This species is said to be poisonous.
Click on the language to view common names.
Common Names in Bengali:
Ban Alu, Rat Alu, Roth Alu
Common Names in Burmese:
Ah Lu Thi, Hpwut Sa Uu (Putsa U), Pat Sa Uu (Putsa U)
Common Names in Chinese:
Huang Du, Huang Yao
Common Names in English:
Aerial Yam, Air Potato, Air Yam, Air-Potato, Bitter Yam, Bulbil-Bearing Yam, Cheeky Yam, Hoi (Hawaii), Malacca Yam, Potato Yam
Common Names in French:
Igname Bulbifère, Igname Pousse En L´air, Masako, Pomme En L´air, Pousse En L´air
Common Names in German:
Brotwurzel, Kartoffel-Yam, Kartoffelyam, Knollen-Yam, Luft-Kartoffel, Luft-Yams, Yamswurzel
Common Names in Hawaiian:
Common Names in Hindi:
Gaithi, Hoei Oepas, Karu Kunda, Karukanda, Kodikilangu, Ratalu, Ratula, कोिडिकलांनगु, रतालू, रातुला
Common Names in India:
Common Names in Japanese:
Kashuu Imo, Niga Kashuu
Common Names in Laotian:
Houo I Mou, Man Pau
Common Names in Marathi:
Kadu Kand, Mataru
Common Names in Nepalese:
Giitthaa (Gittha), Giitthe Tarul (Gitthe Tarul), Jada Bis, Van Tarul
Common Names in Oriya:
Common Names in Portuguese:
Common Names in Russian:
Common Names in Spanish:
ñame Criollo (Venezuela), ñame De Aire (Colombia), ñame De Gunda, ñame Volador (Cuba), Papa Cimarrona (Mexico), Papa De Aire, Papa Voladora
Common Names in Tagalog:
Bayag Kabayo, Ubi Ubihan, Utong Utongan
Common Names in Tamil:
Kaattukkaayvalli, Kaayvalli, Pannu Kilangu
Common Names in Telugu:
Adavi Dumpa, Chedupaddudampa, Karu Kanda, Malaka Kayependalamu
Common Names in Thai:
De Khwa (Karen - Chiang Mai), Ham Pao (Northern Thailand), La Sa Mi, Lo Chae Mue (Karen), Man I Mo, Man Khamin, Wan Phra Chim, Wan Sam Phan Dtang, Wan Sam Phan Thueng
Common Names in Vietnamese:
C Di, Khoai Dái, Khoai Tri
or woody vines
, rarely erect
, small herbs. Rootstock
. Stem twining to left or right
, sometimes prickly. Leaves alternate or opposite, petiolate
or palmately compound
, basal veins 3--13, interstitial
veins reticulate; leaflets
of palmately compound leaves often ovate
or lanceolate. Flowers usually unisexual
dioecious, rarely monoecious), sometimes bisexual
, solitary, clustered, or in cymules
, these in a spike, raceme
, or thyrse
, these sometimes grouped into panicles. Male flowers: perianth lobes
6, in 2 whorls, basally connate
; stamens 6, sometimes 3 reduced to staminodes or absent, inserted
on perianth or receptacle; ovary rudimentary
or absent. Female flowers: similar to male ones; staminodes 3, 6, or absent; ovary inferior, 3-loculed, ovules usually 2 per locule (more than 2 in a few small genera), placentation axile
; styles 3, free. Fruit a capsule, berry, or samara. Seeds with a membranous wing
or not; endosperm present; embryo small.
About nine genera and 650 species: widely distributed in tropical and temperate regions , especially in tropical America; one genus and 52 species (21 endemic, two introduced ) in China.
, variable in color, shape
, chemical constituents, and depth in ground
. Bulblets axillary
or absent. Leaves alternate or opposite, petiolate
or palmately compound
, basal veins 3--9. Flowers unisexual
dioecious, rarely monoecious), arranged spirally in axillary, usually elongate
spikes or racemes
, or in small cymules
in ± spikelike thyrses
, these often several together, sometimes gathered into a terminal
or axillary panicle by reduction of subtending
leaves. Male flowers: stamens 6, 3 sometimes reduced to staminodes or absent. Female spikes 3.5--10 cm, few flowered. Female flowers: staminodes 3, 6, or absent. Capsule 3-winged, dehiscent
apically at maturity. Seeds with a membranous wing
More than 600 species: widely distributed in tropical and temperate regions ; 52 species (21 endemic, two introduced ) in China.
Dioscorea is a genus of great economic value, including important food plants. Several species are widely cultivated in many cultivars (including Dioscorea alata D. esculenta D. japonica and D. polystachya), while other, wild species are valuable famine foods. Other species are sources of drugs both in traditional Chinese and Western medicine (notably D. nipponica and D. zingiberensis which are major sources of steroid precursors) .
Species Dioscorea bulbifera
or not; tubers, when present, buried just below ground
surface, not stalked
, weighing less than 1 kg
. Stems twining
to more than 20 m
, often flecked with
purple, unwinged or rarely narrowly winged
, producing axillary
bulbils frequently greater than 5 cm in diam. in leaf axils
alternate throughout, 5-25 × 5-26 cm; petiole
shorter than blade
, basal lobes
stipulelike, 1-4 mm
wide; blade 5-11-veined, broadly ovate-cordate, glabrous
, base orbicular,
entire, apex long-acuminate. Staminate
borne singly, spicate
, to 70 cm; cymes reduced
to 1 sessile bracteolate
flower, internodes ca.
