late boneset

Also known as Late Thoroughwort, Late-Flowering Thoroughwort

Late boneset fills fields and roadsides with dense, flat-topped clusters of tiny white flowers from late summer through autumn. Its robust, hairy stems carry lance-shaped leaves with distinct coarse teeth, providing an essential late-season nectar source for native bees, wasps, and butterflies. Highly adaptable to poor or damp soils, this vigorous perennial plays a vital ecological role in supporting pollinators when few other native wildflowers remain in bloom.