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- ›Centrosperma
Kalm's St. John's-wort
Hypericum kalmianum
Hypericum kalmianum, commonly called Kalm's St. Johns wort or Kalm's St. Johnswort, is a small, yellow-flowering shrub native to the Great Lakes region in the northern United States and southern Canada. It is in the St. John's wort family, Hypericaceae. Hypericum kalmianum was named after its discoverer, Swedish botanist Pehr Kalm (1715-1779).
Where it lives
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
Drag the globe to turn it. Dots are where records exist, not a range map; darker means more records.
In the stacks
Searching the stacks…
Every page naming Hypericum kalmianum in the Biodiversity Heritage Library →
This page is assembled live from iNaturalist, GBIF, Wikipedia, the Source Library and the Internet Archive. It is not yet part of the hand-edited codex. iNaturalist taxon 635324.