San Nicholas Biscuitroot

Lomatium insulare (Eastw.) Munz, Man. S. Calif. Bot 358. 1935.
Peucedanum insulare Eastw. Proc. Calif. Acad. III. 1: 106. 1898. Euryptera insularis Coult. & Rose, Contr. U. S. Nat. Herb. 7: 243. 1900. Cogswellia insularis M. E. Jones, Contr. W. Bot. 12: 31. 1908.
Plants acaulescent, 1-4 (?) dm. high, from a long stout taproot, glabrous; leaves ovate to obovate in general outline, excluding the petioles 6-9 cm. long, 2-3-ternate to biquinate, then pinnate, the ultimate divisions oblong to ovate-oblong, cuneate, 4-14 mm. long, 2-8 mm. broad, irregularly pinnatifid; petioles 2.5-3 cm. long, sheathing below; peduncles stout, exceeding the leaves; involucel of filiform bractlets, exceeding the flowers; rays 15-20, spreading, 3.5-8 cm. long, subequal; pedicels 6-12 mm. long, the umbellets many-flowered; flowers yellow; fruit oblong-ovate, 12-15 mm. long, 7-10 mm. broad, emarginate at base and apex, the wings thick, about equaling the body; oil-tubes 2 in the intervals, 4 on the commissure, rarely 1 in the wings.
Type locality: "Sand cliffs overhanging briny arroyas. San Nicholas Island," California, Trask. Distribution: Known only from the type locality (Howell S207 , Trask 51):