Adenophyllum cooperi (A.Gray) Strother

Cooper's dogweed (en)

Species

Angiosperms > Asterales > Asteraceae > Adenophyllum

Characteristics

Perennials or subshrubs, 30–50+ cm. Leaves mostly not lobed, blades oblanceolate to ovate, 8–25 × 4–8 mm (bases sometimes toothed or obscurely lobed, oil-glands 1–2 pairs near base, 1 near tip, each leaf). Peduncles 60–150 mm. Calyculi of 12–22 linear-attenuate, gland-bearing, bractlets 5–8 mm. Involucres campanulate to obconic, 15–18 mm. Phyllaries ca. 20, lanceolate to linear, separating in fruit. Ray florets (0–)7–13; corollas yellow-orange, becoming red-orange; tubes 5 mm, laminae 8–10 × 2.5–4 mm. Disc florets 50–80+; corollas yellow, 8–10 mm. Cypselae 5–7 mm; pappi of 15–20 scales 7–10 mm, each comprising 5–9, basally connate bristles. 2n = 26.
Life form perennial
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Sexuality hermaphrodite
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Hardiness (USDA) 5-10

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Cultivation

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Images

Adenophyllum cooperi unspecified picture

Distribution

Adenophyllum cooperi world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:943432-1
WFO ID wfo-0000061696
COL ID 9ZWS
BDTFX ID -
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Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Dyssodia cooperi Adenophyllum cooperi Lebetina cooperi Clomenocoma cooperi