Great Basin Desertparsley

Lomatium simplex (Nutt.) F. Macbr. Contr. Gray Herb. 56:
34. 1918.
Peucedanum triternatum* var. 1 plalycarpum Torr. in Stansb. Expl. Utah 389. 1852.
Peucedanum simplex Nutt.; S. Wats. Bot. King's Expl. 129. 1871.
Lomatium platycarpum Coult. & Rose, Contr. U. S. Nat. Herb. 7: 226, in part. 1900.
Cogswellia platycarpa M. E. Jones. Contr. W. Bot. 12: 32. 1908.
Cogswellia simplex M. E. Jones, Bull. Univ. Mont. Biol. 15: 41. 1910.
Plants caulescent or acaulescent, 2-6 dm. high, clustered from a long slender taproot, the stems usually simple, few-leaved, densely puberulent; leaves obovate in general outline, excluding the petioles 1 1-20 cm. long, biternate, the ultimate divisions linear, acute, 25-1 15 mm. long, 3-6 mm. broad, glabrous above, glabrous to densely puberulent below; petioles 6-14 cm. long, sheathing to near the middle, glabrous to puberulent ; involucel of linear or filiform, acute to acuminate, glabrous or puberulent bractlets, shorter than the pedicels; rays 8-17, spreading to ascending, 1.5-5.8 cm. long, unequal; pedicels 1-9 mm. long, the umbellets 10-30-flowered;
* "citernatum," an orthographic error. flowers yellow; fruit broadly oblong to suborbicular, 7-14 mm. long, 7-10 mm. broad, glabrous, the wings broader than the body; oil-tubes solitary in the intervals, 2 on the commissure.
Type locality: "Rocky Mountains," Nultall.
Distribution: Western Montana to central Washington, south to southwestern Colorado, Utah, and central Oregon {Macbride 1722, Payson & Payson 4866).

Lomatium simplex là một loài thực vật có hoa trong họ Hoa tán. Loài này được (Nutt. ex S. Watson) J.F. Macbr. mô tả khoa học đầu tiên năm 1918.