Prenanthes alba Linnaeus (Q6250)
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Prenanthes alba is a synonym of Nabalus albus (Linnaeus) Hooker
| Language | Label | Description | Also known as |
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| English |
Prenanthes alba Linnaeus
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Prenanthes alba is a synonym of Nabalus albus (Linnaeus) Hooker
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Statements
taxon/id/Prenanthes alba Linnaeus
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100–200 m
100 meter
200 meter
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CA-MB
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CA-ON
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CA-QC
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CA-SK
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US-AR
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US-CT
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US-DE
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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-KY
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US-ME
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US-MD
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US-MA
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US-MI
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US-MN
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US-MO
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US-NH
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US-NJ
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US-NY
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US-NC
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US-ND
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US-OH
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US-PA
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US-RI
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US-SD
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US-TN
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US-VT
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US-WV
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US-WI
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taproots short and thickened, fibrous.
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Stems erect, often mottled purple or nearly all purple (often with stout bases, 8–12 mm diam.), proximally glabrous, tomentulose distally.
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Leaves: proximal present at flowering;
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petioles narrowly winged (to 18 cm);
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blades usually ovate to triangular or cordate, 4–30 × 3–18 cm, thin to coriaceous, bases often hastate, margins usually coarsely dentate or serrate, sometimes deeply 3-lobed or parted, lobes acute, faces glabrous adaxially, pale to whitish and sometimes hirsute abaxially;
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Heads (3–8, in clusters) in paniculiform arrays (densest near apices).
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Involucres cylindric to campanulate, 13–15 × 3–5 mm.
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Calyculi of 5–7, triangular to lanceolate bractlets 1–3 mm, glabrous.
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Phyllaries (6–) 8 (–9), ± purplish or maroon, lanceolate, 10–13 mm, margins scarious, minutely ciliate, apices acute, faces glabrous.
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Florets 7–9 (–13);
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corollas whitish to pale-pink, lavender or red, 9–15 mm.
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Cypselae brown or tan, elliptical to linear, 3.5–6 mm;
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pappi usually reddish-brown, sometimes rusty, rarely yellowish, 6–7 mm. 2n = 32.
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usually ovate
triangular or cordate
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