Pacific Island Ecosystems at Risk (PIER)

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Glycine tabacina
(Labill.) Benth., Fabaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Glycine koidzumii Ohwi

Common name(s): [more details]

Chinese: yan dou

English: glycine, glycine-pea, pea glycine, variable glycine, wild soybean

Tongan: kihikihi lanumata

Habit:  herb

Description: 

Genus: "Procumbent or twining perennial herbs (one species erect and annual), the stipules small, deciduous; leaves pinnately  (or in some species digitately) trifoliolate, stipellate, the leaflet blades entire; inflorescences axillary, racemose, rarely terminal and paniculate or fasciculate, the bracts small, the flowers small, solitary at inflorescence nodes, the pedicels short, with subpersistent apical bracteoles; calyx subbilabiate, 5-lobed, the 2 upper lobes partially connate; petals long-clawed, glabrous, the standard suborbicular or obovate to rhomboid, slightly auriculate at base, the wings narrow, somewhat adherent to keel, the keel petals much shorter than wings; stamens 10, monadelphous or the vexillary filament at length becoming free, the anthers uniform; ovary subsessile, the ovules few-several, the style short, slightly incurved, glabrous, the stigma small, terminal, capitate; fruits linear or oblong, subcylindric or compressed, straight or falcate, thinly septate between seeds, dehiscent, the seeds ovoid-oblong to subglobose, the hilum short, lateral" (Smith, 1985; p. 229).

Species:  "Herbs perennial. Stems slender, procumbent, usually curved, many branched at base, nodes obvious, sparsely pubescent. Leaves pinnately 3-foliolate; stipules lanceolate, ca. 2 mm, villous; petiole 2-3 cm, sparsely strigose; stipels linear, ca. 1 mm, hairy; leaflets at lower part of stem obovate or ovate to oblong, 0.7-1.2 x 0.4-0.8 cm, both surfaces adpressed white villous, denser abaxially, lateral veins 5-7 pairs, curved, reticulate veins visible, base rounded, apex obtusely rounded, truncate or slightly emarginate, mucronate; leaflets at upper part of stem ovate-lanceolate, narrowly elliptic-oblong, or linear, 1.2-3.2 cm x 5-8 mm. Raceme slender and spreading, 1-5.5 cm; peduncle 3-7.5 cm; bracts linear, villous; flowers sparse, usually 1 per bract or 2 or 3 clustered at lower part of rachis. Flowers 7-9 mm; pedicel ca. 2 mm; bracteoles slender. Calyx membranous, campanulate, densely strigose; lobes 5, triangular, longer than tube, upper 2 connate to middle. Corolla purple or light purple; standard orbicular, ca. 15 mm in diameter, with claw; wings and keels smaller, with auricles and claws. Ovary with short stipe, many ovuled. Legume oblong, straight, not constricted between seeds, 20-25 x ca. 2 mm, adpressed white villous, stipe short, apex with beak ca. 2 mm. Seeds 2-5, dark brown, cylindric, truncate at 2 ends, ca. 2.5 x 2 mm; testa not shiny, with granular small nodules"  (Flora of China online).

Habitat/ecology:  In Fiji, "infrequently occurring near sea level and presumably in more or less open and dry habitats" (Smith, 1985; p. 229).  In Tonga, "occasional in lawns and waste places" (Whistler, 1988; p. 24).

Propagation:  Seed

Native range:  "Australia (diploid); the tetraploid form has spread north to southern China, Taiwan, and the Ryukyu Islands and also eastward in the Pacific to Micronesia, New Caledonia, the New Hebrides, Fiji, and Tonga.  Hymowitz...suggests that its occurrence in Niue and Samoa (Sykes, 1970; p. 155) results from accidental introductions" (Smith, 1985; p. 229).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Commonwealth of the Northern Mariana Islands (US)
Northern Mariana Islands
Tinian Island   Wagner, W. L./ Herbst, D. R./Weitzman, A./Lorence, D.H. (2013)
Fiji
Fiji Islands
Vanua Levu Island native
Smith, Albert C. (1985) (p. 229)
Voucher cited: Seemann 123 (K)
Fiji
Fiji Islands
Viti Levu Island native
Smith, Albert C. (1985) (p. 229)
Voucher cited: Greenwood 769 (K)
New Caledonia
New Caledonia
New Caledonia Islands native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Niue
Niue
Niue Island introduced
Sykes, W. R. (1970) (p. 155)
Voucher cited: CHR 150554
Tonga
Tongatapu Group
‘Eua Island   Yuncker, T. G. (1959) (p. 147)
As Galactia tenuiflora but probably this species. Voucher cited: Yuncker 15621
Tonga
Tongatapu Group
Tongatapu Island   Whistler, W. A. (1992) (p. 30)
Vouchers cited: Soakai 32, Soakai 180, Soakai 686, Soakai 961
Tonga
Tongatapu Group
Tongatapu Island   Yuncker, T. G. (1959) (p. 147)
As Galactia tenuiflora but probably this species. Voucher cited: Yuncker 15061
Tonga
Vava‘u Group
Vava‘u Island   Whistler, W. A. (1992) (p. 30)
Voucher cited: Crosby 36
Tonga
Vava‘u Group
Vava‘u Island   Yuncker, T. G. (1959) (p. 145)
Cited: Crosby.
Tonga
Vava‘u Group
Vava‘u Island   Burkill, I. H. (1900) (p. 34)
Tonga
Vava‘u Group
Vava‘u Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1997) (voucher ID: PTBG 27003)
Taxon name on voucher: Glycine tabacina (Labill.) Benth. ex Seem.
Vanuatu
New Hebrides Islands
Vanuatu (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Australia
Australia (continental)
Australia (continental) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
South Australia, Victoria, Western Australia
Australia
Australia (continental)
New South Wales native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Australia
Australia (continental)
Queensland possibly native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
China
China
China (People's Republic of) native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)
Fujian, Guangdong
Japan
Ryukyu Islands
Ryukyu Islands native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Taiwan
Taiwan Island
Taiwan Island native
Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013)

Comments:  Indigenous all locations except perhaps Niue and Samoa (Smith, 1985, p. 229; Sykes, 1970, p. 155).


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This page was created on 1 JAN 1999 and was last updated on 15 DEC 2010.