Trees, to 15 m tall, hermaphroditic. Branches with conic prickles. Leaves simple, 5-7-lobed; petiole 15-25 cm, tomentose at first, glabrescent; stipules small or absent, ovate to ovate-deltoid; blade 17-35 cm wide, papery, lobes divided less than 1/2 way to base, broadly ovate-triangular to nearly rounded, abaxially stellate pubescent, glabrescent, adaxially tomentose, veins conspicuous on both surfaces, base broadly convex, margin sharply dentate, apex acuminate. Inflorescence terminal, apparently erect to ascending, densely tomentose, glabrescent after anthesis, with scattered prickles; primary axis to ca. 30 cm; secondary axes to 10(-13) cm; peduncles 1.5-2 cm; umbels 2.5-3.5 cm in diam.; pedicels 0.8-1 cm. Ovary 2-carpellate. Fruit subglobose, ca. 8 mm in diam.; styles persistent, ca. 2.5 mm. Fl. Dec-Mar, fr. Jun-Aug. 2n = 48.
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