ACACIELLA Britton & Rose
Based on treatment of Acacia por Lourdes Rico for the published Flora de Nicaragua
Generally small trees or slender arbustos, less frequently perennial herbs, inermes; plantas hermafroditas. Hojas bipinnadas, paraphyllidia (pair of minute appendages just above the pinna pulvinulous) present; pecíolos without glándulas, estípulas deciduous or persistent. Inflorescencias capítulos or capitulum-like racemes, in large open panicles, flores pediceladas; cáliz 5 (6)-lobado; corola 5-lobada; estambres completamente libres, siempre más de 200; ovario usually glabro with stipe at least ¼ length of ovary, ovary disc present at stipe base. Fruto plano, usually membranoso, no septado, dehiscente and splitting from apex downwards; semillas aplanados, lenticular to almost circular in outline. Plántulas de germinación epigea, eofilos with first pair opposite and second alternate, first true leaf 1-pinnate.
Género con ca 15 especies, southeren USA to Argentina; 2 especies se conocen en Nicaragua.
L. Rico Acre y S. Bachman. A taxonomic revision of Acaciella (Leguminosae, Mimosoideae). Anales Jard. Bot. Madrid 63: 189—244. 2006.