|alder (Alnus spp.)||
alder (Alnus spp.; BIRCH FAMILY [Betulaceae]) Trees or shrubs with broad deciduous leaves. Buds are notable for being stalked. Staminate flowers in long (4-6") catkins, pistillate in a cluster with woody bracts that persist like miniature conifer cones long after the fruits have been shed. Of the 3 Wisconsin species, speckled (tag) alder is probably the most familiar. It is a coarse, weak-wooded shrub that forms dense thickets along northern Wisconsin streams. The largest divisions of its doubly-toothed leaves are large enough to be considered lobes. 
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