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Ajuga
See list of 2 species in this genus-
1a. Plants upright, not forming mats; upper lip of the corolla with 2 teeth; stems usually evenly pubescent on each face (varying to subglabrous); flowers in verticillasters of 6 or more at each node
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1b. Plants with stolons, mat-forming, the flowering stems upright; upper lip of the corolla entire; stems usually pubescent on opposite faces in lines of decurrence from the leaves, alternating faces at each node; flowers in verticillasters of usually 6 at each node
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Each photo represents one species in this genus.