herbaceous vines. stem terete, slightly angulate, glabrous.

branchlets terete, soft hairy, glabrescent, with sparse, needle-like prickles or nearly unarmed, rarely with dense, minute prickles.

小枝圆柱状，柔软有毛，后脱落，带有稀少，象针一样刺或者差不多非武装，很少具浓，微小的刺。

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branches terete, with rounded lenticels, slightly rough, glabrate.

枝圆柱状，带有圆形皮孔，稍微粗糙，脱毛。

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rhizome horizontally creeping, terete or moniliform, fleshy.

根状茎水平匍匐，圆柱状的或念珠状，肉质。

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branches sometimes pendulous, terete, youngest parts ridged.

枝有时下垂，圆柱状，成脊状的幼嫩部分。

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stems erect or twining, 4-ribbed at first, later terete, usually tuberculate and with longitudinally lengthened lenticels.

茎直立或缠绕的，最初4肋，过后圆柱状，通常具瘤并且具纵向变长。

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stems and branches terete, sulcate or angular, glabrous or young shoot and inflorescence pubescent.

茎和分枝圆柱状，具槽的或具角，或幼枝和花序短柔毛。

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older branchlets gray-brown, terete, longitudinally ridged, puberulent, lenticels absent, leaf scars raised.

老枝灰色棕色，圆柱状的，纵向使成脊状，被微柔毛，无的皮孔，叶痕提高。

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ovary terete in bud, becoming broadly conic, gourd-shaped, or ovoid at anthesis, slightly pubescent or glabrous.

子房在芽中圆柱状，在花期变为宽圆锥形，葫芦形，或卵球形，稍被短柔毛或无毛。

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stems terete, densely ferruginous with glandular trichomes and tomentose.

茎圆柱状，密被具腺毛和被绒毛。

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herbs, perennial. stem terete, erect, fluted, glabrous, branched above, hollow.

多年生草本圆柱状的茎，直立，具沟，无毛，上面分枝，空。

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shrubs climbing. stems terete, pubescent, glabrescent.

攀援灌木茎圆柱状，短柔毛，。

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taproot thickened, elongate terete or clavate, fleshy, reddish, reddish-yellow, or yellow.

加厚的直根，拉长圆柱状或棍棒状，肉质，带红色，带红色黄，或黄的。

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stem erect, usually much branched, pallid or yellow-white, terete below, slightly ribbed above, glabrous.

茎直立，通常多分枝，灰白色或黄色白色，圆柱状下面，在上面的稍具肋，无毛。

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stems erect or arcuate at base, terete or slightly angulate, simple or short branched in upper part, with multicellular hairs.

茎直立或弧曲在基部，圆柱状或稍，单或短枝在上半部分，具多细胞毛。

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leaf blade terete, sometimes slightly compressed when dry, distinctly and perfectly septate.

圆柱状的叶片，有时干燥时稍压扁，清楚和完全具隔。

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branches prostrate or ascending, yellow-white, terete, somewhat ribbed above, glabrous.

分枝平卧或上升，黄白色，圆柱状，有点上面，无毛的棱。

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stems erect from procumbent base, terete, reddish brown, usually simple, with multicellular hairs.

来自平卧的基地的茎直立，圆柱状，红棕色，通常单，具多细胞毛。

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branchlets grayish brown to grayish black, terete, slender, initially densely yellow pubescent, gradually glabrescent.

黑色，圆柱状，纤巧的小枝淡灰棕色到带灰色，最初密被黄色短柔毛，逐渐后脱落。

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stem erect, terete, robust, conspicuously grooved, simple or branched in upper part, sparsely glandular at nodes.

茎直立，圆柱状，粗壮，显著具凹槽，单一或分枝在上半部分，疏生具腺的在节上。

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shrubs scandent. stems terete; axial parts silvery sericeous when young, later yellowish or glabrescent.

攀缘灌木茎圆柱状幼时轴深裂银色光泽被绢毛，过后淡黄或后脱落。

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