set of drawings mullein tall in different colors. hand drawn . latin name verbascum densiflorum bertol

illustration herb plant mullein flower floral leaf botany botanical art white nature medicinal herbal flora drawing garden vintage black medicine stem natural verbascum common ancient etching bloom blossom summer antique element engraved engraving foliage picture perennial seed gardening sketch organic artwork root old line decoration design graphic meadow set vector drawings tall different colors hand drawn latin name densiflorum bertol colors illustration bertol