Young shoots and both surfaces of leaves not lepidote .

幼枝和叶两面不具鳞片。

Leaflet blades densely lepidote on both surfaces or only abaxially densely lepidote .

小叶叶片密被鳞片在两面或只背面的密被鳞片。

Branchlets angular , along with petiole and leaf blade densely silvery-gray or rusty lepidote .

小枝具角，叶柄和叶片密被银色灰色或者生锈具鳞片。

Young branches , buds , and abaxial side of leaf blade lepidote or glabrous .

幼枝，芽和叶片具鳞片的或无毛的背面的边。

Leaflet blades glabrous on both surfaces or only abaxially sparsely lepidote along midvein .

小叶叶片两面无毛或只背面稀疏具鳞片的沿中脉。