dcsimg

Comprehensive Description

provided by North American Flora
Perityle lineariloba Rydberg, sp. nov
A suffruticose perennial; stems decumbent, about 3 dm. long; branches grayish-puberulent; leaves mostly opposite; petioles slender, 1-2 cm long; blades 2-3 cm. long, very thin, triangular in outline, pinnately 3-5-divided, finely puberulent and slightly glandular-granulif erous ; divisions entire, linear or nearly so, or cleft into linear divisions; peduncles slender, 5-10 cm. long; involucre hemispheric or slightly turbinate, 4 mm-, high, 5-7 mm. broad; bracts puberulent, lanceolate, acute; ray-flowers 10-15; ligules white, oblong, 4 mm. long; disk-corollas 2 mm. long; tube slightly shorter than the cylindro-campanulate throat; style-appendages short-subulate; achenes oblong-obovate, 1.5 mm. long, pubescent on the faces and the callous margins; pappus of a crown of lanceolate squamellae and one minute awn not more than twice as long as the hairs.
Type collected at San Ramon, Durango, April 21-May 18, 1906, Edward Palmer 89 (herb. N. Y. Bot. Card.).
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bibliographic citation
Per Axel Rydberg. 1914. (CARDUALES); CARDUACEAE; HELENIEAE. North American flora. vol 34(1). New York Botanical Garden, New York, NY
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