the arachnoid burdock arctium tomentosum.wild plants of siberia

burdock wild plants siberia arachnoid arctium flower nature bloom flora natural blooming plant purple green blossom meadow medicinal floral pink summer woolly weed thorn prickle herbaceous medicine botany herb tomentosum bud healing asteraceae macro thorny thistle biennial field garden closeup leaf herbs prickly herbal outdoor large close tumentosom head