五角栝楼 wu jiao gua lou

Petiole 5-11 cm, striate, punctate; leaf blade adaxially deep green, quinquangular or broadly ovate, 13-22 × 12-20 cm, membranous, shortly 5-lobed or up to middle; lobes broadly triangular or ovate-triangular, abaxially glabrous, adaxially glandular punctate and rough, margin denticulate, apex long acuminate. Plants monoecious. Male raceme 17-30 cm; peduncle glabrous, striate, 8-10-flowered; bracts ovate, 3.5-4.3 × ca. 2.5 cm, with 2 rows of brownish puncta beside main vein, entire, apex long acuminate; calyx segments linear-lanceolate, 2-3 × 0.2-0.3 cm, margin sharply 2- or 3-lobed, apex long acuminate. Female flowers not seen. Fruiting peduncle 2-3 cm, glabrous; fruit red, globose, 5-7 cm, glabrous. Seeds brown, triangular-ovate, 1-1.2 × 0.4-0.5 cm, base attenuate, apex triangular. Fl. Jun-Oct, fr. Sep-Oct.

Low-elevation thickets, roadsides; 500-900 m. Taiwan, S Yunnan [Indonesia, Malaysia, Myanmar, New Guinea, Philippines, Thailand, Vietnam].