Hypericaceae
Brushy mountain St. johnswort
Hypericum radfordiorum
- Family
- Hypericaceae
- Genus
- Hypericum
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Common names
By language (1)
- English
- Brushy mountain St. johnswort
Flowers
- In flower
- June to August (from 9 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Perennial
- In the US and Canada
- Lower 48 states: native
Photos
FlowerPhoto: Brandon Wheeler, CC0, from iNaturalist 
FlowerPhoto: Carol Ann McCormick, CC BY 4.0, from iNaturalist 
FlowerPhoto: jfox16, CC BY 4.0, from iNaturalist 
FlowerPhoto: Carol Ann McCormick, CC BY 4.0, from iNaturalist 
FruitPhoto: Carol Ann McCormick, CC BY 4.0, from iNaturalist 
FruitPhoto: Carol Ann McCormick, CC BY 4.0, from iNaturalist 
Photo: Alan Weakley, CC0, from iNaturalist 
Photo: harrier, CC BY 4.0, from iNaturalist 
Photo: Alan Weakley, CC0, from iNaturalist 
Photo: Brandon Wheeler, CC0, from iNaturalist 
Photo: Alan Weakley, CC0, from iNaturalist 
Photo: Carol Ann McCormick, CC BY 4.0, from iNaturalist
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 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.