Hypericum punctatum

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spotted St. John's-wort [1]

Hypericum punctatum
Hypericum punctatum SEF.jpg
Photo by the Southeastern Flora Plant Database
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta - Flowering plants
Class: Magnoliopsida - Dicots
Order: Theales
Family: Clusiaceae
Genus: Hypericum
Species: H. punctatum
Binomial name
Hypericum punctatum
Lam.
HYPE PUNT DIST.JPG
Natural range of Hypericum punctatum from USDA NRCS Plants Database.

Taxonomic Notes

Synonyms: Hypericum punctatum Lamarck var. punctatum; Hypericum subpetiolatum E.P. Bicknell ex Small

Description

H. punctatum is a perennial forb/herb of the Clusiaceae family native to North America. [1]

Distribution

H. punctatum is found throughout the eastern United States and up into Eastern Canada, specifically Ontario and Quebec. [1]

Ecology

Habitat

H. punctatum has a low tolerance for drought. It is tolerant of shade. [1] It is commonly found in fields and woodland borders.[2] This species also prefers partial shade, and has a low tolerance for calcium carbonate.[3] Specimens of H. punctatum have been collected from upland pinelands that are annually burned, and other similar sandhill habitats that are well-drained.[4] It has also been recorded in outcrop oak hickory forests.[5]

Phenology

Flowers bloom in the early summer months.[1] It commonly flowers between June and September.[2]

Seed dispersal

This species is thought to be dispersed by gravity. [6]

Fire ecology

H. punctatum is not a fire resistant forb but has a mild tolerance to fire. [1]

Pollination

This species is considered by pollination ecologists to be of special value to bumble bees since the flowers attract such large numbers for pollination.[3]

Use by animals

It has been recorded to be eaten by white-tailed deer.[7]

Conservation and Management

It is considered vulnerable in the Canadian province Quebec, critically imperiled in Nebraska, and an exotic species in the Canadian province Newfoundland.[8]

Cultivation and restoration

Photo Gallery

References and notes

  1. Jump up to: 1.0 1.1 1.2 1.3 1.4 1.5 USDA Plant Database
  2. Jump up to: 2.0 2.1 Weakley, A. S. (2015). Flora of the Southern and Mid-Atlantic States. Chapel Hill, NC, University of North Carolina Herbarium.
  3. Jump up to: 3.0 3.1 [[1]] Lady Bird Johnson Wildflower Center. Accessed: May 28, 2019
  4. Jump up Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: May 2019. Collectors: Wilson Baker, Robert K. Godfrey, Jeffrey M. Kane, Roy Komarek, and R. A. Norris. States and Counties: Florida: Leon. Georgia: Thomas.
  5. Jump up Bostick, P. E. (1971). "Vascular Plants of Panola Mountian, Georgia " Castanea 46(3): 194-209.
  6. Jump up Kirkman, L. Katherine. Unpublished database of seed dispersal mode of plants found in Coastal Plain longleaf pine-grasslands of the Jones Ecological Research Center, Georgia.
  7. Jump up Atwood, E. L. (1941). "White-tailed deer foods of the United States." The Journal of Wildlife Management 5(3): 314-332.
  8. Jump up [[2]] NatureServe Explorer. Accessed: May 28, 2019