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Cyclachaena pedicellata

Comprehensive Description

provided by North American Flora
Cyclachaena pedicellata Rydberg, sp. nov
A tall annual; stem 1 m. high or more, glabrous up to the inflorescence; lower leaves opposite, the upper ones alternate; petioles of the stem-leaves 8-15 cm. long; blades of the lower ones broadly ovate, 1-2 dm. long, dentate; those of the upper rhombic-ovate or rhombiclanceolate, long-acuminate, serrate or incised, scabrous-hirsutulous above, strigulose and only slightly paler beneath; heads very numerous, in axillary and terminal panicles, most of them on individual peduncles 4-12 mm. long; involucre broadly turbinate, 4 mm. broad; bracts 5, obovate, short-acuminate, sparingly hirsute on the back; paleae subtending the pistillate flowers broadly cuneate, about equaling the achenes, not hooded; those subtending the staminate flowers minute or wanting; staminate flowers 8-12; corolla funnelform, 2.5 mm. long; pistillate flowers 5; achenes nearly black, 3 mm. long.
Type collected at Santa Fe, New Mexico, September 1895, Isabel Mulford 1284 (herb. N. Y. Bot. Gard.^.
Distribution: New Mexico and western Texas.
license
cc-by-nc-sa-3.0
bibliographic citation
Per Axel, Rydberg. 1922. CARDUALES; AMBROSIACEAE, CARDUACEAE. North American flora. vol 33(1). New York Botanical Garden, New York, NY
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