partenaire
eFloras

Crepis bakeri ( anglais )

fourni par wikipedia EN

Crepis bakeri is a species of flowering plant in the family Asteraceae known by the common name Baker's hawksbeard. It is native to the western United States where it grows in many types of mountain and plateau habitat. It is found in Oregon, Washington, Idaho, northern California, Nevada, and Utah.[2][3]

Crepis bakeri is a perennial herb producing a dark green, hairy, glandular stem up to about 30 centimeters (12 inches) tall from taproot and a thick caudex at ground level. The leaves are narrowly oval and fringed with shallow lobes. They are dark dusty green with reddish or purplish veins and the basal leaves approach 20 centimeters (8 inches) in maximum length. The inflorescence is an open array of up to 22 flower heads. Each has a base of lance-shaped phyllaries which are hairy and often bristly. The flower head contains up to 60 yellow ray florets. There are no disc florets. The fruit is a thin achene up to a centimeter long with an off-white pappus.[4][5]

Subspecies[4]

References

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wikipedia EN

Crepis bakeri: Brief Summary ( anglais )

fourni par wikipedia EN

Crepis bakeri is a species of flowering plant in the family Asteraceae known by the common name Baker's hawksbeard. It is native to the western United States where it grows in many types of mountain and plateau habitat. It is found in Oregon, Washington, Idaho, northern California, Nevada, and Utah.

Crepis bakeri is a perennial herb producing a dark green, hairy, glandular stem up to about 30 centimeters (12 inches) tall from taproot and a thick caudex at ground level. The leaves are narrowly oval and fringed with shallow lobes. They are dark dusty green with reddish or purplish veins and the basal leaves approach 20 centimeters (8 inches) in maximum length. The inflorescence is an open array of up to 22 flower heads. Each has a base of lance-shaped phyllaries which are hairy and often bristly. The flower head contains up to 60 yellow ray florets. There are no disc florets. The fruit is a thin achene up to a centimeter long with an off-white pappus.

Subspecies Crepis bakeri subsp. bakeri – California, Nevada, Oregon, Washington Crepis bakeri subsp. cusickii (Eastw.) Babc. & Stebbins – California, Oregon, Utah Crepis bakeri subsp. idahoensis Babc. & Stebbins – Idaho, California
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wikipedia EN

Crepis bakeri ( vietnamien )

fourni par wikipedia VI

Crepis bakeri là một loài thực vật có hoa trong họ Cúc. Loài này được Greene mô tả khoa học đầu tiên năm 1895.[1]

Chú thích

  1. ^ The Plant List (2010). Crepis bakeri. 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 Crepis bakeri  src= Wikispecies có thông tin sinh học về Crepis bakeri


Bài viết tông cúc Cichorieae 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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cc-by-sa-3.0
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Wikipedia tác giả và biên tập viên
original
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wikipedia VI

Crepis bakeri: Brief Summary ( vietnamien )

fourni par wikipedia VI

Crepis bakeri là một loài thực vật có hoa trong họ Cúc. Loài này được Greene mô tả khoa học đầu tiên năm 1895.

licence
cc-by-sa-3.0
droit d’auteur
Wikipedia tác giả và biên tập viên
original
visiter la source
site partenaire
wikipedia VI