368 COiSTTRIBUTIOISrS FROM THE NATIONAL HERBARIUM. 



Leaves with 5 or more leaflets, some of them attached along the sides of the leaf stalk 

 Leaves with a tendril at the end. 



Flowers purple; leaflets green 9. VICIA. 



Flowers yellowish white; leaflets pale on the under side ... 10. LATHYRUS. 

 Leaves without tendrils. 



Leaflets dotted with glands; fruit covered with hooked prickles. 



5. GLYCYBRHIZA 



Leaflets not gland-dotted; fruit not prickly. 



Pods very flat, scalloped along the edges. Flowers pale yellow or purple. 



6. HEDYSARTJM. 



Pods not scalloped along the edges. 



Keel of the corolla blunt; flower stems usually leafy . . 7. ASTRAGALUS. 

 Keel of the corolla shar])-pointed ; flower stems not leafy. 8. OXYTROPIS. 



1. LTJPINTJS L. Lupine. 



Perennials, usually with silky pubescence; leaves with 5 to 15 narrow entire- 

 leaflets attached at the end of the leaf stalk; flowers in racemes, usually blue oj- 

 purple; pods flattened, hairy. , 



Plants low, 15 cm. high or less; leaves all basal 1. L. minimus. 



Plants taller, usually 30 to 60 cm. high, with leafy stems. 

 Leaflets glabrous on the upper surface. 



Leaflets flat; keel of the corolla hairy along the edges 2. L. scheuberae. 



Leaflets usually folded; keel glabrous 3. L. tenellus. 



Leaflets hairy on both surfaces. 

 Hairs of the stem spreading. 



Hairs of the stem equal in length, all short 4. L. sericeus. 



Hairs of the stem of 2 kinds, part of them long and part short. 



5. L. leucophyllus. 

 Hairs of the stem all appressed. 



Plants green, thinly silky 6. L. argenteus. 



Plants gray or whitish, densely silky. 



Bracts of the spikes awl-shaped, longer than the flower buds. 



7. L. fiexuosus. 



Bracts lanceolate, not longer than the buds 8. L. leucopsis. 



1. Lupinus minimus Dougl. Dwarf lupine. Open rocky slopes at Piegan Pass; 

 also on exposed rocky hilltop at east entrance. Wash, and Oreg. to Mont, and 

 Alta. — Stems 10 to 15 cm. high, densely tufted; leaflets 5 to 9, oblanceolate, 5 to 15 

 mm. long, densely silky; racemes short and dense; corolla 1 cm. long. 



2. Lupinus scheuberae Rydb. Frequent about east entrance, on open slopes or 

 in aspen thickets. Mont., Wyo., and Utah. — Stems 30 to 70 cm. high; leaflets 

 about 7, oblanceolate, 3 to 7 cm. long, acute or obtuse; corolla about 12 mm. long; 

 pods about 2 cm. long. 



3. Lupinus tenellus Dougl. Common on the east slope at low or even middle 

 altitudes, on open rocky hillsides or along streams. Wash, to Calif., Colo., and 

 Mont. — Plants 30 to 60 cm. high, much branched from the base and forming large 

 bushy clumps; leaflets linear or linear-oblanceolate, 1 to 4 cm. long, acute or obtuse; 

 corolla 10 to 12 mm. long, blue or purple; pod 3 to 5-seeded. 



One plant found along Appekunny Creek had pinkish white flowers. 



4. Lupinus sericeus Pursh. Rocky slopes of Altyn Peak. Oreg. to Wyo. and 

 S. Dak. — Plants 30 to 60 cm. high, much branched, whitish-hairy; leaflets 5 to 10, 

 oblanceolate, 3 to 6 cm. long, acute orjobtuse; corolla blue-purple, about 12 mm. 

 long; pods 4 to 6-seeded. 



5. Lupinus leucophyllus Dougl. Occasional on the east slope at low or middle 

 altitudes, on open hillsides or in aspen thickets. Wash, to Calif., Utah, and Mont. — 



