Aeschynomene brasiliana (Poir.) DC.
Subordinate taxon :
Aeschynomene brasiliana (Poir.) DC. var. brasiliana
Aeschynomene biflora (Miller) Fawcett & Rendle
Aeschynomene guaricana Pittier
Aeschynomene paucijuga DC. var. subscabra DC.
Cassia biflora Miller
Cassia houstoniana Colladon
Hedysarum brasilianum Poir.
Hedysarum hirtum Vell. Conc.
Family: Fabaceae (alt. Leguminosae) subfamily: Faboideae tribe: Aeschymoneneae subtribe: Aeschynomeninae. Also placed in: Papilionaceae.
Brazilian jointvetch, pega pega.
Prostrate or decumbent herb with stems to about 2 m, glandular-hispidulous (bristly and sticky), also crisp-pubescent, woody near the crown. Leaves pinnate, 2-3 cm long, to 22 foliolate, with leaflets obovate-elliptic to oblong, 5-15 mm long and 3-8 mm wide, sparsely pubescent to glabrous on the upper surface. Inflorescence comprising 1-8 yellow flowers, calyx hispidulous, standard about 6 mm long. Pod with 2-5 segments, crisp-pubescent and also glandular-hispidulous, each article about 2.5-3 mm long and 2-3 mm wide. Seeds dark brown, about 2 mm long and 1-1.5 mm wide; 200,000-300,000 seeds/kg.
North America: Mexico (Jalisco).
Central America: Belize, Costa Rica, El Salvador, Guatemala, Honduras, Mexico (Chiapas), Nicaragua, Panama.
Caribbean: Cuba, Trinidad and Tobago (Trinidad).
South America: Bolivia, Brazil (Amapá, Pará, Bahia, Goias, Ceará, Rio de Janeiro), Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Suriname, Venezuela.
Widespread in tropical America, along roadsides, in brushland, savannah and open pine-oak woods.
Legume enhancement of poor quality grassland. No value for cutting systems due to sticky nature of stems and fruit.
Mostly collected from sandy soils of near neutral pH . Although showing best performance on friable, sandy-surfaced soils, A. brasiliana