|Being a biennial herb
originating in North America, Erigeron canadensis grows wild
on roadsides, uncultivated lands, etc. Stems grow to 1-2m in height,
with coarse hairs. Radical leaves are spatulate, and on-stem leaves,
7-10cm long, 0.5-1.5cm wide, linear, densely surround the stems in
the opposite arrangements, with sparse serrations on margins. Small
flower heads set themselves in panicles on the upper parts of the
branches. Bloom time: August-October.