Pacific Island Ecosystems at Risk (PIER)

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Ruttya fruticosa
Lindau, Acanthaceae
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Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Risk assessment results:  Evaluate, score: 2 (Go to the risk assessment)

Habit:  shrub

Description:  "This evergreen shrub to 4 m tall has terminal inflorescences, with flowers in a short, cone-like spike, subtended by small linear bracts. The fiveparted, 6 mm long calyx has narrow lobes. The broadly tubular bright-yellow, orange-red or scarlet corolla to 7 cm long is two-lipped. The upper lip is reflexed and emarginate, consisting of two fused lobes, while the lower lip is tri-lobed with a distinctive irregular dark reddish to brown to black blotch at base of the middle lobe. The fruit is an ellipsoid capsule containing four seeds"  (Tri-Ology).

Habitat/ecology:  (no habitat/ecology info known by PIER)

Propagation:  Seed

Native range:  Tropical east Africa  (Tri-Ology).

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
State of Hawaii
Hawaiian Islands
O‘ahu Island   Bishop Museum (U.S.A. Hawaii. Honolulu.) (year unknown) (voucher ID: BISH 9990)
Taxon name on voucher: Ruttya fruticosa Lindau
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Singapore
Singapore
Singapore (Republic of) introduced
cultivated
Chong, Kwek Yan/Tan, Hugh T. W./Corlett, Richard T. (2009) (p. 76)
Cultivated only


Need more info? Have questions? Comments? Information to contribute? Contact PIER! (pier@hear.org)

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This page was created on 19 JUN 2009 and was last updated on 29 AUG 2009.