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Southern Loosestrife

Lysimachia tonsa

Found in moist to dry upland forests, especially over calcareous or mafic rocks. Weakley, Flora of the Southeastern United States (2025), Northern Tier edition What its natural habitat tells you

55
Strong

Native to West Virginia. How scores work Is it native here?

Profile 88%

Height
Up to about 3 feet
Light
Partial shade, Full shade, Full sun
Soil moisture
Dry to moist
Will it fit your yard?

At a glance

Life cycle
Perennial
Bloom
May to July
Fruiting season
August to October

Not yet recorded · Spread · Leaves

Recorded in 1 West Virginia county.

Natural habitats

Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

Dry forests and woodlands

Forests and open woodlands on dry ridges and slopes, often oak or pine.

All habitats

Ecological relationships

Who uses this plant?

What these records mean

6CaterpillarsGenus host records with ranges including WV

Genus host records with ranges including WV · Lysimachia

  • Catocala consorsThe Consort
  • Herpetogramma pertextalisBold-Feathered Grass Moth
  • Melanchra adjunctaHitched Arches
  • Nola cilicoidesBlurry-Patched Nola
  • Papaipema lysimachiaeLoosestrife Borer
  • Papaipema nebrisStalk Borer
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
10BeesSoutheastern regional records

Southeastern regional records · Lysimachia

Individual names are not available yet.

Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
4Specialist beesPollen specialists

Pollen specialists · Lysimachia

  • Macropis ciliata
  • Macropis nuda
  • Macropis patellata
  • Macropis steironematis
Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
—BirdsRecorded genus food-resource interactions; not a state feeding claim

No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects

Growing and identification

Plant details

Family
Primulaceae
Flower color
Yellow
Fruit begins
August
Fruit ends
October

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope
Also known as

Appalachian Loosestrife; Lysimachia tonsa; Steironema tonsa; loosestrife

Conservation status

West Virginia rankSH
Global rankG4
WV statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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How to check your spot

Sources