Gamochaeta Weddell (Q2677)
Gamochaeta is a taxon with the rank genus within the tribe Gnaphalieae
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Gamochaeta Weddell
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Gamochaeta is a taxon with the rank genus within the tribe Gnaphalieae
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Statements
taxon/id/Gamochaeta Weddell
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Gamochaeta Weddell
Gamochaeta
Weddell
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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Stems 1+, usually erect, sometimes decumbent-ascending.
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blades mostly linear to oblanceolate or spatulate, bases cuneate to ± cordate, margins entire, sometimes sinuate, abaxial faces mostly white or gray and tomentose or pannose-tomentose, adaxial green and glabrescent or glabrous, or grayish and arachnose, loosely tomentose, or subpannose.
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Heads disciform, usually in glomerules borne in continuous or interrupted, usually spiciform, sometimes paniculiform, arrays (reduced to terminal glomerules in depauperate individuals).
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Involucres narrowly to broadly campanulate, 2.5–5 mm.
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Phyllaries in 3–7 series, unequal, mostly brownish to stramineous, sometimes purplish, hyaline, often shiny, distally chartaceous to scarious, eglandular.
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Receptacles flat (concave in fruit), glabrous, epaleate.
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Pistillate florets 50–130, more numerous than bisexual florets;
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corollas all yellow or purplish-tipped.
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Bisexual florets 2–7;
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corollas all yellow or distally purplish.
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Cypselae oblong, slightly flattened, faces with papilliform hairs (myxogenic, their lengths about equaling diams.);
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pappi readily falling, of 12–28 barbellulate bristles in 1 series (basally connate in smooth rings, falling as units).
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decumbent-ascending
sometimes
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mostly linear
oblanceolate or spatulate
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