close up of ageratina adenophora flowers growing the the forests of santa cruz mountains, san francisco bay area; this plant is

above adenophora adenophorum aerial ageratina america area bay bloom blooming blossom botany ca california central closeup crofton cruz eupatorium felton flora floral flower forest francisco garden glandulosum green invasive macro mexican mountains natural nature noxious ornamental plant san santa snakeroot spring sticky thoroughwort tiny toxic usa view weed white wild wildflowers woods