Difference between revisions of "Prenanthes aspera Michaux (Q6252)"
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Latest revision as of 12:46, 24 June 2022
Prenanthes aspera is a synonym of Nabalus asper (Michaux) Torrey & A. Gray
Language | Label | Description | Also known as |
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Prenanthes aspera Michaux
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Prenanthes aspera is a synonym of Nabalus asper (Michaux) Torrey & A. Gray
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Statements
taxon/id/Prenanthes aspera Michaux
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50–600 m
50 meter
600 meter
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US-AR
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US-GA
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US-IL
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US-IN
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US-IA
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US-KS
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US-KY
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US-LA
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US-MN
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US-MS
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US-MO
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US-NE
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US-OH
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US-OK
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US-PA
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US-TN
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taproots fusiform, thickened, tuberous, with smaller lateral roots.
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Stems erect, green and mottled purple, glabrous proximally, midstems hispid or setose, scabrous to coarsely setose distally.
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Leaves: proximalmost usually withered by flowering;
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petiolate (midcauline sessile, clasping);
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blades spatulate, 4–11 × 2–5 cm, firm, coriaceous, brittle, bases attenuate, margins entire or weakly dentate, apices acute to obtuse, faces glabrate to roughly hispid abaxially;
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Heads in erect, racemiform or narrowly paniculiform arrays.
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Involucres cylindric to campanulate, 12–17 mm.
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Calyculi of 6–12, green, triangular to lanceolate bractlets 2–5 mm, coarsely setose.
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Phyllaries 6–10, yellow green to tan, linear-lanceolate, 8–15 mm, coarsely setose.
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corollas pale-yellow to creamy white, 9–17 mm.
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Cypselae tan, subcylindric, subterete, 5–6 mm, irregularly 10–12-ribbed;
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pappi pale-yellow or brown, 7–8 mm. 2n = 16.
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green and mottled purple
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setose scabrous
coarsely setose
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setose scabrous
coarsely setose
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