Pacific Island Ecosystems at Risk (PIER)

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Senna multiglandulosa
(Jacq.) H. S. Irwin & Barneby, Fabaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Cassia tomentosa L. f.

Common name(s): [more details]

English: buttercup bush, downy senna

Habit:  shrub

Description:  "Shrub or small tree to 6 m high, not armed; twigs densely hairy, finely ribbed, rounded.  Leaves 1-paripinnate, densely hairy on rachis, petiolate; leaflets moderately hairy above, moderately or densely hairy below, oblong or elliptic, slightly asymmetric, subacute and shortly mucronate, entire, subsessile, (10)-15-40 mm long, usually in (4)-5-8 pairs; protruding glands mostly present between each pair of leaflets, often small or deciduous; stipules deciduous.  Inflorescence axillary, racemose, few-flowered, less than or more or less equal leaves; bracts and bracteoles narrow-ovate, deciduous, 3-6 mm long.  Calyx teeth unequal, acute or subacute.  Corolla deep golden yellow, ca 2 cm long; stamens 7; staminodes 3.  Pod indehiscent, hairy, more or less straight or slightly curved, terete or slightly flattened, many-seeded, 8-12 cm long; seeds smooth, brown, ca 5 mm long"  (Webb et al., 1988; p. 637).

Habitat/ecology:  In New Zealand, "established locally in waste places as a garden escape" (Webb et al., 1988; p. 637).

Propagation:  Seed

Native range:  Central and tropical South America (Webb et al., 1988; p. 637).

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
New Caledonia Islands introduced
Swarbrick, John T. (1997) (p. 89)
New Caledonia
New Caledonia Archipelago
Île Grande Terre introduced
invasive
Tassin, Jacques (2005)
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)
New South Wales introduced
invasive
Australian Biological Resources Study (2013)
Central America
Central America (Pacific rim)
Guatemala (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Mexico
Mexico
Mexico (United Mexican States) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
New Zealand
New Zealand
New Zealand (country) introduced
invasive
Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 637)
"Established locally in waste places as a garden escape".
South America (Pacific rim)
South America (Pacific rim)
Colombia (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
South America (Pacific rim)
South America (Pacific rim)
Perú (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (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 25 OCT 2006.