spines of leaves 中文意思是什麼
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Leaves crowded near apex of the trunk, spirally arranged ; stipes dark brown, with sharp spines ; lamina large, oblong, tripinnate ; pinnae 17 - 20 pairs, alternate, longest one to 60 cm long, the basal one reduced ; rachis short - spiny ; pinnules 18 - 20 pairs, sessile or nearly so, lanceolate, to 10 cm long and 2. 5 cm wide, divided almost to the costa ; segments more or less falcate, toothed
葉螺旋狀排列，聚生於莖端；葉柄棕色，具銳刺；葉片大，長矩圓形，三回羽狀深裂；羽片17 - 20對，互生，最大的長達60厘米，基部一對縮短，羽軸有短刺；小羽片18 - 20對，無柄或近於無柄，披針形，長達10厘米，寬2 . 5厘米，深裂幾達中脈；末回裂片多少鐮狀，有齒。 -
In some xerophytes, such as cacti, most of the leaves are modified into spines, greatly reducing the leaf area for transpiration ; the photosynthetic function of the leaves is taken over by the green stems
在一些旱生植物中，如仙人掌，大部分的葉片都特化為刺，極大的減少了葉片區域的蒸發作用，同時光合作用為綠色的莖所承擔。 -
It may have spines at the base of the strongly three - veined alternate leaves
葉互生、柄短，基生3出脈，具鋸齒。
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