2n = 18

Intermediate in appearance between A. macrophylla A. Cunn. and A. pusilla Col. Differing from the former in its smaller flowers, smaller thinner leaves, lesser stature, and less-branched habit. Differing from the latter in its larger flowers, larger unblotched leaves, new growth of branches never crimson- purple, greater stature, and more-branched habit.

Frutex ad 1.5 m altus, glaber (nisi oculis lenticula sublevatis) praeter pilos ferrugineos ad axillas limitatas. Rami sparsi, ubi novi aequabilis virides. Folia elliptica-obovata, chartacea, apice acuta, marginibus sparsim serratis, supra subterque aequabilis viridia, (5)-9-(12) cm longa et (2)-3-(4) cm lata. Petioli c. 8 mm longi, aliquantum basi dilatata. lnflorescentiae axillares fasciculares (l)-3-(6)-florae; pedicelli c. 5 mm longi, interdum bracteis parvis ovatis. Sepala 4-5, ± libera, ovata, c. 1.5 mm longa. Corolla regularis infundibuliformis carmesina diluta vel rosea interne dilutior; tubo 13-20 mm longo, ore c. 3 mm diametro; lobis 4-5 patentibus fimbriatis ovatis. Stamina 4-5 ad oram aequalis inserta vix infra stigma. Ovarium c. 3 mm longum, disco coronato. Baccae ± obovoideae, c. 12 mm longae, carmesinae, (2)-8-(∞)-spermae. Differential diagnosis: Facie inter A. macrophyllam A. Cunn. et A. pusillam Col. Differt ab A. macrophylla floribus minoribus, foliis minoribus tenuioribus, statura minore, ramis paucioribus. Differt ab A. pusilla floribus amplioribus, foliis amplioribu; emaculatis, ramis ubi novis haud purpureis, statura majore, ramis plure.