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Morphological diversity in Tetrastigma. Leaves: (A) Simple; (B) 3-foliolate; (C) digitately palmate, 5-foliolate; (D) pedately palmate, 5–7–9-foliolate. Tendril: (E) unbranched; (F) bifurcate; (G) digitate, 5–7 branched. Flower: (H) female, 4-petaled, 4-lobed stigma. Inflorescence: (I) simple umbel; (J) compound umbelliform. Fruit: (K) ellipsoid, (L) spheroid. Photographs: (A–J,L) photographed by L.M. Lu; (K) photographed by B. Liu.
