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Image Subject Name Scientific Name Description
5307061 common St. Johnswort Hypericum perforatum Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 2: 533.
1316054 Warty St. John's wort Hypericum balearicum Warty St. John's wort Hypericum balearicum
1552178 common St. Johnswort Hypericum perforatum in flower
5475341 Fraser's marsh St. Johnswort Triadenum fraseri Triadenum fraseri - marsh St. John's wort - mostly fruit; mid-August
5474902 large St. Johnswort Hypericum majus Hypericum majus - 5 nerved leaves and long sepals were identifying features
5474899 large St. Johnswort Hypericum majus Hypericum majus - 5 nerved leaves and long sepals were identifying features
0023010 common St. Johnswort Hypericum perforatum
1120410 St. Peterswort Hypericum crux-andreae October. Photo from Forest Plants of the Southeast and Their Wildlife Uses by J.H. Miller and K.V. Miller, published by The University of Georgia Press in cooperation with the Southern Weed Science Society.
1120146 pineweed Hypericum gentianoides August. Photo from Forest Plants of the Southeast and Their Wildlife Uses by J.H. Miller and K.V. Miller, published by The University of Georgia Press in cooperation with the Southern Weed Science Society.
1120145 pineweed Hypericum gentianoides August. Photo from Forest Plants of the Southeast and Their Wildlife Uses by J.H. Miller and K.V. Miller, published by The University of Georgia Press in cooperation with the Southern Weed Science Society.
5436110 common St. Johnswort Hypericum perforatum flower
5436112 common St. Johnswort Hypericum perforatum plant
0024070 common St. Johnswort Hypericum perforatum Mature plant
1459527 common St. Johnswort Hypericum perforatum
1120408 St. Andrew's cross Hypericum hypericoides March. Photo from Forest Plants of the Southeast and Their Wildlife Uses by J.H. Miller and K.V. Miller, published by The University of Georgia Press in cooperation with the Southern Weed Science Society.
2187026 common St. Johnswort Hypericum perforatum
1120407 St. Andrew's cross Hypericum hypericoides September. Photo from Forest Plants of the Southeast and Their Wildlife Uses by J.H. Miller and K.V. Miller, published by The University of Georgia Press in cooperation with the Southern Weed Science Society.
1624011 common St. Johnswort Hypericum perforatum St. John's Wort, native to Eurasia, is a serious problem in parts of the West where it displaces native plants that are important in maintaining soil nutrients, microbial activity, and water cycling.
1196111 common St. Johnswort Hypericum perforatum
5426892 coastal plain St. Johnswort Hypericum brachyphyllum Clinch County
5426889 coastal plain St. Johnswort Hypericum brachyphyllum foliage; flowers; Clinch County
5396194 common St. Johnswort Hypericum perforatum
5390669 dwarf St. Johnswort Hypericum mutilum Habit
5374981 dwarf St. Johnswort Hypericum mutilum
1542413 common St. Johnswort Hypericum perforatum
5358667 common St. Johnswort Hypericum perforatum Close-up view of the flower of St. Johnswort (Hypericum perforatum).
1559304 common St. Johnswort Hypericum perforatum
1559299 common St. Johnswort Hypericum perforatum pellucid dots
1559300 common St. Johnswort Hypericum perforatum in flower
1559297 common St. Johnswort Hypericum perforatum in flower
1559296 common St. Johnswort Hypericum perforatum in flower
1561170 common St. Johnswort Hypericum perforatum photo taken 6 July 1994
1552174 St. Andrew's cross Hypericum hypericoides
5160003 common St. Johnswort Hypericum perforatum plant
5160002 common St. Johnswort Hypericum perforatum habit in pots
1324013 spotted St. Johnswort Hypericum punctatum Microscopic view of a hypericin-containing gland of St. John's-wort, Hypericum punctatum.
0023011 common St. Johnswort Hypericum perforatum

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