Arbor 15 m alta ramusculis robustis breviter ochraceo-tomentosis deinde pubescenti-bus. Gemmae terminales ochraceo-tomentosae. Folia 6-7-juga axis robusto 30-45 cm longo ochraceo-tomentoso supra bicostato canaliculatoque interjugis 3.5-6.0 cm longis petiolo robusto 9-12 cm longo, stipellis subulatis vel corniculatis 3-5 mm longis. Foliola crasse rigideque coriacea; petioluli 2-4 mm longi ochraceo-tomentosi terminalis 10-16 mm longus; laminae 10-18 cm longae, 5-10 cm latae oblongo-ellipticae vel ovato-oblongae basi asymmetricae rotundatae apice breviter attenuatae acutaeque vel obtusae margine grosse subserrato-dentatae dentibus plerumque profundis mucronibus saepe acutis, supra pallide brunnescentes puberulae costa impressa tomentosa cetera puberulae vel denique glabratae nervis secundariis filiformibus impressis superficie plus minusve rugulosae; subtus ochraceae vel fulvae supra nervatione molliter moderateque tomen-tellae, hirtellae, nervis secundariis (13-) 16-17 utroque latere eminentibus patulo-ascendentibus angulo 50°-65°, nervis tertiis transversis sicut reticulo venulorum prominentibus. Paniculae robustae 11-15 cm longae 10-20 cm latae; pedunculo 6-12 cm longo robusto striolato tomentuloso, ramis ochraceo-vel ferrugineo-tomentosis. Bracteae 0.5-2.0 mm longae stricte lineares. Pedicelli crassiusculi 0-1.5 mm longi. Flores tetrameri, raro pentameri, unisexuales; calyx expansus 6 mm diametro lobis ovatis acutis extus hirto-tomentosis intus dilute sericeis; antherae fertiles elliptico-oblongae 1.2-1.3 mm longae, steriles oblongae 0.6 mm longae. Folliculi saepe quatuor evoluti, tomentosi hispidulique circa 3.5 mm longi latique 2.5 mm crassi, endocarpio crassiuscule cartila-gineo globoso-ovoideo basi uno latere angulato, circa 2.5-2.2 mm, siccitate apperto U-forme. Semina subellipsoidea compressa rubescenti-brunnea 2.0 × 2.0 × 1.4 mm.
Central Cordillera of Colombia in Antioquia in subandean and Andean forests between 2000 and 2400 m elevataion.
