Epilobium Genus willow herb Onagraceae

Epilobium coloratum plant in bloom. R. Schipper. Herbarium, U. Michigan. michiganflora.net

Epilobium coloratum plant in bloom. R. Schipper. Herbarium, U. Michigan. michiganflora.net (Accessed 5/2018).

Epilobium is a genus of perennial (ours) herbs. 

Epilobium coloratum leaves.www.ct-botanical-society.org.Janet Novak

Epilobium coloratum leaves.www.ct-botanical-society.org.Janet Novak (Accessed 12/2014).

Leaves mostly opposite, sometimes alternate in inflorescence. 

Epilobium ciliatum flower close-up. By Arthur Haines. Copyright © 2018. New England Wild Flower Society. gobotany.newenglandwild.org

Epilobium ciliatum flower close-up. By Arthur Haines. Copyright © 2018. New England Wild Flower Society. gobotany.newenglandwild.org (Accessed 5/2018).

 

 

 

 

 

Epilobium coloratum calyx. David G. Smith. Discover Life. discoverlife.org

Epilobium coloratum calyx. David G. Smith. Discover Life. discoverlife.org (Accessed 5/2018).

Flowers white to pink, sometimes purple, radially symmetrical, 4 petals, 4 calyx lobes, stamens 8, style short, ovary inferior, linear. 

 

 

Epilobium angustifolium Fireweed seed stage.commons.wikimedia.org

Epilobium angustifolium Fireweed seed stage.commons.wikimedia.org (Accessed 1/2017).

 

 

 

 

 

 

 

 

Fruit dry, a 4-parted linear capsule splitting open to release numerous plumed seeds.