Crepis occidentalis Nuttall (Q3084)
Crepis occidentalis is a taxon with the rank species within the genus Crepis
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Crepis occidentalis Nuttall
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Crepis occidentalis is a taxon with the rank species within the genus Crepis
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Statements
taxon/id/Crepis occidentalis Nuttall
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Crepis occidentalis Nuttall
Crepis occidentalis
Nuttall
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-SK
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US-AZ
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US-CA
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US-CO
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US-ID
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US-MT
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US-NM
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US-NV
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US-OR
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US-SD
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US-UT
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US-WA
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US-WY
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taproots deep, caudices swollen, (often covered with old leaf-bases).
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Stems 1–3, erect, stout, branched from bases or beyond, hispid, tomentose, or tomentulose, sometimes stipitate-glandular distally.
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blades elliptic, runcinate, (5–) 8–20 × 2–5 cm, margins pinnately-lobed to sinuously dentate (lobes broadly lanceolate, often dentate), apices acute or acuminate, faces gray-tomentose, sometimes stipitate-glandular.
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Heads 2–30, in loose corymbiform arrays.
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Calyculi of 6–8, lanceolate or linear, glabrate to tomentose bractlets 2–6 mm.
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Involucres cylindric, 11–19 × 5–10 mm.
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Phyllaries 7–13, lanceolate, 12–15 mm, (bases thickened, keeled, margins green, often scarious) apices acute or acuminate, abaxial faces gray-tomentose, sometimes setose (setae black or greenish) or stipitate-glandular, adaxial glabrous or with fine hairs.
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corollas yellow, 18–22 mm.
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Cypselae golden or dark-brown, subcylindric, 6–10 mm, apices tapered (not beaked), ribs 10–18, strong and rounded;
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2n = 22, 33, 44, 55, 66, 77, 88.
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stipitate-glandular
sometimes; distally
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pinnately-lobed
sinuously dentate
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stipitate-glandular
sometimes
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