Shrub or small tree, up to 5-6 m. high, the branches and inflorescence-axes ferruginous-tomentellous. Leaves with a slender petioles 6-9 cm. long, ferruginous-tomentellous, the blade broadly ovate, usually 3-lobate, cordate at the base, the middle lobe long-acuminate, the laterals acute to acuminate, 10-13 cm. long and 7-10 cm. wide, the margins very irregularly serrate, the basal serrations generally glandular, discolor, the upper surface rather densely puberuLlou1s, the lower surface tomentose, usually 7-palminerved, the nervation slightly prominent beneath. Inflorescences terminal, the cymes of 3-5 cymules condensed in nodose clusters, the peduncles 2-4 mm. long, the pedicels 2-3.5 mm. long, both ferruginous-tomen-tellous. Flowers 8-10 mm. long, hermaphrodite, the sepals 5, obovate-linear, acute, the appendages ca. 1 mm. long, 8-10 mm. long (the appendages included) and ca. 1.5 mm. wide, palid and tomentellous without, yellow-brown and glabrescent within; petals obovate-spatulate, rounded, ca. 2.5 mm. long and 1 mm. wide, puber-ulous near the base; gonophore ca. 0.6-0.7 mm. long, with 5 distinct elliptic glands subequalling the gonophore, the urceolus ca. 0.4 mm. long and briefly ciliolate; stamens ca. 50-60, the filaments ca. 3-3.5 mm. long, glabrous, the anthers ca. 0.8 mm. long; ovary ovoid, ca. 0.7 mm. in diam., covered with straight spinules; style ca. 3.5-5 mm. long, glabrous; stigma very shortly 2-parted. Fruit suborbicular, the body 3-4 mm. long and ca. 2 mm. in diam., glabrescent, the spines ca. 75, 3-4 mm. long, sparsely hirtellous, the spinules straight to slightly arcuate, 2-celled, each cell 1-seeded; seeds pyriform, flattened, ca. 2.5 mm. long.