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森林総研トップ

Home > Highlights from the garden > Japanese Thistle

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Japanese Thistle

 

English name 

Japanese Thistle(JPG:249KB)

Scientific name

Cirsium japonicum Fisch. ex DC.  

Best season

May, June, July, August

Commentary

A perennial plant found in the Cherry Tree Preservation Forest. This thistle blooms from early summer and on through the summer, and the upward-facing flowerhead is made up of many small, cylindrical flowers bunched together and surrounded by involucres, making it look like a single flower. The involucres secrete mucus, so are sticky. The leaves have sharp prickles. The fruit has feathery pappi, and are bone on the wind.

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