Cirsium japonicum, a perennial herb with a height of
0.5-1m, is the only thistle that booms in the springtime and the
most common across the country. Leaves, pinnatifid radical ones at
the bases of the plant, remain in flowering time, and on-stem
leaves, with sharp prickles on the margins, embrace the stems with
the ends. Flower heads, 4-5cm in diameter, red-purple, bloom
upwards. Involucres are 2-4cm across-spherical shape; the bracts are
sticky, facing straight upward. Bloom time May-August.
Wild plants in and around Shimane
島根とその周辺の野生植物
