Hypericum nudiflorum
pretty st. john's-wort, early st. johnswort, naked st. johnswort
Family
Clusiaceae
Leaf Arrangement
opposite
Leaf Margin
entire
Leaf Type
simple
Leaf Shape
oblong, elliptic, lanceolate, ovate
Growth Form
forb, shrub
Flower Color
yellow
Flower Petals
5
Flower Month
June - August
Height (meters)
0.5 - 2.0
Milky Sap
No
Armed/Unarmed
Unarmed
Origin
native
Lifespan
perennial
Growing Season
Warm season
Wetland Class
FACW
Prairie Coefficient of Conservatism
7
Field Characters
Similar to Hypericum cistifolium but can be distinguished by its leaves which are ovate-lanceolate and well over 1 cm wide, while Hypericum cistifloium has leaves that are linear-oblong and less than 1 cm wide. The Hypericums have punctate or gland dotted leaves that are opaque if held up to the light. Leaves without an articulation at the base. Leaves not linear.
Cultural Information
Seed germination is improved by cold/moist stratification (Steffen 1997).
Natural History
Found typically in sandy soils, in woods, swamps and prairies or Louisiana and east Texas.
Habitat
Moist sandy or low woods, thickets, swamps, or stream banks.