Trigonostemon viridissimus var. elegantissimus

Yu, R. - Y. & Welzen, P. C. van, 2018, A taxonomic revision of Trigonostemon (Euphorbiaceae) in Malesia, Blumea 62 (3), pp. 179-229 : 221

1. Petioles longer than 1.5 cm, glabrous. Inflorescences terminal or subterminal, erect, glabrous b. var. elegantissimus a. var. viridissimus — Map 14

Leaves: petiole 0.5–1.5(–5) cm long, pubescent; blade elliptic to ovate, glabrescent above, pubescent beneath. Inflorescences often axillary, pendulous, often pubescent.

Distribution — Malay Peninsula, Sumatra, Java, Borneo, Philippines, Lesser Sunda Islands.

Habitat & Ecology — Growing on reddish clay soil. Altitude: 0–450 m. Flowering: all year round; fruiting: January, May, July, November.

Note — A widely distributed variety with obvious triplinerved venation, paniculate inflorescences with few branches, free anthers (free parts of filaments often more than 0.3 mm long), glabrous ovary and often oil-like spots on the flowers and fruits.