Bigroot Springparsley

Cymopterus macrorhizus Buckl. Proc. Acad Phila. 1861:455. 1862.
Cvmopterus montanus var. pediinculalus M. E. Jones, Proc. Calif. Acad. II. 5: 686. 1895. Phellopterus macrorhizus Coult. & Rose, Contr. U. S. Nat. Herb. 7: 167. 1900.
Plants acaulescent or subcaulescent with the development of a pseudoscape, 5-25 cm. high, from fusiform to subglobose roots; leaves ovate-oblong in general outline, excluding the petioles 1.5-6.5 cm. long, 1-3 cm. broad, pinnate to bipinnate, pallid, somewhat fleshy, the leaflets entire to pinnately lobed, the lobes obtuse, usually mucronate, 1-3 mm. long, 1-2 mm. broad, confluent, sometimes minutely roughened on the margins; petioles 1.5-3 cm. long; peduncles longer than the leaves, 2.5-17 cm. long, usually minutely roughened at the base of the umbel; involucre wanting, or of one or more linear bracts; involucel of conspicuous, subcuneate bractlets which are lacerate-fringed at the apex, white with a dark central nerve, usually shorter than the flowers; fertile rays 1-6, spreading, 5-30 mm. long, glabrous or slightly roughened, the inner umbellets usually subsessile, sterile, the secondary rays 5-10 mm. long, the inner flowers sessile, sterile; pedicels 2 mm. long; flowers pinkish; fruit ovoid to ovoid-oblong, 4—9 mm. long, 3-8 mm. broad, the wings linear, about equaling the body; oiltubes 3-8 in the intervals, 4-10 on the commissure, accessory tubes occasionally present in the wing-base; seed-face slightly concave.
Type locality: Prairies north of Austin, Texas, Buckley. Distribution: Central Texas {Curtiss 1031, Reverchon ZOOS, Ruth 2).