flowers small. petals white, outside farinose-puberulent.

1、

young branches sparsely puberulent, glabrous at maturity.

幼枝疏生微柔毛，成熟时无毛的；

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2、

female flowers: ovary globose, densely yellow-white puberulent.

子房球状，密被变黄白色。

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3、

branchlets rust-brown puberulent, glabrescent on older branches, with gray-white lenticels and persistent bracts.

小枝锈棕色被微柔毛，在老枝上的后脱落，带有灰白色的皮孔和宿存苞片。

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4、

leaf blade puberulent to glabrous, base sometimes strongly oblique, cuneate to cordate.

被微柔毛的叶片到无毛，强烈有时基于偏斜，到心形。

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5、

herbs annual. stems creeping, diffuse, numerous branched, to more than 1 m, glabrous proximally, puberulent distally.

一年生草本茎匍匐，铺散，多数分枝，到多于1米，上部无毛下部，被微柔毛。

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6、

young branches brownish gray when dry, puberulent, with small lenticels, leaf scars obvious.

干燥时带褐色的幼枝灰色，被微柔毛，小的具，明显的叶痕。

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7、

branchlets whitish yellow when dried, densely yellowish stellate puberulent when young, glabrescent.

干燥时的小枝带白色黄，幼时的浓密淡黄星状微柔毛，后脱落。

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8、

branches of current year glabrous, sparsely puberulent, or densely pubescent.

当年的枝无毛，疏生微柔毛，或者密被短柔毛。

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9、

densely and minutely reddish puberulent on branchlets, petioles, abaxial leaf surface, and inflorescence rachis.

浓密和被微柔毛的带红色的微小的在小枝上，叶柄，叶背面，以及花序轴。

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10、

branchlets glabrous or slightly puberulent, rarely sparsely shortly stalked glandular, unarmed.

小枝无毛或者稍具微柔毛，腺，非武装的具短柄的很少稀少。

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11、

leaf blade glabrescent to sparsely puberulent, base strongly oblique, cuneate to rounded.

叶片后脱落对疏生微柔毛，基部强烈偏斜，到圆形。

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12、

stems erect, usually simple, black glandular punctate, glabrous on lower part, puberulent on upper part.

茎直立，通常单，黑色腺点，在下半部分上无毛，在上半部分上被微柔毛。

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13、

sepals broadly ovate, persistent, ascending, glabrous or puberulent, base of lateral pair not saccate.

宽卵形，宿存，上升的萼片，无毛或具微柔毛，不囊状的侧对的基部。

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14、

stems erect or ascending, branched from base, minutely puberulent with simple or short-stalked trichomes less than 0. 1 mm, rarely glabrous.

茎直立或上升，单的分枝自基部，稍被微柔毛具或短茎不到0.1毫米，很少无毛。

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15、

stem solitary, rigid, branching from the middle, solid, acute-ridged, deeply fluted, nodes puberulent or glabrous.

茎单生，硬质，中间分枝，实心，锐尖使成脊状，深深具沟，节被微柔毛或无毛。

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16、

calyx densely glandular puberulent outside, red glandular; leaves succulent.

浓密具腺被微柔毛的花萼在外面，红色具腺；叶肉质的。

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17、

leaf blade persistently downy-puberulent; pedicel and calyx densely puberulent with mostly short, weak hairs.

叶片持续具短绒毛被微柔毛；花梗和花萼用主要短，弱的头发密被微柔毛。

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18、

2 (1) stem and raceme densely spreading puberulent, mixed with a few yellow, glandular hairs.

茎和总状花序浓密开展被微柔毛的的，混合具一些黄，腺毛。

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19、

leaf margin serrulate or inconspicuously undulate, petiole and veins on abaxial leaf surface sparsely puberulent.

叶缘有细锯齿或不明显波状，叶柄和脉在疏生微柔毛叶背面上。

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20、

teeth semicircular to circular, stellate puberulent, apex spinescent-acuminate.

对圆，星状微柔毛半圆的齿，先端具刺渐尖。

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