三种爬山虎叶表皮附属物，海绵组织的疏松程度，叶片特征具有种间差异。
The epidermal appurtenances to three kinds of Parthenodssus tricuspidata, the loose degree of spongy tissue and the characteristics of leaves have varietals diversity.
皮刺比刺要小了许多：它们是这些植物外层的附属物，看上去像皮肤的表皮，其下还有亚表皮层。
Prickles are smaller than thorns: they are sharp outgrowths of the plant's outer layers, the skin-like epidermis, and the sub-epidermal layer just beneath it.
三叶海棠下表皮有丝状表皮毛附属物，其它试验品种均无。
M. sieboldii have filamentous epidermal hairs under the abaxial, neither are experimental varieties.
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