Tanacetum bipinnatum (Linnaeus) Schultz-Bipontinus (Q2115)
Tanacetum bipinnatum is a taxon with the rank species within the genus Tanacetum
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| English |
Tanacetum bipinnatum (Linnaeus) Schultz-Bipontinus
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Tanacetum bipinnatum is a taxon with the rank species within the genus Tanacetum
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Statements
taxon/id/Tanacetum bipinnatum (Linnaeus) Schultz-Bipontinus
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Tanacetum bipinnatum (Linnaeus) Schultz-Bipontinus
Tanacetum bipinnatum
(Linnaeus) Schultz-Bipontinus
FNA Editorial Committee. 2006. Flora of North America north of Mexico. Volume 19: Magnoliophyta: Asteridae, part 6: Asteraceae, part 1. Oxford University Press, New York.
accepted
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CA-AB
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CA-BC
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CA-MB
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CA-NB
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CA-NL
Nfld. and Labr. (Nfld.)
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CA-ON
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CA-QC
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CA-SK
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CA-YT
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US-AK
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US-CA
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US-ME
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US-MI
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US-OR
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US-WA
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US-WI
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Stems (sometimes purple-tinged) 1–2+, ± decumbent to ascending or erect, branched.
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petiolate (bases often clasping) or sessile;
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blades ± ovate or elliptic to obovate or spatulate, mostly 7–25+ × 3–5 (–10+) cm, 2–3-pinnately lobed (primary lobes mostly 6–24+ pairs, narrowly oblong to linear-elliptic or linear, lobules oblong or ovate to ± lanceolate, sometimes curled), ultimate margins entire or ± dentate, faces usually ± villous or arachno-villous to lanate, sometimes glabrescent or glabrate, usually gland-dotted (in pits).
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Heads (2–) 5–12 (–20+) in corymbiform arrays or borne singly.
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Involucres 8–22+ mm diam.
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Receptacles flat to hemispheric.
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Ray-florets 8–21+ (pistillate, fertile; corollas pale-yellow to yellow, laminae mostly 1–7+ mm, usually 3-lobed) or 0 (heads quasi-radiant or radiate or ± disciform, peripheral pistillate florets 15–30+; corollas pale-yellow, ± zygomorphic, lobes 3–5, abaxial more pronounced).
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Disc corollas (2–) 3 (–4) mm.
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Cypselae 2–3 (–4) mm, weakly 5-ribbed or angled, gland-dotted;
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less decumbent
ascending or erect
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less ovate or elliptic
obovate or spatulate
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less villous or arachno-villous
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