https://www.uksouthwest.net/wildflowers/lamiaceae/ballota-nigra.html
UK Wildflowers - Lamiaceae - Ballota Nigra, Black Horehound
Black horehound, ballota nigra, from the lamiaceae family: stalked, rough-hairy leaves and whorls of dull purple flowers with toothed calyces
ballota nigrablack horehoundwildflowerslamiaceae