Sujfruticosus, laxe magisminusve disticbe ramosus, inferne nudus, ramis florentibus ascendentibus circiter 7-10 cm. longis puberulis foliatis. Folia trifoliolata, internodiis longiora, ubique pubescentia; petioli graciles, 3-5 mm. longi; foliola obovato-cuneata, rotundata, mucronata aut brevissime cuspidata, lateralia 5-10 mm. longa, 2.5-4 mm. lata, terminalia ceteris paulo majora vel rarius duplo longiora, dorso costa prom inula, nervis lateralibus obsoletis, supra canaliculata, subcoriacea, viridescentia; stipula unica, falcato-lanceolata, acuta, 4 mm. rarius excedens. Flores terminates vel raro axillares, solitarii sed saepissime in umbellas sessiles ramulos laterales breves terminantes, sicco ochracei; pedicelli 1-3 mm. longi, bracteola subulata, triente longiores. Calyx extra parce adpresse pubescens, 4 mm. longus, lobis anguste deltoideis tubo duplo brevioribus, inferiore ceteris paullulo longiore. Vexillum 8-10 mm. altum, lamina reflexa elliptica utrinqne subangustata obtusa quam ungui duplo longiore postice undique parce sericea intra ut ungui glabra; alarum limbi fere oblongi, rotundati, basi perspicue obtuse sagittati, cum unguibus 8-9 mm. longi, extra sericuli; carinae limbus late navicularis, 6-7 mm. longus, ad frontem rotundatus, obtuse auriculatus, extra ubique sericulus; ungues graciles, limbo paulo breviores, glabri. Ovarium lineare, suturo dorso apicem versus hirsutulum; stylus curvatus, superne glaberrimus, stigmate subcapitato.
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