Carpels 6-17, uniovulate, nearly orbicular to transversely oblong-elliptic in lateral view, brownish to reddish-black or black, generally with deep, acute grooves between adjacent carpels; endoglossum obscure or prominent, arising ventro-apically and dividing the locule into a small, empty or rarely uniovulate (in A. scabrosa), smooth-walled, dehiscent or indehiscent upper cell and an indehiscent, smooth or transversely ridged or more or less reticulate, 1-ovuled lower cell. Involucral bracts 3(-5), distinct and also free from the calyx. Calyx 5-lobed.
Thinly to densely glandular-hairy shrub to 2 m. Leaves mostly obscurely 3-lobed or elliptic and toothed. Flowers 1-few in axils on slender pedicels, pink, epicalyx of 3 linear to lanceolate lobes.