380 EUPHORBIACEAE. [Vor. II. 
28. Euphorbia commutata Engelm. Tinted Spurge. (Fig. 2334.) 
Luphorbia commutata Engelm. in A. Gray, Man. Ed. 
2, #809. ’ 1856. i scale 
Euphorbia Ohiotica Steud. & Hochst.; Boiss. in DC. 
Prodr. 15: Part 2, 142. 1862. 
Biennial, yellowish green, often tinged with red, 
glabrous. Stem slender, usually decumbent at the 
base, 4/-15’ long, branched, topped by a 3-rayed 
umbel; branches forked or umbellately branched; 
leaves, except the whorl at the base of the umbel, 
scattered, spatulate to ovate, '4/-1'4’ long, obtuse 
or mucronulate, entire, flat, narrowed into a slender 
petiole; bracts opposite, ovate-reniform; involucres 
campanulate, 114’ long, sessile, bearing 3 or 4 
crescent-shaped unappendaged glands prolonged 
into slender horns; capsule globose-oyoid, 114’ in 
diameter, glabrous, the lobes rounded; seeds oblong, 
terete, irregularly pitted. 
On hillsides, chiefly along streams, Pennsylvania to 
Minnesota, Florida and Missouri. March-July. 
29. Euphorbia Esula L,. Leafy 
Spurge. Faitour’s Grass. (Fig. 2335.) 
Euphorbia Esula \,. Sp. Pl. 461. 1753. 
Perennial by a horizontal rootstock, glabrous. 
Stems often clustered, slender, mostly erect, 
8/-2° tall, scaly below, branched above, topped 
by a many-rayed umbel; leaves few, all scattered, 
except the whorl at the base of the umbel, linear 
or oblong, 7’’-20’’ long, 2’’-6’’ broad, entire, 
sessile; those subtending the umbel lanceolate 
or oblanceolate; bracts subreniform, mucron- 
ate; involucres campanulate, 11¢//-1%’’ long, 
nearly sessile, bearing 4 unappendaged crescent- 
shaped glands; capsule nodding, smooth; seeds 
oblong, terete, smooth. 
In waste places, Massachusetts to New York and 
Michigan. Also called Tithymal. Naturalized from 
Europe. Summer. 
Ha 
KF Ed 
30. Euphorbia Nicaeénsis All. Nicaean Spurge. (Fig. 2336.) 
a) Euphorbia Nicacensis All. Fl. Ped. 1: 285. pi. 
69.f. 1. 1785. 
Perennial by a horizontal rootstock, bright 
green, glabrous. Stem rather stout, usually 
clustered, erect or assurgent, S$’-20’ high, 
usually very leafy, simple or branched, 
topped by a 4-7-rayed umbel; branches sim- 
ple or forked; leaves, except the whorl at the 
base of the umbel, alternate, linear or linear- 
oblong, %4/-114’ long, 2’’-6’’ broad, entire, 
mostly apiculate, sessile, revolute-margined, 
those subtending the umbel ovate, oval or 
obovate; bracts opposite, reniform, obtuse or 
apiculate; involucres campanulate, 114’ 
long, sessile, bearing 4 yellowish oblong 
crescent-shaped, 2-horned, unappendaged 
glands; capsule globose-ovoid, 2’’ in diame- 
ter, nodding, smooth, finely wrinkled; seeds 
oblong, 11{’/-1%” long, nearly terete, whit- 
ish, smooth, 
In fields along the Susquehanna River, south- 
ern New York and northern Pennsylvania. 
Naturalized from Europe. July-Sept. 
