Yellow Yam
Dioscorea villosa
Found in moist forests and woodlands. Weakley, Flora of the Southeastern United States (2025), Northern Tier edition What its natural habitat tells you
Native to West Virginia. How scores work Is it native here?
Profile 76%
- 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 17 West Virginia counties.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

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 West Virginia. Shared habitat, not food. 52 animals.
- Wood ThrushHylocichla mustelina
- Yellow-bellied SapsuckerSphyrapicus varius
- Yellow-billed CuckooCoccyzus americanus
- Yellow-crowned Night-heronNyctanassa violacea
Widespread birds also seen here (35)
Found in many habitats here, so not listed above.
- Alder Flycatcher
- American Goldfinch
- American Redstart
- American Robin
- Belted Kingfisher
- Blue Grosbeak
- Blue Jay
- Blue-gray Gnatcatcher
- Cedar Waxwing
- Chimney Swift
- Common Nighthawk
- Common Raven
- Common Yellowthroat
- Cooper's Hawk
- Eastern Kingbird
- European Starling
- Gray Catbird
- Great Horned Owl
- Mourning Dove
- Northern Cardinal
- Northern Flicker
- Northern Mockingbird
- Orange-crowned Warbler
- Osprey
- Purple Finch
- Red-tailed Hawk
- Red-winged Blackbird
- Ruby-crowned Kinglet
- Sharp-shinned Hawk
- Spotted Sandpiper
- Tufted Titmouse
- Turkey Vulture
- White-throated Sparrow
- Yellow-breasted Chat
- Yellow-rumped Warbler
Who uses this plant?
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
| West Virginia rank | S5 |
|---|---|
| Global rank | G4G5 [G5] |
| WV 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
- NatureServe Explorer
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- Weakley, Flora of the Southeastern United States (2025)
- West Virginia 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





