Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Common name(s): [more details]

Chinese: xian ye zhu shi dou

English: narrow-leaved crotalaria

Habit:  herb

Description:  "Erect annual herb, 0.5-1 m high.  Stems little-branched, densely appressed tawny-pubescent; leaves simple, nearly sessile, the blade linear, 2-3.5 cm long, 3 mm wide, obtuse and shortly apiculate at apex, cuneate to obtuse at base, densely appressed-pubescent and paler beneath, less so above.  Inflorescence terminal or axillary racemes, elongate, laxly-flowered.  Flowers yellow, short-pedicelled, about 5 mm long; calyx densely appressed-pubescent, the lobes lanceolate, acute, not accrescent in fruit; corolla scarcely longer than the calyx, glabrous; ovary glabrous, sessile.  Pod ovoid, straight, equaling or slightly exceeding the calyx, black, glabrous"  (Walker, 1976; p. 555).

Description from Flora of China online.

Habitat/ecology:  "In grassy fields and roadsides" (Walker, 1976; p. 555).

Propagation:  Seed

Native range:  India to South China, Taiwan, the Philippines, Malaysia and Australia (Li et al., 1977; p. 233).

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Federated States of Micronesia Yap Islands	Yap (Waqab) Island	introduced	Fosberg, F. R./Sachet, Marie-Hélène/Oliver, Royce (1979) (p. 106)
New Caledonia New Caledonia	New Caledonia Islands		Swarbrick, John T. (1997) (p. 90)
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. 82) Vouchers cited: Schmid 30 (NOU), MacKee 28354, Toutain 3311 (NOU)
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		Merrill, Elmer D. (1923) (p. 272) In open grasslands at low and medium altitudes, in Benguet ascending to 1,400 m.

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)	Northern Territory	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
Australia Australia (continental)	Queensland	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) "Slopes, seashore sandy areas, along trails; 400-2500 m".
China China	Hong Kong	introduced cultivated	Wu, Te-lin (2001) (p. 141) Also var. stenophylla (Vogel) C. Y. Yang
Indonesia Indonesia	Indonesia (Republic of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
Japan Ryukyu Islands	Ryukyu Islands	native	ILDIS Co-ordinating Centre (2013)
Malaysia Malaysia	Malaysia (country of)	native	U.S. Dept. Agr., Agr. Res. Serv. (2013)
South America (Pacific rim) South America (Pacific rim)	Colombia		Holm, Leroy/Pancho, Juan V./Herberger, James P./Plucknett, Donald L. (1979) (p. 103)
Taiwan Taiwan Island	Taiwan Island	native	Zhengyi, Wu/Raven, Peter H./Deyuan, Hong (2013) "Slopes, seashore sandy areas, along trails; 400-2500 m".

Control:  If you know of control methods for Crotalaria linifolia, please let us know.