North American evergreen fern having pinnate leaves and dense clusters of lance - shaped fronds.
具有羽状叶片和成群长矛 状 复叶的一种北美常绿蕨类.
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North American perennial with hairy basal pinnate leaves and purple flowers and plume - tipped fruits.
北美洲的一种多年生植物,具有多毛的羽状基叶,紫色的花朵,果实顶端有宿存的羽毛状花柱.
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