Tall Joe-pye-weed

Flowering heads are small, each having 5 white disc flowers. Ray flowers are absent. Involucral bracts are green, hairy, elongate, and have rounded tips. The inflorescence is highly branched, has many small flowering heads, and is slightly convex, or flat-topped, when viewed from the side. The leaves are in pairs and attach by winged petioles. Leaves are elliptical, tapering equally toward the base and the tip. Leaf margins are smooth toward the base, but have sharp teeth toward the tip. Leaves have 3 conspicuous veins that run parallel to the leaf edges. Occurs from August through September in dry wooded openings. Native to N. A.