Comprehensive Description
provided by North American Flora
Cystium lentiginosum (Dougl.) Rydb. Bull Torrey Club 40:50. 1913.
Astragalus lentiginoses Dougl.; Hook. Fl. Bor. Am. 1: 151. 1831.
Tragacanlha lenliginosa Kuntze, Rev. Gen. 946. 1891.
Cystium salinum Rydb. Fl. Rocky Mts. 492. 1917. Not Astragalus salinus Howell. 1893.
Astragalus lenliginosus scorpionis M. E. Jones, Rev. Astrag., in part, 124. 1923.
Astragalus lenliginosus carinatus M. E. Jones, Rev. Astrag. 125. 1923.
A cespitose perennial; stem decumbent or ascending, 1-3 dm. high, slender, glabrous or sparingly strigose; leaves ascending, 4-7 cm. long; stipules lanceolate, 2-3 mm. long; leaflets 13-17, obovate or oval, 6-10 mm. long, glabrous or with scattered hairs on the margins and midribs, obtuse at the apex; peduncles 2-4 cm. long; racemes dense, 1-2 cm. long; bracts lanceolate, 1-2 mm. long; calyx strigose, sometimes more or less black-hairy, the tube 2.5-3 mm. long, the teeth subulate, 1-2 mm. long; corolla white, 8-10 mm. long; banner oblanceolate, moderately arched ; wings shorter, obliquely oblong-oblanceolate, with a rather long auricle ; keel-petals shorter, lunate; pod thin, about 1.5 cm. long, 6-9 mm. thick, strongly arcuateinflexed, strigulose.
Type locality: Blue Mountains, Oregon.
Distribution: Oregon and Idaho.
- bibliographic citation
- Per Axel Rydberg. 1919. (ROSALES); FABACEAE; PSORALEAE. North American flora. vol 24(1). New York Botanical Garden, New York, NY