PEA FAMILY 



609 



ovoid, 5-7 mm. long, short-beaked, straight, white-villous, lower suture broadly and shallowly 

 sulcate, cordate in cross-section. 



Hills and plains, Arid Transition Zone; eastern Washington to northeastern California and western Idaho. 

 Type locality: "Clearwater" River, Idaho. May-July. 



133. Astragalus Austiniae A. Gray. Austin's Locoweed. Fig. 2907. 



Astragalus Austiniae A. Gray, Bot. Calif. 1: 156. 1876. 



Cespitose perennial, the stems rarely over 2-5 cm. long, densely white-silky. Leaves about 



3 cm. long including the slender elongated petiole; leaflets 9-17, narrowly elliptic-lanceolate, 

 acute and apiculate, 5-10 mm. long, silky-pubescent ; peduncle slender, longer than the leaves ; 

 racemes subcapitate, 6-12-flowered ; calyx-tube campanulate, white-villous, 3 mm. long, the 

 teeth subulate, equaling the tube ; corolla ochroleucous, 6 mm. long, scarcely surpassing the calyx- 

 teeth; pod ovoid, chartaceous, 4 mm. long, almost circular in cross-section, hoary-pubescent. 



Dry rocky ridges, northern Sierra Nevada, California. Type locality: summit of Mount Stanford (Castle 

 Peak), Nevada County, California. June-Aug. 



134. Astragalus Lyallii A. Gray. Lyall's Locoweed. Fig. 2908. 



Astragalus Lyallii A. Gray, Proc. Amer. Acad. 6: 195. 1865. 

 Phaca Lyallii Piper, Contr. U.S. Nat. Herb. 11: 370. 1906. 

 Tragacantha Lyallii Kuntze, Rev. Gen. PI. 2: 943. 1891. 



Perennial, from a stout woody root, the stems several, 1-3 dm. high, ascending, whole plant 

 cinereous or hoary with a more or less dense villous pubescence with mostly ascending hairs. 

 Leaflets 15-21, narrowly elliptic to linear-lanceolate, 5-15 mm. long, acute; peduncles slender, 

 4-7 cm. long; fruiting racemes 4-8 cm. long; flowers scattered, somewhat secund, reflexed; 

 calyx-tube short-campanulate, 1.5 mm. long, densely white-villous, the teeth filiform-subulate, 



4 mm. long ; corolla yellow or white, 7 mm. long ; pod ovoid, 6-7 mm. long, triangular-cordate 

 in cross-section, densely white-villous. 



Sandy or gravelly soils, Upper Sonoran Zone; Kittitas and Yakima Counties, Washington, to Elmore County, 

 Idaho. Type locality: "Upper Yakima River," Washington. May-July. 



135. Astragalus lentiformis A. Gray. Lens-pod Locoweed. Fig. 2909. 



Astragalus lentiformis A. Gray, Bot. Calif. 1: 156. 1876. 

 Tragacantha lentiformis Kuntze, Rev. Gen. PI. 2: 943. 1891. 



Perennial from a woody root, the stems several from the crown, prostrate, much branched, 

 1-3 dm. long, slender, hoary with appressed-villous pubescence. Leaflets 11-15, obovate to oblong- 

 spatulate, 6-10 mm. long, retuse, silky-villous ; peduncles many, 1-2 cm. long ; racemes usually 

 longer than the peduncles, several to many-flowered, calyx-tube bowl-shaped, arched, 2 mm. long, 

 woolly, the teeth subulate, scarcely equaling the tube ; corolla white, about 5 mm. long ; pods 

 broadly oblong, 6 mm. long, 3-4 mm. high, woolly-pubescent, lenticular, lower suture slightly 

 sulcate. 



Sagebrush-covered hills. Upper Sonoran Zone; eastern Oregon (Crook County) to northeastern California 

 (Sierra County). Type locality: "Sierra Nevada, in Clover Valley," Sierra County, California. May-Aug. 



Astragalus Peckii Piper, Proc. Biol. Soc. Wash. 37: 92. 1924. Leaflets acute, the terminal one but poorly 

 developed, strigose-canescent; pods strigose, 7 mm. long, acute at both ends. Known only from the type locality, 

 McKenzie Pass, Crook County, and from Deschutes River (Cusick), Oregon. 



136. Astragalus Lemmonii A. Gray. Lemmon's Locoweed. Fig. 2910. 



Astragalus Lemmonii A. Gray, Proc. Amer. Acad. 8: 626. 1873. 

 Tragacantha Lemmonii Kuntze, Rev. Gen. PI. 2: 943. 1891. 



Perennial, from a somewhat fleshy taproot, the stems usually many from the crown, slender, 



2903 



2904 



2905 



2903. Astragalus Mortonii 



2904. Astragalus striatus 



2905. Astragalus goniatus 



