Waxy Springparsley

Cymopterus glaucus Nutt. Jour. Acad. Phila. 7: 28. 1834
Aulospermum glaucum Coult. & Rose, Contr. U. S. Nat. Herb. 7: 176. 1900.
Plants subcaulescent with the development of a conspicuous pseudoscape, 3-30 cm. high, glabrous, the mature pseudoscape 2.5-15 cm. long; leaves oblong to ovate-oblong in general outline, excluding the petioles 1.5-9 cm. long, 1-7 cm. broad, bipinnate, somewhat fleshy, pallid, sometimes conspicuously glaucous, the leaflets remote, pinnately lobed, the lobes obtuse to acute, often mucronulate, 1 mm. long, about as broad, closely confluent; petioles 0.5-7 cm. long; peduncles exceeding the leaves, 1-14 cm. long; involucre of 1-several conspicuous, linearacuminate bracts; involucel similar to the involucre, equaling or exceeding the flowers; fertile rays 1-4, slightly spreading, 2-30 mm. long; pedicels 2-7 mm. long; flowers yellow; fruit oblong, 5-7 mm. long, about 3 mm. broad, the wings narrow at the base, the lateral equaling or narrower than the body; oiltubes 3 or 4 in the intervals, about 6 on the commissure; seedface deeply concave.
Type locality: "On the borders of Flat-Head River towards the sources of the Columbia," Montana, Nultall.
Distribution : Western Montana and adjacent Idaho (Kirkwood 1222, Macbride &■ Pay son 3548) .