Adobe Desertparsley

Lomatium concinnum (Osterhout) Mathias, Ann. Mo. Bot Gard. 25:276. 1937.
Cogswellia concinna Osterhout, Muhlenbergia 8: 44. 1912.
Plants short-caulescent, 1.2-2.5 dm. high, purplish below, from a long slender taproot, glabrous; leaves oblong in general outline, excluding the petioles 2-7 cm. long, bipinnate with the lower leaflets sometimes pinnately lobed, the ultimate divisions distinct, linear, 2-11 mm. long, 1-2 mm. broad, rounded at the apex, sometimes apiculate; petioles 1.5-5.5 cm. long, sheathing below; peduncles exceeding the leaves; involucel of conspicuous, dimidiate, foliaceous, ovate-lanceolate, acute bractlets, entire or rarely lobed toward the apex, usually manynerved, connate below, equaling or exceeding the flowers; rays 8-13 (the fertile 5-6), spreading, 2.5-4 cm. long, subequal; pedicels 1-2 mm. long, the umbellets many-flowered; flowers yellow; fruit ovate, 5-8 mm. long, 4-5 mm. broad, the wings less than one-half the width of the body; oil-tubes 4 or 5 in the intervals, about 10 on the commissure.
Type locality: Paeonia, Delta County, Colorado, Osterhout 4515. Distribution: Southwestern Colorado (Baker 22, Pur pus 587).