Sonchus oleraceus is a
biennial growing on roadsides or fringe of fields; stems are hollow,
with many ridges. Leaves are soft, 15-25cm long, 5-8cm wide, and
pinnately cleft, with uneven serrations on margins. The serration's
tips can be pointed but do not hurt, leaf bases become triangular,
and both lower corners project and embrace the stems. Flower heads
are yellow, about 2cm across, with many ligulate flowers. Boom time:
April-July.
Wild plants in and around Shimane
島根とその周辺の野生植物
