Family LEGUMINOSAZ 141 
Buffalo county; Cherry county; Fairmont; Hooker county; Lincoln; 
Mullen; Nelson; Plainview; Red Cloud. 
10. Robinia. 549. 
1. Robinia pseudacacia L. Black Locust. 
Escaped along streams in the southeastern part of the state. Lin- 
coln; Peru. 
11. Cracca. 548. 
1. Cracea virginiana L. Goat’s-rue. 
Rare in the southeastern part of the state. Fairbury. 
12. Oxytropis (Aragallus). 555. 
Scape 2-3 dm. high, many-flowered; pod exserted from the calyx, 
incompletely 2-celled. 1. O. lambertii. 
Scape 1-3 cm. long, 1-3 flowered; pod included in the calyx, 1-celled. 
2. O. multiceps. 
1. Oxytropis lambertii Pursh. Stemless Loco-weed. 
Common in the western part of the state; poisonous to stock. 
Banner county; Belmont; Box Butte county; Culbertson; Emerson; 
Minden; Pine Ridge; Thedford; Valentine. 
2. Oxytropis multiceps Nutt. 
Rare in the western part of the state. Banner county; Kimball 
county. 
13. Homalobus. 554. 
Flowers in spike-like racemes on axillary or scape-like peduncles. 
Leaves pinnate, leaflets 11-21;. flowers yellowish-white. 
1. H. tenellus. 
Leaves simple or 3-5 foliate; flowers purple. 3. H. cxspitosus. 
Flowers clustered in the axils, nearly sessile. 2. H. montanus. 
1. Homalobus tenellus (Pursh) Britton. 
In dry soil in the western part of the state. Scotts Bluff county; 
Sioux county. 
2. Homalobus montanus (Nutt.) Britton. 
Hills and bad-lands of the western part of the state. Belmont; 
Cheyenne county. 
3. Homalobus cespitosus Nutt. 
On dry hills and cliffs in the western part of the state. Banner 
county; Belmont; Harrison. 
14. Phaca. 553. 
1. Phaca longifolia (Pursh) Nutt. 
Common in sandy soil in the western part of the state. Banner 
county; Kennedy; Sioux county; Thedford; Valentine; War Bonnet 
canyon. 
15. Orophaca. 555. 
Flowers yellowish, sessile in the axils. 
Corolla glabrous outside; calyx teeth about half as long as the 
tube. 1. O. czxspitosa. 
Corolla pubescent on the outside; calyx teeth nearly as long as 
the tube. 2. O. argophylla. 
Flowers purplish; in peduncled axillary racemes. 3. O. sericea. 
