Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Cassia hirsuta L.

Common name(s): [more details]

English: stinking cassia

Habit:  shrub

Description:  "A coarse herb becoming softly woody in age or a shrub 0.5-3 m high.  From other weedy sennas occurring in Fiji, Senna hirsuta is readily distinguished by its abundant, pale indument.  The leaves are usually 10-25 cm long, with (2-) 3-6 pairs of accrescent leaflets, the distal ones with ovate to elliptic, acuminate blades up to 10.5 x 4 cm.  The 2-8-flowerred racemes have pedicels 10-25 mm long at anthesis and yellow petals up to 8-15 mm long.  The pods are stiffly ascending or outwardly recurved, up to 18 cm long, and very slender" (Smith, 1985; p. 111-112).

Habitat/ecology:  In Fiji, "established as a weed in villages and plantations, along roadsides, and on rocky shores of rivers" (Smith, 1985; p. 111-112).

Propagation:  Seed

Native range:  South America, most likely Brazil (Smith, 1985; p. 111-112).

Presence:

Pacific
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Ecuador (Galápagos Islands) Floreana Group	Floreana Island	introduced invasive	Charles Darwin Foundation (2008)
Fiji Fiji Islands	Ovalau Island	introduced invasive	Smith, Albert C. (1985) (pp. 111-112) Voucher cited: Smith 7389
Fiji Fiji Islands	Taveuni Island	introduced invasive	Smith, Albert C. (1985) (pp. 111-112) Voucher cited: DA 11517
Fiji Fiji Islands	Viti Levu Island	introduced invasive	Smith, Albert C. (1985) (pp. 111-112) Vouchers cited: Greenwood 229, 787; DA 10892; DA 10890; DA 16659; Smith 4328; DA 5826; DA 11344; DA 11362; DA 2554; DA 11826; Meebold 16656
New Caledonia New Caledonia	New Caledonia Islands		Swarbrick, John T. (1997) (p. 89)
New Caledonia New Caledonia Archipelago	Île Grande Terre	introduced invasive	Tassin, Jacques (2005)
New Caledonia New Caledonia Archipelago	Île Grande Terre	introduced invasive cultivated	MacKee, H. S. (1994) (p. 73) Vouchers cited: Franc 2240, Déméné in MacKee 15035, MacKee 16069, MacKee 39109, Renevier in MacKee 44396 Spontané
Papua New Guinea Bismarck Archipelago	Bismarck Archipelago	introduced	ILDIS Co-ordinating Centre (2009)
Papua New Guinea Papua New Guinea (eastern New Guinea Island)	Papua New Guinea (eastern New Guinea Island)	introduced	ILDIS Co-ordinating Centre (2009)
Vanuatu New Hebrides Islands	Vanuatu (Republic of)		Swarbrick, John T. (1997) (p. 89)

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)	Queensland	introduced invasive	Australian Biological Resources Study (2008)
Colombia Colombia	Colombia (Republic of)	native	ILDIS Co-ordinating Centre (2009)
Costa Rica Costa Rica	Costa Rica (Republic of)	native	ILDIS Co-ordinating Centre (2009)
Ecuador (Mainland) Ecuador	Ecuador (Republic of) (continental)	native	ILDIS Co-ordinating Centre (2009)
El Salvador El Salvador	El Salvador (Republic of)	native	ILDIS Co-ordinating Centre (2009)
Guatemala Guatemala	Guatemala (Republic of)	native	ILDIS Co-ordinating Centre (2009)
Mexico Mexico	Mexico (United Mexican States)	native	ILDIS Co-ordinating Centre (2009)
Panama Panama	Panama (Republic of)	native	ILDIS Co-ordinating Centre (2009)
Perú Perú	Perú (Republic of)	native	ILDIS Co-ordinating Centre (2009)
Thailand Thailand	Thailand (Kingdom of)	introduced	ILDIS Co-ordinating Centre (2009)
Vietnam Vietnam	Vietnam (Socialist Republic of)	introduced	ILDIS Co-ordinating Centre (2009)

Indian Ocean
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
Seychelles Seychelles Islands	Seychelles Islands	introduced	ILDIS Co-ordinating Centre (2009)

Also reported from
Country/Terr./St. & Island group	Location	Cited status & Cited as invasive & Cited as cultivated & Cited as aboriginal introduction?	Reference & Comments
United States (continental except west coast and Florida) United States (other states)	United States (other states)	native	ILDIS Co-ordinating Centre (2009)

Additional information:
Information from the World Agroforestry Centre's AgroForestryTree Database.
Fact sheet from the Government of Queensland, Australia. (PDF format).

Additional online information about Senna hirsuta is available from the Hawaiian Ecosystems at Risk project (HEAR).

Information about Senna hirsuta as a weed (worldwide references) may be available from the Global Compendium of Weeds (GCW).

Taxonomic information about Senna hirsuta may be available from the Germplasm Resources Information Network (GRIN).

Other Latin names:  Cassia hirsuta L.

References:

Australian Biological Resources Study. 2008. Flora of Australia Online. Australian Biological Resources Study, Canberra.

Charles Darwin Foundation. 2008. Database inventory of introduced plant species in the rural and urban zones of Galapagos. Charles Darwin Foundation, Galapagos, Ecuador.

Charles Darwin Research Station. 2005. CDRS Herbarium records.

ILDIS Co-ordinating Centre. 2009. International Legume Database & Information Service. Online searchable database.

MacKee, H. S. 1994. Catalogue des plantes introduites et cultivées en Nouvelle-Calédonie. Muséum National d'Histoire Naturelle, Paris, 164 p.

Smith, Albert C. 1985. Flora Vitiensis nova: a new flora of Fiji. National Tropical Botanical Garden, Lawai, Kauai, Hawaii. Volume 3. 758 pp.

Swarbrick, John T. 1997. Weeds of the Pacific Islands. Technical paper no. 209. South Pacific Commission, Noumea, New Caledonia. 124 pp.

Tassin, Jacques. 2005. Jacques Tassin (IAC-CIRAD), personal communication.

Wiggins, I. L./Porter, D. M. 1971. Flora of the Galapágos Islands. Stanford University Press. 998 pp.