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Dioscorea quaternata J.F. Gmel.
fourleaf yam

General Information
Symbol: DIQU
Group: Monocot
Family: Dioscoreaceae
Duration: Perennial
Growth Habit: Forb/herb
Native Status: L48   N
Data Source and Documentation
Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   


click on a thumbnail to view an image, or see all the Dioscorea thumbnails at the Plants Gallery

Robert H. Mohlenbrock. USDA SCS. 1991. Southern wetland flora: Field office guide to plant species. South National Technical Center, Fort Worth. Provided by USDA NRCS Wetland Science Institute (WSI). Usage Requirements.

©Jim Stasz. United States, MD. Usage Requirements.

USDA NRCS. Wetland flora: Field office illustrated guide to plant species. USDA Natural Resources Conservation Service. Provided by NRCS National Wetland Team. Usage Requirements.



Symbol Scientific Name
DIGL3 Dioscorea glauca Muhl. ex Bartlett
DIQUG Dioscorea quaternata J.F. Gmel. var. glauca (Muhl. ex Bartlett) Fernald
DIVIG Dioscorea villosa L. var. glabrifolia (Bartlett) Fernald


Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Liliopsida – Monocotyledons
Subclass Liliidae
Order Liliales
Family Dioscoreaceae – Yam family
Genus Dioscorea L. – yam
Species Dioscorea quaternata J.F. Gmel. – fourleaf yam

Subordinate Taxa

This plant has no children

Legal Status



Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover