Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Fabids: Malpighiales
WEAKLEY'S FLORA (4/24/22):
Hypericum graveolens
FAMILY
Hypericaceae
NEW! Click to go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Mountain St. Johnswort at Vascular Plants of North Carolina.
This and the related H. mitchellianum (another narrow endemic to the Southern Appalachians) hybridize, forming local hybrid populations with intermediate characteristics (Culwell 1970), per Weakley's Flora (2022).
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Hypericum graveolens
FAMILY
Clusiaceae
SYNONYMOUS WITH
Flora of North America
Hypericum graveolens
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 126-01-030:
Hypericum graveolens
FAMILY
Hypericaceae
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Hypericum graveolens
COMMON NAME:
Mountain St. Johnswort
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_hygr3_001_lvd
)
JK Marlow jkm0407w_14
July Mitchell County NC
The Roan Highlands
)
JK Marlow jkm070721_020
July Carter County TN
The Roan Highlands
A narrow Southern Appalachian endemic, per Weakley's Flora.
)
JK Marlow jkm070721_022
July Carter County TN
The Roan Highlands
Sepals &petals without black lines, round black glands only along petal margin, per Weakley's Flora.
)
JK Marlow jkm070721_023
July Carter County TN
The Roan Highlands
Inflorescence few-flowered cymes at the ends of branches, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.
)
JK Marlow jkm0508d_03
August Transylvania County NC
Blue Ridge Parkway
)
JK Marlow jkm190914_1531
September Swain County NC
Great Smoky Mountains National Park
Styles usually 5.6-10mm long (vs. H. mitchellianum usually 1.9-2.9mm long), per Weakley's Flora.
)
JK Marlow jkm190914_1533
September Swain County NC
Great Smoky Mountains National Park
WEAKLEY'S FLORA (4/24/22):
Hypericum graveolens
FAMILY
Hypericaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Hypericum graveolens
FAMILY
Clusiaceae
SYNONYMOUS WITH
Flora of North America
Hypericum graveolens
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 126-01-030:
Hypericum graveolens
FAMILY
Hypericaceae
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Hypericum graveolens
1867
Forb
Perennial
Native to North Carolina
Rare, endemic to the Southern Appalachians
Habitat: Grassy balds, grassy openings, forests, at high elevations (1200 m or more), per Weakley's Flora
NEW! Click here to see a map from Weakley's Flora of the Southeastern US showing range and abundance.
Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)
LEAVES:
Simple
Opposite
FLOWER:
Summer
Yellow
Bisexual
Radially symmetrical
5 persistent sepals
5 petals
Superior ovary
FRUIT:
Summer
Capsule
TO LEARN MORE about this plant, look it up in a good book!
- Great Smoky Mountains Wildflowers p122
- Wildflowers of Tennessee p065
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians p088
- Wildflowers of the Southern Mountains p097