Sonchus asper,
a biennial herb native to Europe, grows wild on roadsides or in
wastelands in various districts; its stems are hollow, with many
ridges, and reach heights of 0.5-1m. Leaves are 15-20cm long, with
bases bulging out round and embracing the stems, and serrations grow
to sharp prickles to hurt. Flower heads are yellow and about 2cm
long; peduncles and involucral bracts occasionally have glandular
hairs. Bloom time: April-October.
Wild plants in and around Shimane
島根とその周辺の野生植物
