Pacific Island Ecosystems at Risk (PIER)

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Stylosanthes scabra
Vogel, Fabaceae
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Present on Pacific Islands?  no

Primarily a threat at high elevations?  no

Risk assessment results:  Low risk (based on second screen), score: 1 (Go to the risk assessment)

Common name(s): [more details]

English: seca, shrubby stylo

Habit:  shrub

Description:  "Low shrub with trifoliate leaves, small yellow pea flowers and stipules. Erect, woody annual or short-lived perennial, 1-2 m high, covered in soft, bristly and sticky hairs which give a rusty appearance to the plant.  Leaflets 9-17 mm long, 3.5-8 mm wide, patchy red-resinous below.  Pod hairy with small hook 1.5-2 mm long"  (Smith, 2002; pp. 65-66).

"A tall (up to 2 m), shrubby, perennial legume, erect to suberect, with strong, woody stems, usually densely hairy and viscid, making them sticky under hot, dry conditions. Stems vary in colour from pale green to dark blue-green, brown or reddish depending on the strain. Leaves trifoliate. Leaflets hairy on both surfaces, varying in shape from elliptic to oblong-lanceolate and in colour from pale green to dark green and dark blue-green. Stipules obovate, bristly hairy, 15 to 25 mm long including teeth. Inflorescence a broad, loosely formed and shortly elongate spike, occurring singly in the leaf axils. Fruit a biarticulating pod, the upper articulation carrying a short, slightly curved beak (residual stigma), and short viscid hairs. Seeds small (up to 2 mm long), pale to light brown, unsymmetrically reniform, the radical ends prominent" (Mohlenbrock, 1957, cited by FAO).

Habitat/ecology:  "Grow on a wide range of soils including lighter, poorer quality soils.  Suited to warm humid areas with high rainfall.  Establish on disturbed sites, along roadsides and around settlements." (Smith, 2002; pp. 65-66).

Propagation:  "Large amounts of seed produced and dispersed by stock and animal movement, as a contaminant of hay, and by vehicles and machinery, e.g. slashers and graders" (Smith, 2002; pp. 65-66).

Native range:  Caribbean and South America (GRIN).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
French Polynesia
Marquesas Islands
Nuku Hiva (Nukahiva) Island introduced
abo. intro.
Lorence, David H./Wagner, Warren L. (2013)
French Polynesia
Marquesas Islands
Nuku Hiva (Nukahiva) Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2004) (voucher ID: PTBG 42497)
Taxon name on voucher: Stylosanthes scabra
State of Hawaii
Hawaiian Islands
Hawai‘i (Big) Island introduced
invasive
Kennedy, Barbara H./James, Shelley A./Imada, Clyde T. (2010) (p. 21)
Voucher cited: L. Pratt 2824 (BISH)
State of Hawaii
Hawaiian Islands
Kaua‘i Island introduced
invasive
Frohlich, Danielle/Lau, Alex (2012) (p. 39)
Voucher cited: T. Flynn 7438 (BISH)
State of Hawaii
Hawaiian Islands
Lāna‘i Island introduced
invasive
Herbst, Derral R./Staples, George W./Imada, Clyde T. (2004) (p. 8)
Vouchers cited: K. Nagata 3475 (BISH), R. Hobdy 2879 (BISH)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Herbst, Derral R./Staples, George W./Imada, Clyde T. (2004) (p. 8)
Voucher cited. H. Oppenheimer & F. Duvall H50209 (BISH, PTBG)
State of Hawaii
Hawaiian Islands
Moloka‘i Island introduced
invasive
Herbst, Derral R./Staples, George W./Imada, Clyde T. (2004) (p. 8)
Vouchers cited: M.Evans M-113 (BISH), N. Pekelo Jr. 24 (BISH)
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
Herbst, Derral R./Staples, George W./Imada, Clyde T. (2004) (p. 8)
Voucher cited: W. Char & G. Buelow NARS 34 (BISH)
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 introduced
invasive
cultivated
Smith, Nicholas M. (2002) (pp. 65-66)
Australia
Australia (continental)
Queensland introduced
invasive
cultivated
Smith, Nicholas M. (2002) (pp. 65-66)
Colombia
Colombia
Colombia (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Colombia
Colombia
Colombia (Republic of) uncertain if native
ILDIS Co-ordinating Centre (2013)
Ecuador (Mainland)
Ecuador
Ecuador (Republic of) (continental) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Perú
Perú
Perú (Republic of) native
U.S. Dept. Agr., Agr. Res. Serv. (2013)
Perú
Perú
Perú (Republic of) uncertain if native
ILDIS Co-ordinating Centre (2013)


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This page was created on 3 APR 2005 and was last updated on 26 OCT 2006.