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B Keys to Species
A Systematic List of the Species included in the Keys
2 other sections not shown
achenes acorn cups acuminate acute americana apex appressed axillary bark of trunk Base of petiole berry-like branches branchlets brown bud-scales buds brown Buds glabrous Bundle-scars canadensis catkins ciliate clustered cones cordate corky corymbs Crataegus cyme deciduous Decumaria decurrent drupe drupe-like fruit a berry fruit a capsule fruit a drupe fruit a legume fruit red Gaylussacia glabrate glabrous glabrous or nearly glands glandular glaucous gray green hairy lanceolate lateral buds leaf-scars leaves and twigs Leaves deciduous Leaves glabrous legume lenticels lobes Lonicera lower surface Margin of leaflets Margin of leaves Marsh Michx midrib nigra nutlets obtuse ovate petiole pith Plants pome prickles puberulent pubescent Pursh racemes reddish-brown resinous Rhus ridges Salix scales serrate sessile shreddy shrubs silky spicy-aromatic spines stalked Stipule-scars Summer Key superposed surface of leaves tall shrubs terete thorns tomentose trees twigs Twigs glabrous twigs slender upper surface Vaccinium Viburnum virginiana whorled Winter Key woody yellow