Hypericaceae

Cedarglade St. Johnswort

Hypericum frondosum Michx.

Family: Hypericaceae
Genus: Hypericum

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Cedarglade St. Johnswort (Hypericum frondosum) — FlowerPhoto: sblumen, CC BY 4.0, from iNaturalist

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Common names

By language (2)

Chinese: 密叶金丝桃
English: Cedarglade St. Johnswort

Synonyms

Brathydium aureum K.Koch
Brathydium rugelianum (Kunze) K.Koch
Hypericum amoenum Pursh
Hypericum aureum W.Bartram
Hypericum prolificum var. aureum (K.Koch) Koehne
Hypericum rugelianum Kunze
Hypericum splendens Small

Flowers

In flower: May to July (from 54 flowering iNaturalist observations worldwide)

Characteristics

Growth habit: Shrub, Subshrub
Lifespan: Perennial
In the US and Canada: Lower 48 states: native

Photos

FlowerPhoto: sblumen, CC BY 4.0, from iNaturalist
FlowerPhoto: sblumen, CC BY 4.0, from iNaturalist
FlowerPhoto: Curtis Burke, CC BY 4.0, from iNaturalist
FlowerPhoto: John Kees, CC0, from iNaturalist
Photo: Sesamehoneytart, CC BY-SA 3.0, from Wikimedia Commons
Photo: Niyan Shehan, CC0, from iNaturalist
Photo: William Coville, CC BY-SA 4.0, from Pl@ntNet via GBIF
Photo: Photo by David J. Stang, CC BY-SA 4.0, from Wikimedia Commons
Photo: bustercoe, CC BY-SA 4.0, from Pl@ntNet via GBIF
Photo: Brian Finzel, CC BY-SA 4.0, from iNaturalist
Photo: Photo by David J. Stang, CC BY-SA 4.0, from Wikimedia Commons
Photo: richcolvin, CC BY-SA 4.0, from Pl@ntNet via GBIF

More in Hypericum

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.