close up of small white flowers on green leaves. natural background. galinsoga quadriradiata. selective focus

flower white wild field flora floral green leaf nature background blossom blooming botany natural plant medicine soldier weed stem petal hairy pharmacy vegetal summer asteraceae invasive herb herbal grass yellow agriculture agronomist bloom closeup garden outdoor galinsoga alternative colours growth flowers shaggy pistil color beauty medicinal foliage parviflora botanical close small leaves background quadriradiata selective focus daisy-like among large leaves