Eutrochium dubium (Willdenow ex Poiret) E. E. Lamont (Q2602)
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Eutrochium dubium is a taxon with the rank species within the genus Eutrochium
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Eutrochium dubium (Willdenow ex Poiret) E. E. Lamont
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Eutrochium dubium is a taxon with the rank species within the genus Eutrochium
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Statements
taxon/id/Eutrochium dubium (Willdenow ex Poiret) E.E. Lamont
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Eutrochium dubium (Willdenow ex Poiret) E.E. Lamont
Eutrochium dubium
(Willdenow ex Poiret) E.E. Lamont
FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 21: Magnoliophyta: Asteridae, part 8: Asteraceae, part 3. Oxford University Press, New York.
accepted
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CA-NS
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Zinck, M. 1998. Roland's Flora of Nova Scotia. Nimber Publishing & Nova Scotia Museum. Halifax, N. S. 2 vols. 1297 pp.
CA-NS
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US-CT
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US-DE
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US-ME
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US-MD
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US-MA
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US-NH
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US-NJ
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US-NY
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US-NC
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US-PA
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US-RI
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US-SC
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US-VT
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US-VA
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Plants 40–120 (–170) cm.
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Stems usually purple-spotted, sometimes uniformly purple, solid, glabrous proximally, glandular-puberulent distally.
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petioles 7–25 mm, glabrous;
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blades usually ± 3-nerved, rarely pinnately veined, deltate-ovate or ovate to lanceovate, 5–16 × 2–8 cm, relatively thick and firm (often rugose), bases usually abruptly contracted to petioles, margins coarsely serrate, abaxial faces densely glanddotted and sparingly hirsute (at least on midribs and main veins), adaxial faces scabrous, glabrescent.
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Involucres often purplish, 6.5–9 × 2.5–5 mm.
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Phyllaries glabrous or sparsely hairy.
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Florets (4–) 5–9 (–10);
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corollas usually dark purple, rarely pinkish or white, 4.5–7 mm.
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Cypselae 3–4.5 mm. 2n = 20.
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glandular-puberulent
distally
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