Morus australis Poiret var. trilobata S. S. Chang, Acta Phytotax. Sin. 22: 66. 1984.

Trees to 3.5 m tall. Branchlets reddish brown, glabrous or subglabrous. Petiole 2-2.5 cm, sparsely hairy; leaf blade deeply 3-5-lobed, 10-13 × 7-10 cm, papery, glabrous or abaxially sparsely pubescent along midvein and lateral veins, base rounded to truncate, margin entire or apically coarsely toothed, teeth apically acute to acuminate and without subulate apiculum or seta; middle lobe narrowly lanceolate, 6-8 × 1-1.5 cm; lateral lobes shorter, lanceolate. Female inflorescences cylindric, 2-4 × ca. 0.5 cm, pubescent; peduncle 8-10 mm, sparsely pubescent. Female flowers: calyx lobes ovate, ca. 2 mm, margins hairy; pistil 4-5 mm; ovary ca. 2 mm; style ca. 1 mm; stigma 2-branched, ca. 2 mm, abaxially pubescent. Achenes ± compressed. Fl. May-Jun.

* Slopes; ca. 800 m. Guizhou (Kaili).