Perennial shrub, 0.6-2.5 m high. Leaves in whorls of 3 or decussate, linear-lanceolate, glabrous, sometimes midrib below hairy; petioles subobsolete; stipular sheath with small seta. Inflorescence ± contracted, conspicuous. Flowers in clusters of few to many at nodes. Corolla greenish yellow, glabrous to puberulent. Male flowers: tube up to 0.4-1.0 mm long, subcampanulate; anthers ± 2 mm long; minute rudimentary ovary. Female flowers: tube ± 0.5-0.8 mm long; style absent or up to 0.4 mm long, stigma ± 7 mm long. Ovary with small 4-lobed calyx, ± 1 x 0.8 mm. Flowering time July-Dec. Fruit reddish brown to greyish, papillate, mericarps ± 3 x 1.2 mm, elliptic to oblong, covered with straight hairs.
Fruticulus erectus ramosus, 2-3-pedalis, habitu A. athiopico Thbg. similis; ramis erectis angulatis primum microscopice puberulis, demum glabratis, mox lignescentibus, subdense, praesertim apicem versus, foliatis; foliis ternatim verticellatis, erecto-patentibus, linearibus mucronulatis, utrinque glabris, marginibus plus minusve revolutis, 0.6-1 cm. longis; fructibus axillaribus sessilibus oblongis, apice subemarginatis, calycis dentibus subobsoletis; mericarpiis semiteretibus oblongis obtusis, dorso puberulis, 2.5 mm. longis; stigmatibus filiformibus flexuosis, villosis, elongatis, corollam 4-partitam multo excedentibus, c. 0.6 cm. longis.