NameThatPlant.net: Steironema tonsum

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Ericales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Steironema tonsum FAMILY Primulaceae Go to FSUS key

Dig deeper at SERNEC, a consortium of southeastern herbaria.

Read more about Southern Loosestrife at Vascular Plants of North Carolina.

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Lysimachia tonsa FAMILY Primulaceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 147-02-002:

Lysimachia tonsa FAMILY Primulaceae

COMMON NAME:
Southern Loosestrife, Appalachian Loosestrife

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Steironema tonsum FAMILY Primulaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Lysimachia tonsa FAMILY Primulaceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 147-02-002:
Lysimachia tonsa FAMILY Primulaceae

3301

Forb
Perennial

Habitat: Moist to dry upland forests, especially over calcareous or mafic rocks, per Weakley's Flora

Native to the Carolinas & Georgia

Uncommon in GA Mountains (rare elsewhere in GA-NC-SC)

CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.

LEAVES:
Simple
Opposite

FLOWER:
Spring/Summer
Yellow
Radially symmetrical
5-lobed calyx
5-lobed rotate corolla
5 stamens & 5 staminodia, united into a very short tube
Superior ovary

Flowers solitary in upper leaf axils

FRUIT:
Summer/Fall
Capsule

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

If a search such as "Carex leptalea var. leptalea" doesn't deliver the results you want, try "Carex leptalea".
Or, to minimize chances of a misspelling, try just "Carex le".

Less is more: If "pencil flower" doesn't deliver the results you want, try "pencil".