Round-fruited St. John’s-wort (Hypericum sphaerocarpum, Hypericaceae) in Canada

Authors

  • Michael J. Oldham Natural Heritage Information Centre, Ontario Ministry of Natural Resources and Forestry
  • William D. Van Hemessen
  • Sean Blaney Atlantic Canada Conservation Data Centre

DOI:

https://doi.org/10.22621/cfn.v132i4.2055

Keywords:

Round-fruited St. John’s-wort, Hypericum sphaerocarpum, Hypericaceae, Ontario, Canada, range extension, railway

Abstract

Round-fruited St. John’s-wort (Hypericum sphaerocarpum), a native North American herbaceous, perennial vascular plant, is reported from four sites in southern Ontario, Canada. All four sites are along abandoned railway lines. Although the rich association of native flora suggests native status at one site, H. sphaerocarpum is believed to be introduced elsewhere in its Canadian range in Ontario.

Author Biographies

Michael J. Oldham, Natural Heritage Information Centre, Ontario Ministry of Natural Resources and Forestry

Provincial Botanist

Sean Blaney, Atlantic Canada Conservation Data Centre

Executive Director & Senior Scientist

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Published

2019-07-11

Issue

Vol. 132 No. 4 (2018)

Section

Notes

License

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