Erigeron porsildii G. L. Nesom & D. F. Murray (Q2179)
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Erigeron porsildii is a taxon with the rank species within the genus Erigeron
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Erigeron porsildii G. L. Nesom & D. F. Murray
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Erigeron porsildii is a taxon with the rank species within the genus Erigeron
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Statements
taxon/id/Erigeron porsildii G.L. Nesom & D.F. Murray
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Erigeron porsildii G.L. Nesom & D.F. Murray
Erigeron porsildii
G.L. Nesom & D.F. Murray
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-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-YT
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Cody, W.J. 2000. Flora of the Yukon Territory. 2nd ed. National Research Press, Ottawa. 669 pp.
CA-NT
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CA-YT
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US-AK
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600–2100 m
600 meter
2,100 meter
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rhizomatous, fibrous-rooted, rhizomes horizontal or erect, sometimes branched, relatively short, sometimes resembling taproots.
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Stems erect, sparsely to moderately villous (hairs 0.5–1.6 mm), usually stipitate-glandular (hairs 0.05–0.4 mm).
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Leaves basal (persistent) and cauline;
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basal blades oblong-oblanceolate to narrowly obovate, 30–120 × (3–) 5–14 mm, margins entire (apices acute), faces densely hirsute to coarsely villous, sparsely stipitate-glandular to minutely glandular;
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cauline blades oblong-lanceolate to lanceolate, gradually reduced distally or nearly equal-sized (bases often subclasping).
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Involucres 6–10 × 12–20 mm.
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Ray-florets 65–110;
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corollas white to lavender or blue, 13–17 mm (1.2–1.7 mm wide), laminae weakly coiling.
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Disc corollas 3.8–4.5 mm.
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Cypselae 2–2.5 mm, 2-nerved, faces sparsely strigose;
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pappi: outer of relatively long setae or scales, inner of 14–20 (–25) bristles.
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villous
sparsely to moderately
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oblong-oblanceolate
narrowly obovate
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densely hirsute
coarsely villous sparsely stipitate-glandular
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densely hirsute
coarsely villous sparsely stipitate-glandular
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oblong-lanceolate
lanceolate
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