Urtica grandidentata Miq. (1853: 27)

Becker, Karin, Grosse-Veldmann, Bernadette & Weigend, Maximilian, 2017, Weeding the nettles VI: Taxonomic and phylogenetic studies of the Southeast Asian Urtica fissa-clade (Urticaceae), Phytotaxa 323 (3), pp. 217-236 : 224

2. Urtica grandidentata Miq. (1853: 27)

Erect, perennial herb ca. 1.5 m, form perennial root and with pleiokorm of perennating underground stems; stem indumentum of stinging hairs with pluricellular base 2.0–3.0 mm long overall, setae 2.0–1.0 mm, and with simple trichomes ca. 0.1 mm long; leaf lamina ovate, 90–180 (–300) × 70–130 (–300) mm, leaf margin lobulate with 12–25 major teeth on each side, 5–15 mm long, major teeth with 1–3 minor teeth, 1–2 mm long; leaf base subcordate to rounded, leaf apex apiculate; leaf indumentum of stinging hairs with pluricellular base 1.5–3.0 mm long overall, setae 1.0– 2.5 mm, and with simple trichomes 0.1–0.5 mm long; petioles 30–100 (–250) mm long; 4 stipules, forming 2 fused pairs per node, 10–15 mm long, elongated to rounded; plant monoecious, mature fruits with tepals ca. 1.2 mm long, achenes suborbicular in outline, laterally flattened, ca. 1.2 × 1.0 mm.