Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Ericales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Steironema quadriflorum
FAMILY
Primulaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Four-flower Loosestrife at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Lysimachia quadriflora
FAMILY
Primulaceae
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Lysimachia quadriflora
SYNONYMOUS WITH Flora of North America
Lysimachia quadriflora
SYNONYMOUS WITH Vascular flora of Illinois (Mohlenbrock, 2014)
Steironema quadriflorum
SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)
Lysimachia quadriflora
SYNONYMOUS WITH Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Steironema quadriflora
COMMON NAME:
Prairie Loosestrife, Four-flower Loosestrife, Smooth Loosestrife
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide pnd_lyqu_003_lvd
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_stqu_001_lvd
)
Richard and Teresa Ware rtw_l_quadriflora_2
June
Leaves stiff, ascending, linear. Flowers concentrated mostly in upper plant, per Wildflowers of the Southern Mountains (Smith, 1998).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Steironema quadriflorum
FAMILY
Primulaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Lysimachia quadriflora
FAMILY
Primulaceae
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Lysimachia quadriflora
SYNONYMOUS WITH
Flora of North America
Lysimachia quadriflora
SYNONYMOUS WITH
Vascular flora of Illinois (Mohlenbrock, 2014)
Steironema quadriflorum
SYNONYMOUS WITH
Floristic Synthesis of North America (Kartesz, 1999)
Lysimachia quadriflora
SYNONYMOUS WITH
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Steironema quadriflora
3302
Forb
Perennial
Habitat: Wet meadows and calcareous fens, stream banks, prairie meadows, per Weakley's Flora
Native to Georgia & possibly North Carolina
Rare
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Simple
Opposite
FLOWER:
Summer/Fall
Yellow
Radially symmetrical
5-lobed calyx
5-lobed rotate corolla
5 stamens & 5 very short staminodia
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".