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McKenzie Conservation Area Wildflowers McKenzie Conservation Area Wildflowers
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Common St. John’s Wort

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Scientific Name: Hypericum perforatum
Family Name: Hypericaceae
Bloom Period: Summer
Life Span: Perennial
Height: Up 30-100 cm tall
Habitat: Found in waste lands, roadsides, and pastures.
Leaf Description: Opposite, lane-shaped, with purplish-black dots.
Flower and Petal Description: Yellow petals with purplish-black spots along edges; linear sepals, 70-100 stamens, divided into 3 distinct groups. Loose clusters at the ends of paired stalks.
Stem Description: Multiple stalks
Fruit Description: Pointed capsules releasing pitted, brown seeds.
Medicinal Uses: *Poisonous to livestock and difficult to eradicate. Made into teas for calm nerves.
This flower is non-native to the area.
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