Common Threeseed Mercury
Acalypha rhomboidea
Found in woodlands, disturbed ground. FloraQuest, phone app (app page) What its natural habitat tells you
Native to Virginia. How scores work Is it native here?
Profile 94%
- Height
- 8–24 inches
- Light
- Full sun, Partial shade
- Soil moisture
- Somewhat dry to moist

At a glance
- Life cycle
- Annual
- Bloom
- June to November
Not yet recorded · Spread · Leaves
Recorded in 100 Virginia counties.
Habitats
Forests and woodlands; roadsides, fields and disturbed ground.
Each habitat page lists the plants and wildlife also found there. All habitats
Also found with this plant
Wildlife whose habitat models include habitats this plant grows in, in Virginia. Shared habitat, not food. 118 animals.
- Acadian FlycatcherEmpidonax virescens
- Alder FlycatcherEmpidonax alnorum
- American Black DuckAnas rubripes
- American CootFulica americana
- American CrowCorvus brachyrhynchos
- American GoldfinchCarduelis tristis
- American KestrelFalco sparverius
- American RedstartSetophaga ruticilla
- American RobinTurdus migratorius
- American WoodcockScolopax minor
- Baltimore OrioleIcterus galbula
- Bank SwallowRiparia riparia
- Barred OwlStrix varia
- Belted KingfisherMegaceryle alcyon
- Black VultureCoragyps atratus
- Black-and-White WarblerMniotilta varia
- Black-billed CuckooCoccyzus erythropthalmus
- Black-capped ChickadeePoecile atricapillus
- Black-crowned Night-heronNycticorax nycticorax
- Blue GrosbeakPasserina caerulea
- Blue JayCyanocitta cristata
- Blue-gray GnatcatcherPolioptila caerulea
- Blue-winged WarblerVermivora pinus
- Broad-winged HawkButeo platypterus
Who uses this plant?
5CaterpillarsGenus host records with ranges including VA
Genus host records with ranges including VA · Acalypha
- Acharia stimuleaSaddleback Caterpillar Moth
- Diaphania hyalinataMelonworm Moth
- Orthonama obstipataThe Gem
- Scopula limboundataLarge Lace-Border
- Spodoptera frugiperdaFall Armyworm Moth
10BirdsRecorded genus food-resource interactions; not a state feeding claim
Recorded genus food-resource interactions; not a state feeding claim · Acalypha
- Agelaius phoeniceusRed-winged Blackbird
- Ammospiza leconteiiLeConte's Sparrow
- Anthus rubescensAmerican Pipit
- Catharus guttatusHermit Thrush
- Columbina passerinaCommon Ground Dove
- Molothrus aterBrown-headed Cowbird
- Peucaea aestivalisBachman's Sparrow
- Spizella passerinaChipping Sparrow
- Spizella pusillaField Sparrow
- Zenaida macrouraMourning Dove
Direct food only: birds recorded eating this genus across North America. Caterpillars on host plants also feed nesting birds. NC Native Plant Society: butterfly gardening
No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects
Plant details
- Family
- Euphorbiaceae
- Flower color
- Green
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Bloom · “Late June to November” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) · Carolinas and Georgia
- Flower color · “Green” · Lady Bird Johnson Wildflower Center
- Height · “8–24 inches” · Minnesota Wildflowers
- Life cycle · “Annual” · NC Extension Plant Toolbox
- Light · “Full sun (6 or more hours of direct sunlight a 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)
- primary_flower_color · “green” · Lady Bird Johnson Wildflower Center
- Soil · “Moist; Occasionally dry” · NC Extension Plant Toolbox (ranked first; Lady Bird Johnson Wildflower Center differs)
Also known as
Common Three Seeded Mercury
Conservation status
| Virginia rank | S5 |
|---|---|
| Global rank | G5 |
| VA 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
- Digital Atlas of the Virginia Flora
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- NatureServe Explorer
- 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

























