Yellow Yam
Dioscorea villosa
In the Carolinas and Georgia, found in moist forests and woodlands. Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition What its natural habitat tells you
Native to Arkansas. How scores work Is it native here?
Profile 94%
- Height
- 6–15 feet
- Light
- Full sun, Partial shade
- Soil moisture
- Somewhat dry to moist
No photograph yet. Looking for an old drawing…
At a glance
- Life cycle
- Perennial
- Bloom
- April to June
- Fruiting season
- September to November
Not yet recorded · Spread · Leaves
Recorded in 57 Arkansas counties.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.
Forests on moist but not wet ground, such as rich slopes and ravines.
Forest or woodland where the source does not say how moist or dry.
Also found with this plant
Wildlife whose habitat models include habitats this plant grows in, in Arkansas. Shared habitat, not food. 112 animals.
- American Black DuckAnas rubripes
- American GoldfinchCarduelis tristis
- American RedstartSetophaga ruticilla
- American RobinTurdus migratorius
- Bald EagleHaliaeetus leucocephalus
- Belted KingfisherMegaceryle alcyon
- Black-and-White WarblerMniotilta varia
- Black-crowned Night-heronNycticorax nycticorax
- Blue GrosbeakPasserina caerulea
- Blue JayCyanocitta cristata
- Blue-gray GnatcatcherPolioptila caerulea
- Brown CreeperCerthia americana
- Canada GooseBranta canadensis
- Cedar WaxwingBombycilla cedrorum
- Chimney SwiftChaetura pelagica
- Common NighthawkChordeiles minor
- Common YellowthroatGeothlypis trichas
- Cooper's HawkAccipiter cooperii
- Double-crested CormorantPhalacrocorax auritus
- Downy WoodpeckerPicoides pubescens
- Eastern KingbirdTyrannus tyrannus
- Eastern Screech-owlMegascops asio
- Eurasian Collared-doveStreptopelia decaocto
- European StarlingSturnus vulgaris
Who uses this plant?
1CaterpillarsGenus host records with ranges including AR
Genus host records with ranges including AR · Dioscorea
- Spodoptera eridaniaSouthern Armyworm Moth
No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects
Plant details
- Family
- Dioscoreaceae
- Hardiness
- Zones 6a–9b
- Soil pH
- Neutral 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
- Bloom · “April to June” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition (ranked first; Prairie Moon 2026 Cultural Guide differs) · Carolinas and Georgia
- Flower color · “Yellow, green or white” · NC Extension Plant Toolbox (ranked first; Prairie Moon 2026 Cultural Guide 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 6a–9b” · NC Extension Plant Toolbox
- Height · “6–15 feet” · Minnesota Wildflowers (ranked first; Prairie Moon 2026 Cultural Guide differs)
- Life cycle · “Perennial” · 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; Tennessee Smart Yards, Prairie Moon 2026 Cultural Guide differ)
- Soil · “Moist; Occasionally dry” · NC Extension Plant Toolbox (ranked first; Tennessee Smart Yards, Prairie Moon 2026 Cultural Guide differ)
- Soil pH · “Neutral to alkaline” · NC Extension Plant Toolbox
Also known as
Wild Yam
Conservation status
| Arkansas rank | SNR |
|---|---|
| Global rank | G4G5 [G5] |
| AR 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
- Atlas of the Vascular Plants of Arkansas (2013)
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- Weakley, Flora of the Southeastern United States (2025)
- Arkansas 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

























