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 Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Lysimachia tonsa
SYNONYMOUS WITH Flora of North America north of Mexico, vol. 8 (2009)
Lysimachia tonsa
SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)
Lysimachia tonsa
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 147-02-002:
Lysimachia tonsa FAMILY Primulaceae
(?) SYNONYMOUS WITH Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Steironema intermedium
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Steironema tonsum
COMMON NAME:
Southern Loosestrife, Appalachian Loosestrife
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_stin6_001_lvd
)
Richard and Teresa Ware rtw_l_tonsa_7
June
Corolla lobe margin usually entire or sometimes erose distally, apex apiculate, per Flora of North America.
)
Richard and Teresa Ware rtw_l_tonsa_c
July
Petioles without cilia or rarely sparse cilia near stem; lvs mostly ovate, per Wildflowers of the Eastern United States (Duncan & Duncan, 1999).
)
Richard and Teresa Ware rtw_lysimachia_tonsa
July
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
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Lysimachia tonsa
SYNONYMOUS WITH
Flora of North America north of Mexico, vol. 8
Lysimachia tonsa
SYNONYMOUS WITH
Floristic Synthesis of North America (Kartesz, 1999)
Lysimachia tonsa
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 147-02-002:
Lysimachia tonsa
FAMILY
Primulaceae
(?) SYNONYMOUS WITH
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Steironema intermedium
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Steironema tonsum
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!
- Wildflowers of the Eastern United States (Duncan & Duncan, 1999) p062
- Wildflowers of Tennessee (Carman, 2005) p105
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p134
- Wildflowers of the Southern Mountains (Smith, 1998) p121
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".