common bistort flowers and leaf in color drawing

plant branch leaf flower tree green twig drawing produce grass sketch line herb pattern food art font alternative medicine aromatherapy background bloom blooming blossom botanic botanical botany cosmetic cosmetology decor decoration decorative design element emblem floral hand drawn health healthful healthy herbal tea herbs ingredient ingredients isolated label logo medical medicinal plants nature petal pharmacy set silhouette stem common bistort vector polygonum bistorta outline bistorte flowers color adderwortel contour