Oreopanax vestitus A. C. Sm.

Oreopanax vestitus A. C. Smith, Ann. Mo. Bot. Gard 27:324. 1940.
Tree or shrub, to 15 m. high (or scandent?), the branchlets slender, densely ferruginoustomentose (the hairs stellate, many-branched, short-stalked or subsessile), at length glabrescent; leaves simple, the petiole up to 10 cm. long, densely tomentellose, at length glabrous, the blade thin-coriaceous, obovate-elliptic or elliptic-oblong, 9-20 cm. long, 3.5-7 cm. broad, acute to rounded at the base, shortly callose-apiculate or acuminate at the apex, entire and narrowly revolute at the margins, essentially glabrous above, stellate-tomentellose beneath (the hairs 4— 9-branched, short-stalked or subsessile), 3-nerved from the base, the costa prominent, the secondary nerves few, ascending; staminate inflorescence terminal, up to 10 cm. long and broad, the branches, bracts, and peduncles ferruginous-stellate-tomentellose, the bracts linear-oblong, 1-2 mm. long, the peduncles slender, 4—9 mm. long, the heads racemosely arranged, subglobose, 3-5 mm. in diameter, the bracteoles minute; flowers 8-15 per head, glabrous, the calyx cupuliform, 1—1.3 mm. in diameter, the limb essentially truncate; petals 4 or 5, ovate-deltoid, 1.4-1.7 mm. long; filaments 3-3.5 mm. long at anthesis, the anthers nearly 1 mm. long; styles 2, about 0.5 mm. long; hermaphrodite inflorescence slightly more compact than the staminate, the peduncles 3-5 mm. long, the flowers 5-9 per head; calyx at anthesis 1.3-1.7 mm. in diameter; petals subconnate and calyptrate, about 1 mm. long and broad; filaments very short; styles 4 or 5, erect, free from the base, the locules 4 or 5; young fruits about 6 per head, the styles recurved.
Typb locality: Costa Rica (Alajuela).
Distribution: Costa Rica and western Panama, alt. 975-2000 m.