The morphological characteristics of white rattan

Grass vine. Branchlets are cylindrical, longitudinally ribbed, often white-powdered and glabrous. The tendrils are bifurcated and separated by 2 leaves and opposite leaves. Leaves heart-shaped, ovoid, 5-13 cm long, 4-9 cm wide, apex acute or acuminate, base cordate, with 9-12 sharp serrations on each side of edge, green above, pale green below, both sides Hairless; base vein 3-5, midvein lateral vein 3-4 pairs, reticulate vein not obvious; petiole length 2.5-7 cm, glabrous; stipules brown, membranous, reniform, 5-6 cm long , width 2-3 cm, hairless. Inflorescence terminal or opposite to leaves, secondary branches 4-5-merged to form umbrella-shaped; peduncle 1-3 cm long, glabrous; pedicel long 2-4 mm, few glabrous; flower buds ovoid, high approx. 4 mm, rounded top; cup apically, margin entire or undulate, glabrous; petals 4, ovate-triangular, ca. 3 mm tall, glabrous; stamens 4, anthers oval-shaped, slightly longer than wide or The length and breadth are nearly equal; the disc is distinct and slightly split; the lower part of the ovary merges with the disk, the style is nearly diamond-shaped, and the stigma is not significantly enlarged. Fruit obovoid, 0.8-1.2 cm long, 0.4-0.8 cm wide, 1 seed, obovoid, rounded top, short beak at base, sparsely prominent ribs on surface, umbilicus on back of seed The following 1/4 is no different from the kind of ridge, the kind of ridge is prominent, the ridge in the middle of the abdomen protrudes, and it reaches up to 1/3 of the upper part of the seed. Flowering from July to October, fruiting period from November to May the following year.

Herbs are perennial. Underground roots. The stems and leaves of white powder vines, branches softly sagging or climbing. Palmate compound leaves, leaflets 3; each leaf length 3-5 cm, two leaflets equal on both sides, the middle leaflet is larger, has a short handle, the middle petiole is longer; new leaves are often silvery hairs, mature leaves are bright green or Dark green, brown hair on the back of the leaves. There are tendrils on the stem vine, and the ends of the tendril bifurcate.

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