VOL. II.] 



SPURGE FAMILY. 



13. Euphorbia nutans Lag. Large or Upright Spotted Spurge. 



Euphorbia nutans Lag. Gen. & St. 17. 1816. 

 Euphorbia Preslii Guss. Fl. Sic. Prodr. i: 539. 1827. 

 Euphorbia hypericifolia A. Gray, Man. 407. 1848. 



Not L. 1753- 



Annual, glabrous or sparingly pubescent. Stem 

 branched, at least above, ascending or erect, 7 / -2 

 high, the branches mostly spreading, often recurved 

 at the ends; leaves opposite, oblong, or linear-ob- 

 long, varying to ovate or obovate, often falcate, ob- 

 lique, 3-nerved, unequally serrate, often with a red 

 blotch and red margins, short -petioled; stipules tri- 

 angular, slightly lacerate; involucres narrowly obo- 

 void, Yt" long, one-half or one-third as long as the 

 peduncles, bearing 4 glands subtended by orbicular 

 or reniform entire white or red appendages; capsule 

 glabrous, i" in diameter; seeds oblong-ovoid, ^ ff 

 long, 4-angled, with broken transverse ridges. 



In fields and thickets, throughout eastern North 

 America, except the extreme north, extending west to 

 the Rocky Mountains. May-Oct. 



375 

 (Fig. 2319.) 



14. Euphorbia hexagdna Nutt. Angled 

 Spurge. (Fig. 2320.) 



Euphorbia hexagona Nutt.; Spreng. Syst. 3: 791. 



1826. 



Annual, yellowish green, glabrous or spar- 

 ingly pubescent. Stem slender, erect, or assur- 

 gent, 4 / -2o / tall, branched, the branches as- 

 cending, often almost filiform; leaves opposite, 

 linear, oblong or lanceolate, very short-petioled, 

 obtuse or acute, equilateral; stipules obsolete or 

 very narrow; involucres solitary in the axils, of- 

 ten clustered, i // -i^ // long, ciliate, pubescent, 

 short-peduncled, with 5 glands subtended by 

 triangular-ovate whitish or green appendages; 

 capsule glabrous, 2" in diameter, seeds ovoid or 

 oblong-ovoid, \Yz ff long, terete, papillose. 



Iowa to Montana, Texas and Colorado. Stem 

 striate-angled. June-Oct. 



15. Euphorbia corollata L. Bloom- 

 ing or Flowering Spurge. (Fig. 2321 . ) 



Euphorbia corolla la L. Sp. PI. 459. 1753. 



Perennial by a long stout rootstock, bright 

 green, glabrous or somewhat pubescent. 

 Stem erect, io'-3 tall, often spotted, usually 

 simple; umbellately branched above; leaves 

 linear, oblong or oblong-spatulate, io // -2o // 

 long, entire, short-petioled or sessile, the 

 lower scattered, those subtending the umbel 

 verticillate, rays of the umbel forked; bracts 

 ovate to linear, green; involucres mostly 

 terminal, less than \" long, bearing 4 or 5 

 yellowish green oblong glands subtended 

 by white petal-like cuneate or orbicular- 

 cuneate appendages; capsule erect, subglo- 

 bose, i // -2 // in diameter; seeds ovoid, 

 smooth, sparingly pitted. 



In dry soil, Ontario to Minnesota and Kan- 

 sas, south to Florida and Texas. April-Oct. 

 Ascends to 4200 ft. in North Carolina. 



