Comments
(
Inglês
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fornecido por eFloras
Pyrrocoma lanceolata has the widest range of any species and exhibits much variability in habit and head size. A number of infraspecific taxa have been recognized in the past; only two were retained by R. A. Mayes (1976).
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
(
Inglês
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fornecido por eFloras
Plants 20–50 cm. Stems 1–10, decumbent to ascending or erect, red-tinged, sometimes branched, sparsely leafy, ± tomentulose or glabrous, sometimes stipitate-glandular. Leaves: basal blades lanceolate or rarely oblanceolate to narrowly elliptic, 50–300 × 8–30 mm, margins sharply dentate, eciliate, apices acute, spinulose; cauline sessile, lanceolate, bases clasping; faces ± tomentulose to glabrate or glabrous, sometimes stipitate-glandular. Heads (1–)4–20(–50) in corymbiform or paniculiform arrays. Peduncles 0–6 cm. Involucres hemispheric, 7–10 × 10–18 mm. Phyllaries in 3–4 series, linear-lanceolate to lanceolate, 3–11 mm, unequal, bases white-chartaceous, margins entire, eciliate, apices conspicuously green, faces glabrous or tomentulose, rarely stipitate-glandular. Ray florets 18–45; corollas 6–11 mm. Disc florets 20–100; corollas 5–7 mm. Cypselae oblong, 3.5–4.5 mm, 4-angled, faces striate, sericeous; pappi tawny, 5–7 mm.
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- cc-by-nc-sa-3.0
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
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Inglês
)
fornecido por eFloras
Donia lanceolata Hooker, Fl. Bor.-Amer. 2: 25. 1834; Haplopappus lanceolatus (Hooker) Torrey & A. Gray
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- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Pyrrocoma lanceolata
(
Inglês
)
fornecido por wikipedia EN
Pyrrocoma lanceolata is a species of flowering plant in the family Asteraceae known by the common name lanceleaf goldenweed.[1] It is native to western North America from central Canada to northeastern California to Colorado, where it grows in many types of habitat, including disturbed places and areas with wet, alkali soils. It is a widespread and variable plant. It is a perennial herb growing one or more stems up to about half a meter long. The stems are decumbent or upright, reddish, usually somewhat hairy to quite woolly, and glandular toward the ends of the stems. The largest leaves are at the base of the plant, each measuring up to 30 centimeters in maximum length. They are generally lance-shaped with sawtoothed edges. The inflorescence bears several, up to 50, flower heads lined with reddish to green phyllaries. Each contains yellow disc florets and ray florets. The fruit is an achene up to a centimeter long including its pappus.
References
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- Wikipedia authors and editors
Pyrrocoma lanceolata: Brief Summary
(
Inglês
)
fornecido por wikipedia EN
Pyrrocoma lanceolata is a species of flowering plant in the family Asteraceae known by the common name lanceleaf goldenweed. It is native to western North America from central Canada to northeastern California to Colorado, where it grows in many types of habitat, including disturbed places and areas with wet, alkali soils. It is a widespread and variable plant. It is a perennial herb growing one or more stems up to about half a meter long. The stems are decumbent or upright, reddish, usually somewhat hairy to quite woolly, and glandular toward the ends of the stems. The largest leaves are at the base of the plant, each measuring up to 30 centimeters in maximum length. They are generally lance-shaped with sawtoothed edges. The inflorescence bears several, up to 50, flower heads lined with reddish to green phyllaries. Each contains yellow disc florets and ray florets. The fruit is an achene up to a centimeter long including its pappus.
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- cc-by-sa-3.0
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- Wikipedia authors and editors
Pyrrocoma lanceolata
(
Vietnamita
)
fornecido por wikipedia VI
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Pyrrocoma lanceolata: Brief Summary
(
Vietnamita
)
fornecido por wikipedia VI
Pyrrocoma lanceolata là một loài thực vật có hoa trong họ Cúc. Loài này được (Hook.) Greene miêu tả khoa học đầu tiên năm 1894.
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- cc-by-sa-3.0
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- Wikipedia tác giả và biên tập viên