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Xanthium canadense: An
originating in North America, annually broadly naturalized in
various districts, many with stems tingeing brown-purple, grow to
0.5-2m in height. Leaves, with long peduncles, are of alternate
phyllotaxis, in an ovate or broad ovate shape, shallowly cleft
halfway in 3-5, with uneven serrations on margins and sandy lower
and upper surfaces. Dioecious: Male flower heads put themselves in
the inflorescences that have emerged from axils, and female flower
heads are at the bases of the male inflorescences. Bloom time:
August-November. |
Wild plants in and around Shimane
島根とその周辺の野生植物
