flax-leaf fleabane (erigeron bonariensis). basal leaf closeup

argentine fleabane asteraceae belarus flora compositae conyza bonariensis erigeron abaxial asthma weed black background botanical science botany closeup flaxleaf focus stacking hairy horseweed indumentum lamina leaf blade vein macro nature petiole plants venation virtual herbarium wavyleaf petiolate oblonglanceolate oblanceolate strigose hispidulous serrate pinnatilobed