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Aquatic and Wetland Vascular Plants of the Northern Great Plains

Class Magnoliopsida, Dicotyledons

Plants with vascular bundles of stems typically arranged in a ring in herbaceous forms, forming a cylinder which encloses a central pith, usually with a fascicular cambium; woody forms with secondary growth added on in layers by a vascular cambium; leaves mostly pinnately or palmately net-veined; flower parts (mainly the sepals, petals and stamens) usually in multiples of 4 or 5, seldom 3; plant embryo usually with 2 cotyledons.

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