: Hairy willowherb, codlins and cream, great hairy willow-herb
: Most readily surveyed from July to September while in bloom.
: Herbaceous perennial, coarse, spreading rhizomes; grows from 0.5-2 m (1.6-6.5 ft) in height.
: Fuzzy, mostly opposite, lanceolate and slightly clasping.
: Erect; fuzzy.
: Numerous flowers, 4 cleft stigma, 4 notched pink purple or white petals, 3 cm (0.75 in) across.
Fruit and seeds
: Seed pod, linear, elongate, splitting to reveal seeds with tufts of fine hairs.
: Native to Eurasia. Found in wet soils, in open wetland to semi-aquatic settings, meadows, marsh, and edges of lakes, ponds, streams, and rivers.
: Primarily by rhizomes, although it also reproduces by wind dispersed seed.
: Fireweed (Chamerion angustifolium
) differs from European fireweed in that its leaves are longer, measuring 15-20 cm(6-8 in) and it does not have pubescent leaves.
Monitoring and rapid response
: Hand-pulling or cutting; effectively controlled using any of several readily available general use herbicides.
: The Michigan Natural Features Inventory
(MNFI) has partnered with MISIN to provide the information in this fact sheet. Species images and/or information were used with permission from "A Field Identification Guide to Invasive Plants in Michigan's Natural Communities
" and "A Field Guide to Invasive Plants of Aquatic and Wetland Habitats for Michigan