Pacific Island Ecosystems at Risk (PIER)

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Dipogon lignosus
(dummy value for TaxonCode Authority; this value should be replaced!!).......Fabaceae


Dolichos lignosus L.

English: Australian pea, dolichos pea, mile-a-minute, okie bean, purple dolichos

"Woody climber. Leaves stipulate; blades stipellate, pinnately 3-foliolate. Flowers in axillary racemes, bracts persistent, bracteoles more or less persistent; calyx campanulate; vexillary stamen free, remainder connate, anthers uniform; style cylindrical, dilated at base, strongly curved inwards at top and bottom, gently curved the opposite way in the middle, bearded on inside near top, stigma terminal. Pods cylindrical, attenuate at the ends; seeds estrophiolate but with a conspicuous white hilum."

Species: "Petioles up to ca 6 cm long; leaflet blades ovate-rhomboid, apex obtusely acuminate or acute, 3-10 cm x 1.5-4 cm (the largest leaflets occurring in cultivated specimens), more or less glabrous, paler on underside. Racemes up to ca 25 cm long, including peduncle, the flowers at the upper end; flowers pink-purple, 1-1.5 cm long; calyx 3-4 mm long, lobes shorter than tube, margin hairy; standard 1-1.5 cm long. Pods ca 4 cm long, glabrous" (Stanley & Ross, 1983; vol. 1, p. 69). "Grass- and heathland, forests, riparian habitats, coastal beaches.  A native of scrub and open forests that grows best in sunny locations, but seedlings can establish in shade.  The species is nitrogen-fixing and increases soil fertility levels.  The plant forms dense infestations that smother all other vegetation and prevent regeneration of native shrubs and trees"  (Weber, 2003; p. 140). Large amounts of bird-dispersed seed. The seeds can remain dormant for several years (Weber, 2003; p. 140). "Native to southern Africa, cultivated and naturalized Australia, occurring in south-eastern Queensland" (Stanley & Ross, 1983; vol. 1, p. 69).
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) introduced
Stanley, T. D./Ross, E. M. (1989) (p. 69)
Chile (continental)
Chile
Chile (Republic of) introduced
ILDIS Co-ordinating Centre (2013)
New Zealand
New Zealand
New Zealand (country) introduced
invasive
Owen, S. J. (1997)
New Zealand
New Zealand
New Zealand (country) introduced
invasive
Webb, C. J./Sykes, W. R./Garnock-Jones, P. J. (1988) (p. 646)
"A vigorous climber scrambling over scrub and waste land".
Indian Ocean
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Mauritius
Mautitius Islands (Mauritius and Rodrigues)
Mauritius Island introduced
ILDIS Co-ordinating Centre (2013)
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)
United States (other states)
United States (other states) introduced
ILDIS Co-ordinating Centre (2013)
Reported to be an invasive species in Australia and New Zealand per Owen, 1997.

Physical:  "Seedlings and small plants can be hand pulled or dug out, roots must be removed.  Larger vines can be cut and the roots dug out, or the cut stumps treated with herbicide.  Cutting before fruits develop prevents seed dispersal.  Follow-up treatments are necessary to control regrowth and seedlings". (Weber, 2003; p. 140).

Chemical:  "1. Cut down and paint stump (all year round): metsulferon-methyl 600g/kg (1g/L) or Tordon Brushkiller (100ml/L) or Banvine (200ml/L) or Woody Weedkiller (400ml/L) or Tordon Gold (200ml/L).
2. Dispose of all cut material at a refuse transfer station or burn.
3. Spray (spring-autumn): metsulferon-methyl 600g/kg (3g/10L + penetrant (knapsack) or 20g/100L + penetrant (spraygun)) or Banvine (120ml/10L) or Woody Weedkiller (240ml/10L)"  (Weedbusters New Zealand).


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