New York Metropolitan Flora

Hypericum kalmianum L. - Kalm's St. John's-wort

Excluded species

Non-native

By Science Staff

Not peer reviewed

Last Modified 01/26/2012

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Common Names

Kalm's St. John's-wort

General Discussion

This species is native to the Great Lakes Region. There are a couple of old reports from our area- New York Co., NY and Middlesex Co., NJ- but no specimens have been seen; and these may represent a mis-identification of another Hypericum species or a label typo (geo-coding error).