2 mm; secondary axes
to 6 per node, fasciculate, subtended by deltate bracteoles or sometimes
leafy bracts, 3-20 cm. Pistillate
inflorescences borne singly or
fasciculate, to 6 per axil, spicate; spikes bearing to 50 flowers,
6-40 cm, subopposite to 8 mm apart. Staminate flowers
white, becoming purple; tepals in 2 similar whorls, spreading
, lanceolate, (1-) 2-5 mm; fertile
stamens 6 in 2 equal whorls;
as long as or longer
; thecae distinct
spreading. Pistillate flowers: perianth greenish white, not changing
color; tepals as in staminate flowers; staminodes 6, smaller than
fertile stamens. Capsules not reflexed
at maturity, longer than wide,
1.8-2.8 × 1-1.5 cm. Seeds unilaterally winged, 12-20 mm.
= 80, 100. Flowering late summer--early fall
Dioscorea bulbifera is the most widely distributed of all Dioscorea species. It is found throughout the tropics and is thought to be native to both Africa and Asia. The tubers are either small and bitter or do not form at all. The bulbils are eaten, although this species is not widely consumed outside of Oceania. It is weedy in Florida and probably elsewhere in the Gulf States, but I have not seen any specimens to document its range outside Florida. Plants in the flora area rarely flower, and those that do are usually pistillate; I observed no staminate flowers. [source]
Habit: Vine , Forb/herb
Flowers: Bloom Period: October, November. • Flower Color: green, pale green
Size: over 40' tall.
Culture: Space 3-6" apart.
Soil: Minimum pH: 5.6 • Maximum pH: 7.5
Sunlight: Sun Exposure: Full Sun .
Moisture: Drought Tolerance: High
Temperature: Cold Hardiness: 9a, 9b, 10a, 10b, 11. (map)
- Whittaker & Margulis,1978
- Haeckel, 1866
- Cavalier-Smith, 1981
- Sinnott, 1935 ex Cavalier-Smith, 1998
- Vascular Plants
- Kenrick & Crane, 1997
- Brongniart, 1843
- Takhtajan, 1967
- Superorder: Dioscoreanae () - (J.d. Hooker, in Le Maout & Decaisne, 1873) Takhtajan, 1997 Ex Reveal & Doweld, 1999
- Subclass: Liliidae () - Takhtajan, 1967
- Class: Spermatopsida () - Brongniart, 1843
- Infraphylum: Radiatopses () - Kenrick & Crane, 1997
- Subphylum: Euphyllophytina ()
- Phylum: Tracheophyta () - Sinnott, 1935 ex Cavalier-Smith, 1998 - Vascular Plants
- Subkingdom: Viridaeplantae () - Cavalier-Smith, 1981
- Kingdom: Plantae () - Haeckel, 1866 - Plants
Publishing author : L. Publication : Species Plantarum 1753 (1 May 1753)
Members of the genus Dioscorea
ZipcodeZoo has pages for 47 species, subspecies, varieties, forms, and cultivars in this genus:
D. alata (Purple Yam) · D. altissima (Dunguey) · D. bulbifera (Aerial Yam) · D. bulbifera var. bulbifera (Air Potato) · D. cayenensis (Yellow Guinea Yam) · D. cayennensis (Yellow Guinea Yam) · D. cirrhosa (Dyeing Yam (Philippines)) · D. communis (Lady´s-Seal) · D. composita (Yam) · D. convolvulacea (Yam) · D. cylindrica (Wild Yam) · D. deltoidea (Wild Yam) · D. discolor (Ornamental Yam) · D. dumetorum (Bitter Yam) · D. elephantipes (Elephants Foot) · D. esculenta (Chinese Yam) · D. floribunda (Yam) · D. floridana (Florida Yam) · D. glabra (Chinese Yam) · D. hemicrypta (Dioscorea) · D. hispida (Intoxicating Yam) · D. japonica (Glutinous Yam) · D. kamoonensis (Kamoon Yam) · D. macrostachya (Yam) · D. macrostachys (Elephants Foot) · D. mexicana (Barbasco) · D. nummularia (Yam) · D. oppositifolia (Chinese Wild Yam) · D. pentaphylla (Five-Leaf Yam) · D. pilosiuscula (Bulbous Yam) · D. polygonoides (Mata Gallina) · D. praehensilis (Bush Yam) · D. prazeri (Wild Yam) · D. preussii (Preuss' Dioscorea) · D. purpurea (Podicherry Sweet Potato) · D. quaternata (Fourleaf Wild-Yam) · D. rotundata (Guinea Yam) · D. sagittata (Five-Leaved Yam) · D. sagittifolia (Wild Congo Yam) · D. sansibarensis (Zanzibar Yam) · D. septemloba (Seven-Lobed Yam) · D. spiculiflora (Yam) · D. sylvatica (Wild Yam) · D. tokoro (Mountain Yam) · D. tomentosa (Thorny Yam) · D. trifida (Indian Yam) · D. villosa (Colic Root)
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- National Science Museum of Korea, National Science Museum of Korea Plant
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- Biodiversity Heritage Library NamebankID: 2662903
- Catalogue of Life Accepted Name Code: Kew-239891
- Global Biodiversity Information Facility Taxonkey: 13755000
- Globally Unique Identifier: urn:lsid:ipni.org:names:70869-3
- GRIN Nomen Number: 14186
- Integrated Taxonomic Information System (ITIS) Taxonomic Serial Number (TSN): 43369
- International Plant Names Index (IPNI) ID: 317753-1
- MoBot NameID: 11000268
- Natural Heritage Network Species Identifier: PMDIO01040
- U.S.D.A. Plant Symbol: DIBU
- Zipcode Zoo Species Identifier: 8785
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