Index / Search / Dioscorea oppositifolia
§1 Plant
Dioscorea oppositifolia L.
vernacular Chinese yam — species · Dioscoreaceae
§2Habit & range
Habit and range
- Growth habit
- Forb/herb, Vine
- Duration
- Perennial
- Group
- Monocot
- Family
- Dioscoreaceae R. Br.
- Genus
- Dioscorea
Native status, by region
- L48 Lower 48 States Introduced
County-level range
· 228 counties across 19 states/territories§3Cultivation
No cultivation specs.
USDA has not characterised this taxon. Roughly four out of five plants in the database lack the detailed cultivation record present here — typically because they have not been the focus of NRCS Plant Materials work. Range and distribution data are unaffected.
§4Counties, by state
Recorded in 228 counties across 19 states/territories.
Alabama view state ↗ 5 I ▾
Arkansas view state ↗ 19 I ▾
District of Columbia view state ↗ 1 I ▾
Florida view state ↗ 1 I ▾
Georgia view state ↗ 13 I ▾
Illinois view state ↗ 2 I ▾
Indiana view state ↗ 1 I ▾
Kentucky view state ↗ 38 I ▾
- Adair 21001
- Bell 21013
- Bourbon 21017
- Bullitt 21029
- Carlisle 21039
- Carter 21043
- Clark 21049
- Clay 21051
- Clinton 21053
- Estill 21065
- Fayette 21067
- Floyd 21071
- Franklin 21073
- Hardin 21093
- Harlan 21095
- Henry 21103
- Jackson 21109
- Jefferson 21111
- Jessamine 21113
- Laurel 21125
- Lee 21129
- Lewis 21135
- Lyon 21143
- Madison 21151
- Marion 21155
- Martin 21159
- McCreary 21147
- McLean 21149
- Menifee 21165
- Montgomery 21173
- Nelson 21179
- Oldham 21185
- Pendleton 21191
- Pike 21195
- Robertson 21201
- Rowan 21205
- Trigg 21221
- Washington 21229
Louisiana view state ↗ 2 I ▾
Maryland view state ↗ 1 I ▾
New Jersey view state ↗ 1 I ▾
New York view state ↗ 7 I ▾
North Carolina view state ↗ 17 I ▾
Pennsylvania view state ↗ 9 I ▾
South Carolina view state ↗ 9 I ▾
Tennessee view state ↗ 31 I ▾
- Anderson 47001
- Bedford 47003
- Blount 47009
- Cannon 47015
- Carter 47019
- Cheatham 47021
- Chester 47023
- Claiborne 47025
- Cumberland 47035
- Davidson 47037
- Dickson 47043
- Franklin 47051
- Grainger 47057
- Grundy 47061
- Hardin 47071
- Hawkins 47073
- Henry 47079
- Humphreys 47085
- Knox 47093
- Madison 47113
- Monroe 47123
- Montgomery 47125
- Rutherford 47149
- Sevier 47155
- Shelby 47157
- Stewart 47161
- Sullivan 47163
- Sumner 47165
- Union 47173
- Washington 47179
- Williamson 47187
Vermont view state ↗ 1 I ▾
Virginia view state ↗ 56 I ▾
- Accomack 51001
- Albemarle 51003
- Amelia 51007
- Amherst 51009
- Arlington 51013
- Bedford 51019
- Brunswick 51025
- Buckingham 51029
- Caroline 51033
- Charlotte 51037
- Culpeper 51047
- Cumberland 51049
- Dickenson 51051
- Essex 51057
- Fairfax 51059
- Fauquier 51061
- Franklin 51067
- Frederick 51069
- Gloucester 51073
- Greene 51079
- Henrico 51087
- Henry 51089
- Isle of Wight 51093
- James City 51095
- King George 51099
- Lee 51105
- Lunenburg 51111
- Madison 51113
- Mathews 51115
- Mecklenburg 51117
- Middlesex 51119
- Montgomery 51121
- Nelson 51125
- Newport News (city) 51700
- Northumberland 51133
- Orange 51137
- Page 51139
- Patrick 51141
- Pittsylvania 51143
- Prince Edward 51147
- Prince George 51149
- Prince William 51153
- Rappahannock 51157
- Rockbridge 51163
- Rockingham 51165
- Russell 51167
- Scott 51169
- Shenandoah 51171
- Spotsylvania 51177
- Stafford 51179
- Surry 51181
- Warren 51187
- Washington 51191
- Wise 51195
- Wythe 51197
- York 51199
§5Sources & provenance
USDA PLANTS
Symbol, taxonomy, distribution, cultivation specs, native status. Public domain.
plants.usda.gov/DIOP ↗GBIF Backbone
Canonical taxonomic identity, synonym resolution, cross-refs. CC0.
gbif.org/species/2754965 ↗Record version
Cached and built locally. Source version on this record:
usda-plants-mt-2026-05-26
fetched 2026-05-26T07:25:30Z