Canada goldenrod

Canada goldenrod is a perennial distinguished by numerous small yellow flowers located in pyramid-shaped clusters at the top of individual, unbranched, leafy stems. Flowers are crowded onto numerous backward-curved stalks that originate at a central axis and are arranged more or less horizontally. Leaves are lance-shaped, tapered at both ends, hairless on the upper surface, hairy underneath, and sharply toothed on the edge. Leaves are described as being 3-nerved, meaning the midrib and 2 parallel lateral veins are prominent. Plants reproduce by way of short rhizomes (horizontal underground stems) emerging from the base of aerial stems and by wind dispersed seeds.