Pacific Island Ecosystems at Risk (PIER)

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Indigofera linifolia
(L. f.) Retz., Fabaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Common name(s): [more details]

Chinese: dan ye mu lan

Habit:  herb

Description:  "Shrublets or perennial herbs, prostrate or erect, many branched. Stems usually 4-angled, with appressed white medifixed symmetrically 2-branched trichomes. Stipules narrowly triangular, 2-3 x ca. 0.2 mm, partly adnate with petiole. Leaves simple or 1-foliolate; petiole 2.5-3 mm, with dense appressed medifixed trichomes; stipels linear, ca. 0.5 mm, glabrous; leaf or leaflet blade usually linear but sometimes elliptic to ovate-elliptic, 0.5-3 cm x 2-4 mm, both surfaces with appressed medifixed trichomes but abaxially more densely so, secondary veins not visible, base narrowly cuneate, apex acuminate and mucronate. Racemes 1-1.5 cm; peduncle ca. 0.5 mm; bracts ovate, ca. 1 x 1 mm, with dense appressed medifixed trichomes. Pedicel 0.5-1 mm. Calyx with dense appressed medifixed trichomes; tube ca. 0.5 mm; teeth narrowly triangular, ca. 2 mm. Corolla red; standard elliptic, 4-4.5 x 2-2.5 mm, outside hairy; wings 3.5-4 x ca. 1.5 mm, glabrous; keel 3.5-4.5 x 1-1.5 mm, glabrous. Stamens 3-4 mm; anthers glabrous. Ovary with minute appressed trichomes, with 1 ovule. Legume ovoid, ca. 2 x 2 mm, with dense appressed white medifixed 2-branched trichomes; endocarp not blotched. Seed 1 per legume, cubic, ca. 1 x 1 mm"  (Flora of China online).

Habitat/ecology:  In New Caledonia, "d'introduction probablement assez récente, cette plante est très commune au bord des routes le long de la côte Ouest" (MacKee, 1994; p. 85). In Queensland, Australia, "widespread, but not common, usually on sandy soils" (Stanley and Ross, 1981; vol. 1, p. 289).

Propagation:  Seed

Native range:  Northeast tropical Africa, temperate and tropical Asia, Malesia, Australia (GRIN).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
New Caledonia
New Caledonia Archipelago
Île Grande Terre introduced
invasive
Gargominy, Oliver/Bouchet, Philipe/Pascal, Michel/Jaffre, Tanguy/Tourneu, Jean-Christophe (1996) (p. 382)
Très commune au bord des routes le long de la côte Ouest.
New Caledonia
New Caledonia Archipelago
Île Grande Terre introduced
invasive
Tassin, Jacques (2005)
New Caledonia
New Caledonia Archipelago
Île Grande Terre introduced
invasive
MacKee, H. S. (1994) (p. 85)
Vouchers cited: MacKee 4640, MacKee 6510, MacKee 11841, MacKee 11878, MacKee 22103
Papua New Guinea
Papua New Guinea (eastern New Guinea Island)
Papua New Guinea (eastern New Guinea Island) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Philippines
Philippine Islands
Philippine Islands native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Philippines
Philippine Islands
Philippine Islands   Merrill, Elmer D. (1923) (p. 275)
On dry rocky and grassy banks and slopes at low and medium altitudes.
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, Western Australia
Australia
Australia (continental)
Northern Territory native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Australia
Australia (continental)
Queensland native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Cambodia
Cambodia
Cambodia (Kingdom of) 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)
"Grasslands on dry slopes, sunny riversides; below 1200 m".
Indonesia
Indonesia
Indonesia (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
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)
"Grasslands on dry slopes, sunny riversides; below 1200 m".
Thailand
Thailand
Thailand (Kingdom of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Vietnam
Vietnam
Vietnam (Socialist Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Indian Ocean
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
La Réunion (France)
La Réunion Island
La Réunion Island introduced
ILDIS Co-ordinating Centre (2013)


Need more info? Have questions? Comments? Information to contribute? Contact PIER! (pier@hear.org)

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This page was created on 1 JAN 1999 and was last updated on 14 DEC 2010.