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St Johns Wort

Hypericum perforatum

Annual; stems are branching, green to rust-colored and woody at the base. Yellow flowers with black dots on the edged of the petals. Opposite leaves with scattered translucent dots that make the leaf look perforated when held up to light.

Plant Details

Habitat NotesPastures, rangeland, prairies, roadsides and disturbed sites.
Mature Height1-3’
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