PAPILIONACEAE. [Vor II. 
4. Astragalus Tennesseénsis A. Gray. 
Tennessee Milk Vetch. (Fig. 2128.) 
Astragalus Tennesseensis A. Gray; Chapm. Fl. 
S. States, 98. 1860. 
Astragalus Plattensis var. Tennesseensis A, Gray, 
Proc. Am. Acad. 6: 193. 1864. 
Stems erect or ascending from a deep root; 
plant villous with long whitish hairs. Leaflets 
15-31, oblong, or linear-oblong, obtuse, or 
emarginate, nearly glabrous above, 6’’—10// 
long, 2/’-4’’ wide; stipules lanceolate, oval, or 
ovate-lanceolate; peduncles about equalling 
the leaves; racemes short, several-many-flow- 
ered; flowers about 10’’ long; pod oblong, 2- 
celled, fleshy, 1’ long or rather more, strongly 
wrinkled, at least when dry, its summit 
strongly curved. 
On hillsides, Tennessee to Alabama and Mis- 
souri. March—May. 
5. Astragalus mollissimus Torr. Woolly Ss 2 SS: 
Loco-weed or Crazy-weed. (Fig. 2129.) SSA 
Phaca villosa James, Trans. Am. Phil. Soc. (II.) 2: ZA I 4 
186. 1825. Not Nutt. 1818. gale WZ 
Astragalus mollissimus Torr. Ann, Lye. 2: 178. 1826. SEF Se 
Ne Se 
Decumbent or ascending, stout, bushy, densely 
villous-pubescent, 1°-2° high. Stem very short; 
stipules membranous, ovate, pointed, 3/’-5’’ long, _( 
adnate to the petiole; leaflets 19-27, oval, obtuse, 
but pointed at the apex, narrowed or rounded at 
the base, 4/’-6’’ long, 2//-3/’ wide; peduncles 
equalling or exceeding the leaves; flowers violet- > Slee 
purple, 8’/-12/ long, in dense spikes; pod oblong, et Ae 
dry, cartilaginous, glabrous, dehiscent into 2 S\N sess ass 
valves, somewhat compressed, sessile, 2-celled, a \ | 
5//-10’ long, about 3/’ thick, furrowed at both 
sutures, slightly curved at maturity. 
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SS 
At 
Ms 
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Prairies, Nebraska and Colorado, south to Texas 
and New Mexico. June. The popular name of the 
plant is from its poisonous effects on cattle. 
6. Astragalus Carolinianus L. Carolina 
Milk Vetch. (Fig. 2130.) 
Astragalus Carolinianus L.. Sp. Pl. 757. 1753+ 
Astragalus Canadensis I,. Sp. Pl. 757-1753: 
Glabrous or slightly pubescent, erect or ascending, 
branched, 1°-4° high, Stipules membranous, broadly 
lanceolate, acuminate, 2//-4/’ long; leaflets 15-31, 
elliptic or oval, obtuse or slightly emarginate at 
the apex, rounded at the base, 1/2’ long, 3/’-9’’ wide; 
peduncles longer than the leaves, or shorter; flowers 
greenish yellow, 6’’/-S’’ long in dense thick spikes; 
pod sessile, 2-celled, coriaceous, dehiscent, glabrous, 
erect, terete, or sometimes slightly furrowed at the 
dorsal suture, pointed, nearly straight, 5’’-8’’ long. 
Along streams, Hudson Bay and Quebec to the Rocky 
Mountains, south to western New York, Georgia, Louisi- 
ana and Colorado, July-Aug. 
