Key to Wisconsin Lamium

Author: John G. Zaborsky

• 1a. Corolla tube curved at the base; leaves usually mottled white L. maculatum

• 1b. Corolla tube straight; leaves green 2

• 2a. Bracts amplexicaul, palmately-lobed, angled upward or spreading; calyx tube densely pubescent L. amplexicaule

• 2b. Bracts not amplexicaul, merely toothed, angled downward; calyx tube glabrous to sparsely pubescent L. purpureum