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丝兰属龙舌兰科丝兰属(Yucca),本属有40余种,分布在美洲温暖、潮湿地区。丝兰有单一的通常不分枝的茎杆,高约1～2米,基部常胀得很大,树皮呈棕色,外层组织粗糙。茎顶长着成丛深绿色、质地坚硬的叶,叶长约50厘米,宽4厘米,叶端尖锐,树形挺拔、刚劲。在野外丝兰可长至十几米高,花期9～10月,开白色的蝶形花。但在室内栽培却生长非常缓慢,一般不开花。其栽培管理要点如下:
Yucca genus Yucca genus (Yucca), the genus has more than 40 species, located in the warm, humid Americas. Yucca has a single, usually unbranched stalk, about 1 to 2 meters high, with a large base that swells so much that the bark is brown and the outer tissue is rough. The culms grow into clusters of dark green, hard-textured leaves about 50 cm long and 4 cm wide with sharp-edged leaves and tall and vigorous trees. In the wild yucca can grow to more than ten meters high, flowering from September to October, open white butterfly flowers. But in the indoor cultivation is very slow growth, generally not flowering. The cultivation management points are as follows: