GENUS I, MILKWEED FAMILY. 
7- Asclepias pilchra Ehrh. Hairy Milk- 
weed. Fig. 33809. 
Asclepias pulchra Ehrh,; Willd. Sp. Pl, 1: 1267. 1798. 
A, incarnata var. pulchra Pers. Syn. 1: 276. 1805. 
Similar to the preceding species and perhaps hy- 
bridizing with it where the two grow together; 
stem stout, tomentose-pubescent, usually branched, 
2°-3%° high, leafy to the top. Leaves broadly lan- 
ceolate, acute, acuminate or some of them obtusish 
at the apex, subcordate, rounded, or the upper nar- 
rowed at the base, puberulent or glabrous above, 
pubescent, at least on the veins beneath, 3s’ long, 
3’-2’ wide; petioles usually stout and short; flowers 
similar to those of A. incarnata, but the corolla 
commonly lighter red or pink, rarely white; pedun- 
cles and pedicels tomentose; fruiting pedicels erect 
or incurved; follicles erect, densely pubescent, 2-3’ 
ong. 
In moist fields and swamps, Nova Scotia to Minne- 
sota, south to Georgia. WhiteIndian-hemp. July-Sept. 
8. Asclepias Sullivantii Engelm. Sulli- 
vant’s Milkweed. Fig. 3390. 
A, Sullivantii Engelm.; A. Gray, Man, 366. 1848. 
Glabrous throughout; stem stout, simple or 
sometimes branched above, 2°-4° high, leafy to 
the top. Leaves thick, sessile, or on petioles less 
than 1” long, oblong or ovate-oblong, usually 
obtuse and mucronulate at the apex, subcordate, 
rounded or slightly clasping at the base, 4’-6 
long, 14-3’ wide, the primary nerves very wide- 
spreading; umbels terminal and sometimes also 
in the upper axils, many-flowered; peduncles 
shorter than the leaves; corolla-segments oval- 
oblong, 5’-6” long, purplish; column very short 
and thick; hoods oval, obtuse or truncate, gib- 
bous at each side near the base, longer than the 
anthers and the subulate incurved horn; follicles 
erect, glabrous, 3’-4’ long, usually with blunt 
Processes near the apex. 
In moist soil, southern Ontario to Ohio, Minne- 
sota, Nebraska, Missouri and Kansas. July—Sept. 
g. Asclepias latifolia (Torr.) Raf. Broad-leaved Milkweed. Fig. 3391. 
Asclepias obtusifolia var, latifolia Torr. Ann. Lyc. N. Y. 
2: 117. 1826, 
Asclepias latifolia Raf, Atl. Journ, 146. 1832-33. 
1, Jamesii Torr. Bot. Mex, Bound, Surv. 162. 1859. 
Minutely puberulent wnen young, glabrous when 
old; stem stout, usually simple, 1°-24° high, very 
leafy. Leaves very thick, oval to orbicular, sessile 
or nearly so, commonly broadly emarginate and 
mucronulate at the apex and cordate or subcordate 
at the base, 4-6’ long and nearly as wide, primary 
nerves very wide-spreading; umbels 2-4, many- 
flowered, short-peduncled in the upper axils or rarely 
terminal; pedicels slender, canescent, nearly 1’ long; 
corolla-segments ovate, acute, 4”-6” long, greenish; 
column short and thick; hoods truncate, about equal- 
ling the anthers, the horn projecting from a short 
crest over the edge of the stigma; follicles erect on 
deflexed pedicels, ovoid, acutish, 2’-3’ long, about 1’ 
thick. 
On dry plains, Nebraska to Colorado, Texas and Ari- 
zona, July—Sept. 
