Mexican Cologania

Perennial, Herbs, Vines, twining, climbing, Stems woody below, or from woody crown or caudex, Plants with rhizomes or suckers, Nodules present, Stems less than 1 m tall, Stems solid, Stems or young tw igs sparsely to densely hairy, Leaves alternate, Leaves petiolate, Stipules inconspicuous, absent, or caducous, Stipules persistent, Leaves compound, Leaves pinnately 3-foliolate, Leaves odd pinnate, Leaf or leaflet margins entire, Stipels present at base of leaflets, Leaflets 3, Leaves hairy on one or both surfaces, Flowers solitary in axils, or appearing solitary, Flowers in axillary clusters or few-floweredracemes, 2-6 flowers, Inflorescence axillary, Bracts conspicuously present, Bracteoles present, Flowers zygomorphic, Calyx 4-lobed, Calyx gibbous, inflated, or spurred, Calyx hairy, Petals separate, Corolla papilionaceous, Petals clawed, Petals blue, lavander to purple, or violet, Banner petal ovoid or obovate, Wing petals narrow, oblanceolate to oblong, Wing petals incurved, Wing tips obtuse or rounded, Keel tips obtuse or rounded, not beaked, Stamens 9-10, Stamens diadelphous, 9 united, 1 free, Filaments glabrous, Style terete, Reduced cleistogamous flowers produced, Fruit a legume, Fruit stipitate, Fruit unilocular, Fruit freely dehiscent, Fruit elongate, straight, Fruit oblong or ellipsoidal, Fruit exserted from calyx, Fruit internally septate between the seeds, Fruit hairy, Fruit 3-10 seeded, Seeds ovoid to rounded in outline, Seeds subquadrate, Seed surface smooth, Seeds olive, brown, or black.