Tephroseris frigida (Richardson) Holub (Q2955)
Tephroseris frigida is a taxon with the rank species within the genus Tephroseris
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Tephroseris frigida (Richardson) Holub
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Tephroseris frigida is a taxon with the rank species within the genus Tephroseris
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Statements
taxon/id/Tephroseris frigida (Richardson) Holub
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Tephroseris frigida (Richardson) Holub
Tephroseris frigida
(Richardson) Holub
FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 20: Magnoliophyta: Asteridae, part 7: Asteraceae, part 2. Oxford University Press, New York.
accepted
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CA-BC
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Straley, G.B., D.V. Meidinger & G.W. Douglas. 1989-1994. The Vascular plants of British Columbia. BC. Ministry of Forests, Victoria. 4 vols.
CA-NT
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Porsild, A.E. & W.J. Cody. 1980. Vascular Plants of the Continental Northwest Territories, Canada. National Museum of Natural Sciences, Ottawa, Ont. 667 pp.
CA-NU
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Aiken, S.G., M.J. Dallwitz, L.L. Consaul, C.L., McJannet, R.L., Boles, G.W. Argus, J.M. Gillett, P.J. Scott, R. Elven, M.C. LeBlanc, L.J. Gillespie, A.K. Brysting, H. Solstad & J.G. Harris. 2007. Flora of the Canadian Arctic Archipelago: Descriptions, Illustrations, Identification, and Information Retrieval. [CD-ROM] NRC Research Press, National Research Council of Canada, Ottawa.
CA-YT
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Cody, W.J. 2000. Flora of the Yukon Territory. 2nd ed. National Research Press, Ottawa. 669 pp.
CA-BC
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CA-NT
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CA-NU
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CA-YT
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US-AK
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Stems loosely clustered.
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Leaves basal and cauline (basal leaves often withering before flowering);
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petioles weakly winged or unwinged, 2–4 cm;
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blades ovate, 1.5–3 × 1–2 cm, margins subentire or wavy-denticulate, weakly revolute (proximal similar, petioles winged, usually 1–3 cm; mid and distal leaves 2–5, sessile, bractlike).
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Involucres tapering to peduncles.
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Ray-florets usually (8) 13 or 21;
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corolla laminae usually 9–15 mm, rarely 0 or to 2–3 mm.
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Disc-florets 30–50+;
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Cypselae glabrous;
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