Canadian Clearweed
Pilea pumila
In the Carolinas and Georgia, found in swamp forests, bottomlands, freshwater marshes, tidal marshes, disturbed wet ground. Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition What its natural habitat tells you
Native to Louisiana. How scores work Is it native here?
Profile 82%
- Height
- 4–20 inches
- Light
- Dappled sunlight, Partial shade
- Soil moisture
- Usually moist
No photograph yet. Looking for an old drawing…
At a glance
- Life cycle
- Annual
- Fruiting season
- September to November
Not yet recorded · Spread · Leaves · Bloom
This plant is missing most of its facts, so Quercus is looking them up in old botany books.
Recorded in 41 Louisiana parishes.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.
Forested wetlands with standing water much of the year, such as cypress and gum swamps.
Floodplain and bottomland forests
Forests on low ground beside rivers and streams that flood from time to time.
Open, herb-covered wetlands with fresh, non-tidal water.
Coastal tidal marshes (salinity not stated)
Tidal marshes of the Atlantic and Gulf coasts where the source does not say whether the water is fresh, brackish or salt. A stated salinity files the marsh under freshwater tidal marshes or salt and brackish marshes instead.
Also found with this plant
Wildlife whose habitat models include habitats this plant grows in, in Louisiana. Shared habitat, not food. 150 animals.
- Great Horned OwlBubo virginianus
- Green HeronButorides virescens
- Hairy WoodpeckerPicoides villosus
- Hermit ThrushCatharus guttatus
- Kentucky WarblerOporornis formosus
- Lincoln's SparrowMelospiza lincolnii
- Louisiana WaterthrushSeiurus motacilla
- Magnificent FrigatebirdFregata magnificens
- Mourning DoveZenaida macroura
- Northern CardinalCardinalis cardinalis
- Northern FlickerColaptes auratus
- Northern MockingbirdMimus polyglottos
- OspreyPandion haliaetus
- Purple FinchCarpodacus purpureus
- Red-headed WoodpeckerMelanerpes erythrocephalus
- Red-tailed HawkButeo jamaicensis
- Red-winged BlackbirdAgelaius phoeniceus
- Ruby-crowned KingletRegulus calendula
- Sharp-shinned HawkAccipiter striatus
- Song SparrowMelospiza melodia
- Swainson's WarblerLimnothlypis swainsonii
- Swamp SparrowMelospiza georgiana
- Tufted TitmouseBaeolophus bicolor
- Turkey VultureCathartes aura
Who uses this plant?
4CaterpillarsGenus host records with ranges including LA
Genus host records with ranges including LA · Pilea
- Cosmopterix pulchrimellaBeautiful Cosmopterix Moth, Chamber's Cosmopterix
- Heterophleps refusariaThree-Patch Bigwing
- Spodoptera eridaniaSouthern Armyworm Moth
- Spodoptera ornithogalliYellow-Striped Armyworm Moth, Cotton Cutworm
No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects
Plant details
- Family
- Urticaceae
- Hardiness
- Zones 3a–10b
- Soil pH
- Acidic to alkaline
- Flower color
- Yellow, green or white
- Fruit begins
- September
- Fruit ends
- November
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Flower color · “Yellow, green or white” · NC Extension Plant Toolbox (ranked first; Lady Bird Johnson Wildflower Center differs)
- Fruit begins · “September” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Fruit ends · “November” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Hardiness · “Zones 3a–10b” · NC Extension Plant Toolbox
- Height · “4–20 inches” · Minnesota Wildflowers
- Life cycle · “Annual” · NC Extension Plant Toolbox
- Light · “Dappled sunlight (shade through upper canopy all day); Partial shade (direct sunlight only part of the day, 2-6 hours)” · NC Extension Plant Toolbox (ranked first; Lady Bird Johnson Wildflower Center differs)
- Soil · “Moist; Occasionally wet” · NC Extension Plant Toolbox (ranked first; Lady Bird Johnson Wildflower Center differs)
- Soil pH · “Acidic to alkaline” · NC Extension Plant Toolbox
Also known as
Clearweed
Conservation status
| Louisiana rank | SNR |
|---|---|
| Global rank | G5 |
| LA status | Not verified |
| Federal status | Not verified |
Will it fit your yard?
Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.
Sources
- Weakley, Flora of the Southeastern United States (2025), Florida edition
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- Louisiana occurrence source
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- 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
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications

























