Railroadfence

Perennial, Trees, Shrubs, Woody throughout, Stems erect or ascending, Stems greater than 2 m tall, Trunk or stems armed with thorns, spines or prickles, Stems solid, Stems or young twigs glabrous or sparsely glabrate, Stems or young twigs sparsely to densely hairy, Leav es alternate, Leaves petiolate, Stipules conspicuous, Stipules green, triangulate to lanceolate or foliaceous, Stipules deciduous, Stipules free, Leaves simple, or appearing so, Leaf or leaflet margins entire, Leaflets lobed or hastate, Leaflets 1, Leaves glabrous or nearly so, Inflorescences racemes, Inflorescence axillary, Inflorescence terminal, Bracts conspicuously present, Bracteoles present, Flowers actinomorphic or somewhat irregular, Calyx 5-lobed, Calyx glabrous, Calyx hairy, Petals separate, Petals greenish yellow, Stamens 9-10, Fertile stamens 5, Stamens completely free, separate, Filaments glabrous, Style terete, Fruit a legume, Fruit stipitate, Fruit unilocular, Fruit freely dehiscent, Fruit elongate, straight, Fruit oblong or ellipsoidal, Fruit coriaceous or becoming woody, Fruit exserted from calyx, Fruit glabrous or glabrate, Fruit hairy, Fruit 3-10 seeded, Seeds ovoid to rounded in outline, Seed surface smooth, Seeds olive, brown, or black.