Rough Fruit Scaleseed

Spermolepis divaricata (Walt.) Britton, Mem. Torrey Club 5: 244. 1894.
Daucus divaricatus Walt. Fl. Car. 114. 1788.
Sison pusillum Michx. Fl. Bor. Am. 1: 168. 1803.
Ammi divaricatum Pers. Syn. P!. 1: 308. 1805.
Ligusticum pusillum Pers. Syn. PI. 1: 315. 1805.
Aethusa divaricata Spreng. Umbell. Prodr. 22. 1813.
Sison divaricatus Spreng. Sp. Umbell. 113. 1818.
Leptocaulis divaricatus DC. Coll. Mem. 5: 39. 1829.
Leptocaulis diffusus Nutt.; DC. Coll. Mem. 5: 39. 1829 (nomen nudum); Prodr. 4: 107. 1830.
Babiron divaricatum Raf. New Fl. 4: 24. 1838.
Babiron dichotomum Raf. New. Fl. 4: 24. 1838.
Babiron pusillum Raf. New. Fl. 4: 23. 1838.
Apium divaricatum Wood, Bot. & Fl. 140. 1870.
Slender, erect, 1-7 dm. high; leaves oblong to oblong-ovate in general outline, excluding the petioles 0.5-5 cm. long, 5-35 mm. broad, ternately or ternate-pinnately decompound, the ultimate divisions linear, acute, 3-15 mm. long, 0.2-1 mm. broad; petioles 0.5-3 cm. long, the sheaths with a winged scarious margin; peduncles 1-5 cm. long; involucel of a few linear, acute bractlets, the margins scarious and usually callous-toothed; rays 3-7, divaricate, subequal, 5-35 mm. long; pedicels 1-6, 2-15 mm. long, or the central flower of each umbellet sessile; fruit ovoid, 1.5-2 mm. long, about 1.5 mm. broad, tuberculate.
Type locality: "Carolinas," presumably Walter.
Distribution: Virginia to Florida, west to Kansas and Texas (Bush 325, Curtiss 4609, Hall 269).

Spermolepis divaricata
For "Britton, Mem. Torrey Club 5: 244. 1894." substitute: Raf. Bull. Bot. Seringe217. 1830.
Add the synonym: Sifiora pusillum Raf. Bull. Bot. Seringe 217. 1830.