Valeriana dioica explained

Valeriana dioica, the marsh valerian, is a species of flowering plant in the family Caprifoliaceae, native to North America, Europe and Anatolia.^[1] It is typically found in calcareous fens.^[2] It is a dioecious species, with male and female flowers on separate individuals, and it is pollinated by small flies.^[3]

Varieties

The following varieties are currently accepted:^[1]

• Valeriana dioica var. dioica
• Valeriana dioica var. sylvatica S.Watson – northern North America

Notes and References

1. Web site: Valeriana dioica L. . . 2017 . Plants of the World Online . Board of Trustees of the Royal Botanic Gardens, Kew . 28 December 2020.
2. Germination requirements of the subordinate fen meadow species Valeriana dioica L. . 2019 . Rasran . Leonid . Eisenmann . Cornelia . Wagentristl . Regina . Bernhardt . Karl-Georg . Folia Geobotanica . 54 . 1–2 . 125–138 . 10.1007/s12224-019-09354-3 . 208044334 . free. 2019FolGe..54..125R .
3. 10.1016/j.actao.2005.07.001 . Distance-dependent pollen limitation of seed set in some insect-pollinated dioecious plants . 2005 . De Jong . Tom J. . Batenburg . Judith C. . Klinkhamer . Peter G.L. . Acta Oecologica . 28 . 3 . 331–335 . 2005AcO....28..331D.