Hypericum prolificum

Hypericum prolificum
Conservation status
Secure  (NatureServe) [1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Malpighiales
Family:	Hypericaceae
Genus:	Hypericum
Section:	H. sect. Myriandra
Subsection:	H. subsect. Centrosperma
Species:	H. prolificum
Binomial name
Hypericum prolificum L. [2]

Hypericum prolificum, known as shrubby St. John's wort, ^[3] is a deciduous shrub in the genus Hypericum . It was named for its "prolific" number of stamens. ^[4]

Description

Hypericum prolificum is a shrub growing up to 2 m (6 ft 7 in) tall with elliptic to oblanceolate leaves up to 70 mm (2.8 in) long and 15 mm (0.59 in) broad. ^[5] The flowerheads have between 1 and 9 flowers, each 15–30 mm (0.59–1.18 in) across with 5 golden yellow petals and numerous stamens. ^[5] The ovary is usually three-parted, though may have up to five parts in some individuals. ^[5]

Distribution and habitat

Hypericum prolificum is native to the central and eastern United States and Ontario. ^{[3] [6]} Habitats include riparian areas, slopes, thickets, swamp edges, and oak woodlands. ^{[3] [7]}

Gallery

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  Young leaves emerging in early spring
• 
  In flower
• 
  Flower and buds close-up
• 
  In fruit

References

1. "NatureServe Explorer 2.0". explorer.natureserve.org.
2. "Hypericum prolificum L." ipni.org. International Plant Names Index. Retrieved 2018-09-23.
3. Robson, Norman K. B. (2015). "Hypericum prolificum". In Flora of North America Editorial Committee (ed.). Flora of North America North of Mexico (FNA). Vol. 6. New York and Oxford: Oxford University Press. Retrieved 2018-09-23– via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
4. "Hypericum prolificum". Go Botany. New England Wildflower Society. Retrieved 2018-09-23.
5. "Hypericum prolificum". hypericum.myspecies.info. Retrieved 2018-10-21.
6. NRCS. "Hypericum prolificum". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 2018-09-23.
7. Reznicek, A. A.; Voss, E. G.; Walters, B. S., eds. (February 2011). "Hypericum prolificum". Michigan Flora Online. University of Michigan Herbarium.