Comments
(
英語
)
由eFloras提供
D. D. Keck (1959c) said of Lasthenia gracilis (as Baeria chrysostoma subsp. gracilis), "The most abundant composite in the state [of California]." It is widespread throughout California, central Arizona, the Channel Islands, Guadalupe Island, and Baja California. It is variable and is sometimes similar to L. californica subsp. californica, from which it differs in its opaque, white, ovate-lanceolate, aristate pappus scales. Coastal forms of L. gracilis tend to have shorter, wider, fleshy leaves. Lasthenia gracilis often occurs with other Lasthenia species.
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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
Description
(
英語
)
由eFloras提供
Annuals, to 40 cm. Stems erect or decumbent, usually branched distally (sometimes proximally in desert forms), ± hairy (more so distally). Leaves linear to oblanceolate, 8–40(–70) × 1–3(–6) mm, (± fleshy in coastal forms) margins entire or with 3–5+ teeth, faces ± hairy. Involucres campanulate or hemispheric, 5–10 mm. Phyllaries (persistent or falling with cypselae) 4–13 (in 1 series), ovate-lanceolate to oblong, ± hairy. Receptacles conic, muricate, glabrous. Ray florets 6–13; laminae oblong, 5–10 mm. Anther appendages deltate. Cypselae black to gray, ± linear, to 3 mm, glabrous or hairy; pappi usually of (2–)4(–6) opaque, white (aging to brown), ovate-lanceolate, aristate scales, sometimes 0. 2n = 16, 32.
- 許可
- cc-by-nc-sa-3.0
- 版權
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
(
英語
)
由eFloras提供
Burrielia gracilis de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 5: 664. 1836; Baeria chrysostoma Fischer & C. A. Meyer subsp. gracilis (de Candolle) Ferris; B. gracilis (de Candolle) A. Gray
- 許可
- cc-by-nc-sa-3.0
- 版權
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Lasthenia gracilis: Brief Summary
(
英語
)
由wikipedia EN提供
Lasthenia gracilis, the needle goldfields, is an annual plant with yellow flowers that grows in California and Arizona in southwestern United States, and Baja California in northwestern Mexico. It is in the genus Lasthenia of the family Asteraceae.
Lasthenia gracilis: Brief Summary
(
越南語
)
由wikipedia VI提供
Lasthenia gracilis là một loài thực vật có hoa trong họ Cúc. Loài này được (DC.) Greene mô tả khoa học đầu tiên năm 1894.
