stiff willowherb
Epilobium rigidum Hausskn.
Epilobium rigidum Hausskn. is a species in the family Onagraceae. It is known as stiff willowherb in English and was first described in 1879.
Other common names
stiff willowherb
Distribution
California · Oregon
Synonyms
Epilobium rigidum var. canescens