Prenanthes alata (Hooker) D. Dietrich (Q6249)
Prenanthes alata is a synonym of Nabalus alatus Hooker
| Language | Label | Description | Also known as |
|---|---|---|---|
| English |
Prenanthes alata (Hooker) D. Dietrich
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Prenanthes alata is a synonym of Nabalus alatus Hooker
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Statements
taxon/id/Prenanthes alata (Hooker) D. Dietrich
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CA-AB
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CA-BC
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US-AK
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US-WA
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taproots slender to thickened, tuberous.
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Stems 1 (–10), erect or ascending, green to purple, usually simple, glabrous or glabrate proximally, tomentulose distally.
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Leaves: proximal present at flowering;
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petioles winged (2–6 cm);
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blades triangular to irregularly elliptic, 3–25 × 1–7 cm, thin or slightly coriaceous, bases abruptly constricted, truncate to slightly hastate, margins irregularly dentate or coarsely serrate, apices acute to acuminate, faces glabrate;
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distal sessile, ovate to lanceolate, reduced.
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Heads (10–17) in broad, corymbiform arrays, lateral branches often elongate and overtopping main-stems.
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Involucres narrowly campanulate, 10–13 × 5–6 mm.
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Calyculi of 2–3, dark green, lanceolate or subulate bractlets 1–3 mm, glabrous or finely tomentulose.
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Phyllaries 8, green to dark green, lanceolate, 8–11 mm, margins scarious, apices acute, finely tomentulose.
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corollas white to purplish, 9–16 mm.
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Cypselae brown to light tan, subcylindric, 4–7 mm, weakly 7–10-ribbed;
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pappi pale-yellow to dull white, 8–10 mm. 2n = 16.
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triangular
irregularly elliptic
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