Tall weed with leaves in pairs and stems square
in cross-section. Leaves are toothed near the top of the
plant, deeply cut into three lobes lower down, and cut into five
lobes still lower. Small, lilac, furry flowers in whorls
just above each pair of leaves, except the lowest. Blooms
in the summer.
An introduced weed of waste places and gardens.
In Wildwood it blooms near the Outdoor classroom and along the
A number of species in the Mint Family occur in
Wildwood; all have irregular flowers in whorls, paired leaves,
and square stems. Height, leaf shapes, and arrangement of
flowers above the leaves is distinctive of motherwort.