https://www.americansouthwest.net/plants/wildflowers/marrubium-vulgare.html
White Horehound, Marrubium Vulgare
White wildflowers of western USA: Marrubium vulgare, white horehound: a Eurasian species, established across much of the West; it is most common in coastal...
white horehoundmarrubium
https://gobotany.nativeplanttrust.org/species/marrubium/vulgare/
Marrubium vulgare (white horehound): Go Botany
white horehoundmarrubiumgobotany