Hypericaceae
Kalm's St. John's-wort
Hypericum kalmianum
- Family
- Hypericaceae
- Genus
- Hypericum
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Common names
By language (3)
- Chinese
- 美洲金丝桃
- English
- Kalm's St. John's-wort, Kalm's St. johnswort, Kalm's St. John's wort
- Finnish
- Kalminkuisma
Synonyms
- Hypericum kalmianum var. elongatum J.McNab
- Hypericum lanatum Rottb.
- Norysca kalmiana (L.) K.Koch
- Norysca kalmiana (L.) K.Koch ex Dippel
Characteristics
- Growth habit
- Shrub
- Lifespan
- Perennial
- In the US and Canada
- Canada: native, Lower 48 states: native
Photos
Photo: Daderot, CC0, from Wikimedia Commons 
Photo: Daderot, CC0, from Wikimedia Commons Photo: Jevan, CC BY-SA 4.0, from Pl@ntNet via GBIF Photo: mily rolland, CC BY-SA 4.0, from Pl@ntNet via GBIF 
Photo: peganum from Small Dole, England, CC BY-SA 2.0, from Wikimedia Commons Photo: eric altick, CC BY-SA 4.0, from Pl@ntNet via GBIF 
Photo: peganum from Small Dole, England, CC BY-SA 2.0, from Wikimedia Commons Photo: Sylvie Bélanger, CC BY-SA 4.0, from Pl@ntNet via GBIF 
Photo: peganum from Small Dole, England, CC BY-SA 2.0, from Wikimedia Commons Photo: jonathan Baillie, CC BY-SA 4.0, from Pl@ntNet via GBIF 
Photo: peganum from Small Dole, England, CC BY-SA 2.0, from Wikimedia Commons Photo: sasha vuksinic, CC BY-SA 4.0, from Pl@ntNet via GBIF
More in Hypericum
- Common St. JohnswortHypericum perforatumHypericaceae
- Spotted St. JohnswortHypericum maculatumHypericaceae
- Sweet-amberHypericum androsaemumHypericaceae
- Hairy St John's-wortHypericum hirsutumHypericaceae
- Trailing St. JohnswortHypericum humifusumHypericaceae
- Mountain St. John's WortHypericum montanumHypericaceae
- PeterwortHypericum tetrapterumHypericaceae
- Aaron's beardHypericum calycinumHypericaceae
- Slender St John's-wortHypericum pulchrumHypericaceae
- Goat St John's wortHypericum hircinumHypericaceae
- Goldencup St. John's wortHypericum patulumHypericaceae
- Hypericum triquetrifoliumHypericaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.