Flower/fruit:
1
inch bright purple-pink flowers have a glandular, hairy calyx tube;
4 sepals united to form an urn-shaped to vase-like tube with four
lobes at the summit; flower opens in the morning and often drops
petals by mid-day
Flowering
Season: Summer, fall
Foliage:
Simple or branched 4-sided
stem has narrow wings; 1 to 2 inch oval to egg-shaped opposite leaves;
small bristly teeth on the margins
Site:
Moist to wet soil; sun; found
in bogs and moist, open sandy places
