247 Galegiformes. 
Leaf rachis conspicuously tapering. Leaflets oval to narrowly 
elliptical, 8-15 pairs, rather thin, 10-15 mm. long, about con- 
tiguous, rounded and obtuse. Upper leaves nearly all sessile, 
7-10 cm. long. Stipules long-acuminate. 
Pubescence shaggy. 210 Drummondii. 
_ 208. Astragalus racemosus Pursh Fl. 740 (1814). A. galegioides 
Nutt. Tium Rydberg. Pods 2-3 cm. long, about 5 mm. high, and 4 mm. 
wide, opening first at base and along the ventral suture, shining, very 
faintly reticulated, abruptly acute at tip and rather tapering at base, 
young pods decidedly more arched ventrally, butthesuture sometimesa 
little concave with age and the tip nearly in line with it, cross section 
triquetrous with concave sides to oblately deltoid, dorsal suture not 
evident externally but raised as a thin edge within, ventral suture 
sharp and narrow. Stipe not longer than calyx, about 2 mm. long, 
bent near the middle and with a knob but not jointed. Flowers 
very many in dense spike-like racemes, purple-tipped to white, with 
snake-like odor, 12-20 mm. long, rather narrow. Blades of petals 
8-10 mm. long and with exserted claws. Banner arched to erect 
or less in gentle are beyond calyx tips, oblanceolate, faintly purple- 
veined, little longer than the wings, seeming very narrow from the 
sides being much reflexed. Wings 2 mm. wide, lanceolate to lin- 
ear-oblanceolate, 2 mm. shorter than banner, rounded, wider at tip, 
not arched,’ narrower and a little longer than keel. Keel obliquely 
lanceolate-oblong, the tip gently rounded to 30-60°, 7 mm. long, 3 . 
mm. high. Calyx tube short-cylindrie, 4 mm. long, about 3 mm. high 
and 2 mm. wide, a little arched, not narrowed below, truncate at 
base and gibbous. Teeth setaceous and variable.  Pedicels nearly 
filiform (except in one variety) 2 mm. long. Bracts hyaline, never 
shorter than the pedicels, rather déciduous, with thread-like tips, 
variable, 2-10 mm. long. Peduncles 5-16 cm. long, shorter than 
the leaves, with the floral rachis 5-10 cm. long in flower and often: 
a foot long in fruit, the spikes very dense and wide. Leaves not 
over 1.5 dm. long, the upper the largest, rather stout.  Petioles 
rarely 2 cm. long, almost none above. Leaf rachis tapering and 
stout. Leaflets 10-16 pairs, 1-2 em. long, 3-7 mm. wide, lanceolate- 
elliptical to ovate-elliptieal or nearly linear, sub-alternate, contigu- 
uous, leathery, truncate to rounded and apiculate, ashy with small, - 
flat and closely appressed hairs. Stipules lanceolate to triangular- 
subulate, very broad at base and connate below, often 15 mm. long. 
Stems stout, erect, 2-3 ft. high, sulcate, flexuous, with internodes 
4-7 cm. long, several from a several crowned, erect, stout root. 
Grows on poor and mostly clay soil on the Plains from the Canadian 
Pacific R. R. southward to central Mexico, eastward into Nebraska. 
Not on the Pacific or Great Basin drainage. Middle and Lower Tem- 
rate life zone. 
m Astragalus racemosus var. brevisetus Jones Cont. 7 662 (1894). 
Bracts ovate-subulate, about 2 mm. long. Calyx teeth 2 mm. long 
and tube gibbous above, broadly oblong in outline, 3 mm. long, 2 mm. 
high, spurred. Pedicels 2 mm. long in flower, stout, longer than the 
baste e a aont 20 paire Hoary plants. This grows on the 
southern Plains, Nebraska to Texas. - EC er. 
Astragalus racemosus var. longisetus Jones Cont. 7 663 (1895). 
Bracts very long-setaceous, as long as calyx tube. Calyx teeth seta- 
ceous and long. Leaflets about 2 cm. long and 7 mm. wide, elliptical. 
Stipules large and reflexed. Plants mostly robust. On the northern 
Plains from Colorado to Alberta. pano una 
. 203. Astragalus scopulorum Porter Fl. Col. 24 (1874). A. 
 Subcompressus Gray, A. rasus Sheldon, Tium Rydberg. Pods with 
body about 2.5-3 cm. long, 5-7 mm. high, and 4 mm. wide, very 
ortly-racemose-spieate, acuminate at base into a ‘slender stipe B 
