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Yellow Yam

Dioscorea villosa

Found in moist forests and woodlands. Weakley, Flora of the Southeastern United States (2025), South Central edition What its natural habitat tells you

15
Modest

Native to Alabama. How scores work Is it native here?

Profile 94%

Height
6–15 feet
Light
Full sun, Partial shade
Soil moisture
Somewhat dry to moist
Will it fit your yard?

At a glance

Life cycle
Perennial
Bloom
April to June
Fruiting season
September to November

Not yet recorded · Spread · Leaves

Recorded in 59 Alabama counties.

Natural habitats

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

1 of 2

Forests and woodlands

Trail on Little Kennesaw Mountain.
Named place / source context. Shown: Kennesaw Mountain National Battlefield Park, Georgia, a neighboring state.Trail on Little Kennesaw Mountain., Unidentified in HFC record, undated. Public domain. Source record.

Moist forests

Forests on moist but not wet ground, such as rich slopes and ravines.

All habitats

Also found with this plant

Wildlife whose habitat models include habitats this plant grows in, in Alabama. Shared habitat, not food. 85 animals.

All wildlife of Alabama

Ecological relationships

Who uses this plant?

What these records mean

1CaterpillarsGenus host records with ranges including AL

Genus host records with ranges including AL · Dioscorea

  • Spodoptera eridaniaSouthern Armyworm Moth
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
0BeesSoutheastern regional records
0Specialist beesPollen specialists
—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
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
Also known as

Wild Yam

Conservation status

Alabama rankSNR
Global rankG4G5 [G5]
AL statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.

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How to check your spot

Sources