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landscape plant
:
spermatophyte
:
Plumerieae A. DC.
>
water liquorice
水甘草属
描述 amsonia walt.
水甘草属
,夹竹桃科,30种以上,分布于北美及东亚,但大部产北美,我国有水甘草a. sinensis tsiang et p. t. li 1种,产江苏和安徽。草本,喜生于湿地上;叶互生,狭披针形;花篮色至白色,排成顶生的聚伞花序;萼5裂;花冠高脚碟状,裂片5,直立或广展;雄蕊 5 ;花盘缺;蓇葖 2个,圆柱形,内有种子多颗;种子无附属体。
所属科 夹竹桃科
分布量 世界:30种;中国:1种
引种状况 非引种