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Leaves opposite , entire , often revolute , estipulate .

叶对生，全缘，通常外卷，无托叶。

Leaves entire and revolute on margin .

在边上全缘和外卷的叶。

Capsule valves usually revolute when dried .

通常外卷的蒴果裂爿干燥时。

Leaf margin entire and revolute , blade abaxially densely rusty pubescent .

叶缘全缘和外卷，叶片密被锈色短柔毛。

Leaf margin strongly revolute ; stomatal bands white , partly hidden .

叶缘强烈外卷；气孔带白色，部分隐藏。