Comments
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Inglês
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fornecido por eFloras
The densely white-strigose stem bases, linear-filiform leaves relatively unreduced distally, and relatively few heads with coiling, usually blue rays are distinctive for Erigeron filifolius. Proximal leaves are not clustered as a basal rosette; they are inserted on closely spaced nodes that are slightly more separated distally. Plants identified as var. robustior (with more ray florets, fewer heads, and thicker stems, centered in Oregon and Washington) intergrade with the typical form and apparently are separated arbitrarily.
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Description
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Inglês
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fornecido por eFloras
Perennials, 10–30(–50) cm; taprooted, caudices multicipital, often with relatively short and thin, stemlike, lignescent branches. Stems erect, sparsely to densely strigose (hairs loosely appressed to ascending, fine), densely white-strigose at least proximally, eglandular. Leaves basal (usually persistent, not clustered as rosettes) and cauline; basal blades linear to filiform, 10–80 × 0.5–2.5(–3.5) mm, cauline gradually or little reduced distally, margins entire, faces sparsely to moderately strigose, eglandular. Heads 1–5(–10+) from distal branches, tending to be in corymbiform arrays. Involucres 4–7 × 5–-18 mm. Phyllaries in (2–)3–4 series, loosely strigose to hirsute or nearly villous, densely to sparsely minutely glandular. Ray florets (15–)20–125; corollas usually blue, sometimes white, pink, or pale lavender, 3–13 mm, laminae coiling. Disc corollas 2.5–5.5 mm. Cypselae 1.4–1.8(–2) mm, 2-nerved, faces sparsely strigose to glabrate; pappi: outer of setae, inner of 20–30 bristles. 2n = 18.
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Synonym
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Inglês
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fornecido por eFloras
Diplopappus filifolius Hooker, Fl. Bor.-Amer. 2: 21. 1834; Erigeron filifolius var. robustior M. Peck
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Erigeron filifolius
(
Inglês
)
fornecido por wikipedia EN
Erigeron filifolius is a North American species of flowering plants in the family Asteraceae known by the common names thread-leaf fleabane.[4]
Erigeron filifolius is widespread across much of western North America. It has been found in western Canada (British Columbia) and the western United States, primarily east of the crest of the Cascade Range of Washington, Oregon, and northern California extending eastward to southern Idaho and northeast Nevada. Within its distribution, it occupies a large range of elevations from near sea level to 2,400 m (8,000 ft).[5][6][7][8]
Erigeron filifolius is a branched perennial herb up to 50 cm (20 in) in height. Leaves are long and thin, often thread-like, up to 8 cm (3 in) long. Each stem sometimes produces only 1 flower head per stem, sometimes flat-topped clusters of 10 or more. Each head may contain as many as 125 white, blue, pink, or lavender ray florets surrounding numerous yellow disc florets.[4][9][10][11]
References
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^ Tropicos, Erigeron filifolius (Hook.) Nutt.
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^ Nuttall, Thomas 1840. Transactions of the American Philosophical Society, new series 7: 308 as Erigeron filifolium
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^ The Plant List, Erigeron filifolius (Hook.) Nutt.
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^ a b Flora of North America, Erigeron filifolius (Hooker) Nuttall, Thread-leaf fleabane
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^ Biota of North America Program 2014 county distribution map
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^ Calflora taxon report, University of California, Erigeron filifolius (Hook.) Nutt., threadleaf fleabane
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^ Sullivan, Steven. K. (2020). "Erigeron filifolius". Wildflower Search. Retrieved 2020-09-22.
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^ USDA, NRCS. (2020). "Erigeron filifolius". The PLANTS Database. National Plant Data Team, Greensboro, NC 27401-4901 USA. Retrieved 2020-09-22.
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^ Klinkenberg, Brian, ed. (2020). "Erigeron filifolius". E-Flora BC: Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. Retrieved 2020-09-22.
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^ Giblin, David, ed. (2020). "Erigeron filifolius". WTU Herbarium Image Collection. Burke Museum, University of Washington. Retrieved 2020-09-22.
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^ "Erigeron filifolius". in Jepson Flora Project (eds.) Jepson eFlora. Jepson Herbarium; University of California, Berkeley. 2020. Retrieved 2020-09-22.
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Erigeron filifolius: Brief Summary
(
Inglês
)
fornecido por wikipedia EN
Erigeron filifolius is a North American species of flowering plants in the family Asteraceae known by the common names thread-leaf fleabane.
Erigeron filifolius is widespread across much of western North America. It has been found in western Canada (British Columbia) and the western United States, primarily east of the crest of the Cascade Range of Washington, Oregon, and northern California extending eastward to southern Idaho and northeast Nevada. Within its distribution, it occupies a large range of elevations from near sea level to 2,400 m (8,000 ft).
Erigeron filifolius is a branched perennial herb up to 50 cm (20 in) in height. Leaves are long and thin, often thread-like, up to 8 cm (3 in) long. Each stem sometimes produces only 1 flower head per stem, sometimes flat-topped clusters of 10 or more. Each head may contain as many as 125 white, blue, pink, or lavender ray florets surrounding numerous yellow disc florets.
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- Wikipedia authors and editors
Erigeron filifolius
(
Vietnamita
)
fornecido por wikipedia VI
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Erigeron filifolius: Brief Summary
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Vietnamita
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fornecido por wikipedia VI
Erigeron filifolius là một loài thực vật có hoa trong họ Cúc. Loài này được (Hook.) Nutt. mô tả khoa học đầu tiên năm 1840.
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- Wikipedia tác giả và biên tập viên