Tree, c. 13 m high, dbh up to 20 cm; Branchlets shortly sericeous, especially when young; Leaves 2-4-jugate; Inflorescences axillary, branching basally and along the somewhat flattened, sericeous, 3.3-12.2 cm long axis; Flowers c. 3 mm in diam. Sepals 5, ovate, margin pilose, with glands, outside and inside glabrous; Petals 5, elliptic, c. 1.4 by 1 rnm, white; Stamens 8; Fruits unknown.
Asia-Tropical: Maluku (Maluku present), Morotai I present
Malesia: Moluccas (Morotai I.).
This species strongly resembles G. sub-sericea, but the latter has a wingless rachis and asymmetrical leaflets with a cuspidate to caudate apex instead of a winged rachis, symmetrical leaflets, and an acuminate apex.