Stenotus armerioides Nuttall (Q2411)
Stenotus armerioides is a taxon with the rank species within the genus Stenotus
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Stenotus armerioides Nuttall
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Stenotus armerioides is a taxon with the rank species within the genus Stenotus
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Statements
taxon/id/Stenotus armerioides Nuttall
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Stenotus armerioides Nuttall
Stenotus armerioides
Nuttall
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-SK
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US-AZ
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US-CO
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US-KS
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US-MT
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US-ND
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US-NM
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US-NE
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US-SD
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US-UT
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US-WY
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Plants cespitose, sometimes densely so, 2–29 cm;
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Stems proximally clothed with marcescent leaves, usually glabrous, sometimes sparsely scabrous, usually viscid, sometimes eglandular.
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narrowly petiolate;
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blades, 1-nerved or 3-nerved, linear to narrowly oblanceolate or spatulate, 17–90 × 1–7 (–12) mm, rigid, attenuate, margins sometimes ciliate (often minutely), viscid-glandular veins conspicuously raised abaxially, apices acute, faces ± scabrous or glabrous, gland-dotted, viscid.
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Peduncles 10–130 mm, smooth and viscid.
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Involucres campanulate to hemispheric, 8–21 × 6–14 mm.
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Phyllaries 12–26 in 3 series, 1- (or 3) -nerved (often ± keeled), strongly unequal, outer ovate to oblong, 3–8 × 1.5–4 (–7.5) mm, inner oblong, 5.5–10 × 1.5–3.5 mm, proximally indurate, distally chartaceous, green portions about as long as broad, margins scarious, sometimes broadly so, entire, apices obtuse to rounded, minutely apiculate, viscid abaxially.
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Ray-florets 5–15;
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laminae elliptic to oblong, 5.5–18.5 × 2–6 mm.
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Disc-florets 21–39;
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corollas funnelform to vase-shaped, 4–9 mm, tubes glabrous or rarely sparsely hairy, lobes 0.7–1.3 mm, ca. 1/8–1/6 length of corollas;
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anthers 1.8–3.5 mm, style-branch appendages subulate to lanceolate, 1.2–2.3 × 0.5 mm, stigmatic lines 0.6–1.9 mm, 1/2–3/4 as long as style-branch appendages.
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Cypselae 2–6 mm, lengths 1/2–3/4 disc corollas, faces sericeous;
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pappus bristles 60–75, 3.5–7.5 mm, nearly equaling disc corollas.
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narrowly oblanceolate or spatulate
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1/8 length of corollas
1/6 length of corollas
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