Native & Naturalized Plants of the Carolinas & Georgia


725

Forb
Perennial

Non-native: Europe
Documented growing wild in GA NC SC

Common

Look for it in fields, pastures, roadsides, woodland borders, per Weakley's Flora

map
To see a detailed map, click here


Invasive?

This plant may be causing problems in natural areas outside its native range, according to authorities such as:

Kentucky Exotic Pest Plant Council, 2013
Tennessee Exotic Pest Plant Council, 2009

 

full sun partial shade

LEAVES:
Simple
Opposite

FLOWER:
Summer/Fall
Yellow
Bisexual
Radially symmetrical
5 persistent sepals
5 petals
Superior ovary

FRUIT:
Summer/Fall
Capsule

 

TO LEARN MORE about this plant, look it up in a good book!



Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Fabids: Malpighiales

WEAKLEY'S FLORA (11/30/12):
Hypericum perforatum   FAMILY Hypericaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Hypericum perforatum   FAMILY Clusiaceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (1968) 126-01-026:
Hypericum perforatum   FAMILY Hypericaceae

 

COMMON NAME:
European St. Johnswort


Click or hover over the thumbnails to see larger pictures.

image of Hypericum perforatum

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_hype_001_lvd

        

image of Hypericum perforatum

Tim Spira    tpshperforatum2

June        

image of Hypericum perforatum

Tim Spira    tpshperforatum2_2

June        

Leaves sessile, with translucent dots that look like "windows", per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.

image of Hypericum perforatum

JK Marlow    jkm090707_010

July    Avery County    NC

The Roan Highlands

image of Hypericum perforatum

JK Marlow    jkm090707_015

July    Avery County    NC

The Roan Highlands

Numerous flowers borne in a compound cyme, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians.

image of Hypericum perforatum

JK Marlow    jkm090707_016

July    Avery County    NC

The Roan Highlands

Flowers 3/4"-1" wide, with black "stitching" on the margins of petals, per Wildflowers of the Southern Mountains.

image of Hypericum perforatum

JK Marlow    jkm090707_020

July    Avery County    NC

The Roan Highlands

Five petals, to 0.4" long, black-dotted near the margin, per Wildflowers of Tennessee.