Ficus ruficaulis Merr.

Trees, small, deciduous. Branchlets red to pale brown, lenticels conspicuous. Stipules caducous, broadly lanceolate, ca. 2 cm, membranous, glabrous. Petiole 3-10 cm, glabrous; leaf blade broadly ovate to ovate, 15-25 × 10-25 cm, papery to membranous when dry, base rounded, margin entire or occasionally undulate, apex acute; basal lateral veins 2-4, secondary veins 3-5 on each side of midvein, and abaxially prominent. Figs axillary on normal leafy stem, paired or solitary, yellowish orange to reddish purple when mature, globose to depressed globose, 2.5-3 cm in diam., sparsely pubescent, pedunculate; involucral bracts orbicular, 5-8 mm, glabrous. Male flowers: few, near apical pore, pedicel pubescent; calyx lobes 3-5; stamen 1 or 2; filaments thick. Gall flowers: pedicellate; calyx lobes 4-6; ovary obovoid, smooth; style short; stigma enlarged, truncate. Female flowers: sessile or pedicellate; calyx lobes 4; ovary ovoid, smooth; style lateral, longer than in gall flowers; stigma truncate.

Usually at low elevations. S Taiwan [Malaysia, Philippines].

Ficus antaoensis Hayata; F. hiiranensis Hayata; F. ruficaulis var. antaoensis (Hayata) Hatusima & J. C. Liao.