Spananthe paniculata Jacq.

Spananthe paniculata Jacq. Coll. 3: 247. 1789
Hydrocotyle Spananthe Willd. Sp. PI. 1: 1363. 1798. Spananthe setosa Moench, Meth. Suppl. 34. 1802. Phellandrium ciliatum DC. Prodr. 4: 81, as syn. 1830. Spananthe angulosa Turcz. Bull. Soc. Nat. Mosc. 20': 171. 1847.
Plants 2-15 dm. high; leaves deltoid-ovate, excluding the petioles 1.5-14 cm. long, 0.514 cm. broad, acuminate, subcordate to truncate, dentate-crenate, sparingly setose-pubescent on the veins, with a tuft of setulose hairs at the junction of petiole and blade; petioles 0.7-14 cm. long; cauline leaves becoming lanceolate above; peduncles 0.7-14 cm. long, hirtellouspubescent at base of the umbel; involucre of several lanceolate, mostly entire bracts, 2-3 mm. long; pedicels several, spreading-ascending, 7-10 mm. long; fruit ovoid, 2-4 mm. long, about 2 mm. broad.
Type locality: "Circa Caracas," Venezuela, no collector designated.
Distribution: Central Mexico and Central America to South America; West Indies. (Heyde &■ Lux 3351, 4192, Pringle 6231.)