| Trees, shrubs or lianas, very rarely herbs ( Neptunia and Mimosa p.p.); branches unarmed or armed with stipular thorns (rarely axillary thorns) or scattered prickles on the internodes. Stipules rarely absent, usually caducous. Leaves alternate, usually bipinnate (unipinnate in Inga, transformed into phyllodes in Acacia subg. Phyllodineae), usually provided with extrafloral nectaries on rachis and pinnae. Inflorescences bracteate, simple or compound, racemose; inflorescence units usually consisting of pedunculate glomerules, spikes or spike-like racemes, which are aggregated into axillary or terminal panicles. Pedicels usually short or absent. Flowers actinomorphic, bisexual, unisexual, or rarely neuter, usually small and white, greenish or yellow. Disk,... |
