Changes

*Dioecious tree, 15-20 m tall; bark reddish-brown outside, tan inside. *Leaves obovate to elliptical, 15-18 cm long, thin, slightly thicker than in ''G. gnemon'' , yellowish when dry, tapering at both ends, petiole 0.5 cm, secondary nerves bent, joining. *Male inflorescences solitary, axillary, simple, yellowish, 6-7 cm long, whorls with hairs and sessile flowers remote, 3 mm broad, male flowers with tender long-exserted sporophyll (stamen), female flowers sterile, ovate, beaked, finely whitish pubescent, up to 10 in a ring. *Female inflorescences similar, their flowers immersed in dense whitish hairs, flowers long-acuminate, finely whitish pubescent. *Fruit nut-like, obliquely-fusiform, 4 cm × 1 cm, red or pink, tapering at base, acuminate at top, its outer envelope thin, fleshy, showing the longitudinal ribs of the hard middle envelope when dry. *Seed fusiform, furrowed.

[1] * Markgraf, F., 1951. Gnetaceae. In: van Steenis, C.G.G.J. (Editor): Flora Malesiana, Series 1. Vol. 4. pp. 336, 341.