North American fern with narrow fronds on yellowish leafstalks.

黄色叶柄处具有窄小复叶的北美蕨类.

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Eurasian fern with simple lanceolate fronds.

带有披针形复叶的分布于欧亚大陆的一种蕨类.

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Compound leaves are composed of several lobes.

复叶由几个圆瓣组成.

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North American fern with evergreen fronds.

长有常绿复叶的北美蕨类.

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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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A regeneration system of plantlets was established with apical bud of Acer negundo L.

初步建立了复叶槭顶芽组培再生体系.

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Configuration feature: Deciduous leaf arbor. 2 - 3 answers a shape compound leaf , opposite, flocculus whole reason.

形态特征: 落叶乔木. 2-3 回羽状复叶, 对生, 小叶全缘.

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Feather leaf, lobular 3 to 5, Luanzhuang long oval, a pointed tip, a serrated leaf edge.

羽状复叶, 小叶3～5片, 卵状长椭圆形, 先端尖, 叶缘有锯齿.

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A perennial plant of the genus Sanguisorba, having pinnately compound leaves and apetalous flowers asgarnish.

地榆,美洲地榆一种地榆属多年生植物, 有羽状复叶和无花瓣的花.

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