Epilobium coloratum Biehler
Purpleleaf willowherb, cinnamon willow-herb
Cinnamon willow-herb, a North American native, is a member of the evening primrose family.
Identification: This species is quite variable. They have a vaguely disorganized look about them. Plants are 12-36" (30-91 cm) tall, erect, sometimes branching. Stems may be square or round. Leaves may be opposite or alternate. They attach directly to the leaf (“sessile”) or by a short stem, called the petiole. Leaves are toothed, narrow (“lanceolate”), up to 4" (10 cm) × ½" (1.3 cm). Flowers are ¼" (8.5 mm) around, with four white or pale pink petals, each petal with two lobes. The flowers are in racemes—loose clusters—and they appear from July to August. Each flower tops a “stem” about 2" (6 cm) long that develops into a skinny fruit, like a straight bean, about ¹/₃₂" (1.3 mm) around.
Epilobium coloratum on delawarewildflowers.org
Epilobium coloratum at Illinois Wildflowers
Epilobium coloratum on Plants for a Future, a resource and information centre for edible and otherwise useful plants
Epilobium coloratum on the USDA Plants Database
Epilobium coloratum on the Connecticut Botanical Society's Connecticut wildflowers site
Epilobium coloratum at the University of Wisconsin's Robert W. Freckmann Herbarium
Epilobium coloratum at the Lady Bird Johnson Wildflower Center
Epilobium coloratum at the University of Michigan Herbarium
Epilobium coloratum description by Thomas H. Kent, last updated 25 May 2020.