Comprehensive Description
provided by North American Flora
Caucalis microcarpa H. & A. Bot. Beech. Voy. 348. 1838
Daucus brachiatus Torr. Pacif. R. R. Rept. 4: 93. 1857.
Yabea microcarpa K.-Pol. Bull. Soc. Nat. Mosc. II. 28: 202. 1915.
Slender, S-40 cm. high, more or less hispid throughout or sometimes glabrescent; leaves oblong to ovate in general outline, excluding the petioles 2-6 cm. long, 2-5 cm. broad, pinnately decompound, the ultimate divisions linear to filiform, 2-8 mm. long, 0.2-2 mm. broad; petioles 25-35 mm. long, with a short, scarious-margined sheath; peduncles 2-10 cm. long; involucre of several pinnately decompound, foliaceous bracts; involucel of several foliaceous, pinnatifid or rarely entire bractlets, mostly shorter than the fruit; rays 1-9, ascending, unequal, 1-8 cm. long; pedicels 2-9, erect, unequal, 15 mm. long to obsolete; flowers white; fruit oblong, 3-7 mm. long, armed with rows of hooked bristles.
Type locality: California, Douglas.
Distribution: Idaho and British Columbia to the Pacific coast, south to Arizona, Sonora, and Baja California {Elmer 2766, Heller 5403).
- bibliographic citation
- Albert Charles Smith, Mildred Esther Mathias, Lincoln Constance, Harold William Rickett. 1944-1945. UMBELLALES and CORNALES. North American flora. vol 28B. New York Botanical Garden, New York, NY
