Pacific Island Ecosystems at Risk (PIER)

  [   PIER species lists  ]   [   PIER home  ]

Ruellia prostrata
Poir., Acanthaceae
Click on an image for links to BIGGER PICTURES


Present on Pacific Islands?  yes

Primarily a threat at high elevations?  no

Other Latin names:  Dipteracanthus prostrata (Poir.) Nees

Common name(s): [more details]

English: bell weed, black weed

Maori (Cook Islands): mapua, tītā ‘aruru

Samoan: vao uli, vao uli

Habit:  herb

Description:  "Prostrate perennial herbs; stems often rooting at the nodes. Leaves green, lower surface conspicuously paler, ovate, 2-10 cm long, (0.9-) 1.5-4.5 cm wide, sparsely strigose, especially on upper surface, petioles 5-30 mm long. Flowers solitary in the leaf axils, each one subtended by oblanceolate to ovate bracts 15-23 mm long; calyx lobes 5, linear, 6-10 mm long; corolla violet blue to occasionally nearly white, 2.4-3.2 cm long, the lobes slightly spreading. Capsules clavate, 1.5-2 cm long, densely puberulent" (Wagner et al., 1999; p. 174).

Habitat/ecology:  A weed in disturbed areas. "Common to abundant in disturbed places, pastures, and under crops such as coconut and cacao" (Whistler, 1983; p. 18).

Propagation:  Seed and from rooting at nodes (Whistler, 1983; p. 18).

Native range:  Java.

Presence:

Pacific
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
American Samoa
Manu‘a Islands
Ofu Island introduced
Ragone, Diane/Lorence, David H. (2003) (p. 53)
American Samoa
Manu‘a Islands
Ofu Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2001) (voucher ID: PTBG 34852)
Taxon name on voucher: Ruellia prostrata Poir.
American Samoa
Manu‘a Islands
Olosega Island introduced
Ragone, Diane/Lorence, David H. (2003) (p. 53)
American Samoa
Manu‘a Islands
Olosega Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2001) (voucher ID: PTBG 37086)
Taxon name on voucher: Ruellia prostrata Poir.
American Samoa
Manu‘a Islands
Olosega Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2001) (voucher ID: PTBG 37100)
Taxon name on voucher: Ruellia prostrata Poir.
American Samoa
Manu‘a Islands
Ta‘u Island introduced
Ragone, Diane/Lorence, David H. (2003) (p. 53)
American Samoa
Manu‘a Islands
Ta‘u Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2001) (voucher ID: PTBG 34741)
Taxon name on voucher: Ruellia prostrata Poir.
American Samoa
Manu‘a Islands
Ta‘u Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (2002) (voucher ID: PTBG 40510)
Taxon name on voucher: Ruellia prostrata Poir.
American Samoa
Manu‘a Islands
Ta‘u Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1991) (voucher ID: PTBG 10522)
Taxon name on voucher: Ruellia prostrata
American Samoa
Tutuila Islands
Tutuila Island   National Tropical Botanical Garden (U.S.A. Hawaii. Kalaheo.) (1999) (voucher ID: PTBG 288)
Taxon name on voucher: Ruellia prostrata
Cook Islands
Southern Cook Islands
Aitutaki Atoll   McCormack, Gerald (2013)
Cook Islands
Southern Cook Islands
Aitutaki Atoll introduced
invasive
Space, James C./Flynn, Tim (2002) (p. 76)
Cook Islands
Southern Cook Islands
‘Atiu Island   McCormack, Gerald (2013)
Cook Islands
Southern Cook Islands
‘Atiu Island introduced
invasive
Space, James C./Flynn, Tim (2002) (p. 82)
Cook Islands
Southern Cook Islands
‘Atiu Island   Bishop Museum (Honolulu) (1991) (voucher ID: BISH 664873)
Taxon name on voucher: Ruellia prostrata Poir.
Cook Islands
Southern Cook Islands
Mangaia Island   McCormack, Gerald (2013)
Cook Islands
Southern Cook Islands
Mangaia Island introduced
invasive
Space, James C./Flynn, Tim (2002) (p. 88)
Cook Islands
Southern Cook Islands
Ma‘uke Island   McCormack, Gerald (2013)
Cook Islands
Southern Cook Islands
Ma‘uke Island introduced
invasive
Space, James C./Flynn, Tim (2002) (p. 94)
Cook Islands
Southern Cook Islands
Miti‘aro Island   McCormack, Gerald (2013)
Cook Islands
Southern Cook Islands
Miti‘aro Island introduced
invasive
Space, James C./Flynn, Tim (2002) (p. 99)
Cook Islands
Southern Cook Islands
Rarotonga Island   McCormack, Gerald (2013)
Federated States of Micronesia
Kosrae Island
Kosrae Island introduced
invasive
Josekutty, P. C./Wakuk, E. E./Joseph, M. J. (2002) (p. 63)
Federated States of Micronesia
Pohnpei Islands
Pohnpei Island   Wagner, W. L./ Herbst, D. R./Weitzman, A./Lorence, D.H. (2013)
State of Hawaii
Hawaiian Islands
Maui Island introduced
invasive
Oppenheimer, Hank L. (2003) (p. 4)
West Maui. Vouchers cited: Oppenheimer H50110 (BISH, PTBG), Oppenheimer H120107 (BISH, PTBG)
State of Hawaii
Hawaiian Islands
Moloka‘i Island introduced
invasive
Oppenheimer, Hank L. (2003) (p. 4)
Voucher cited: Oppenheimer H110137 (BISH, PTBG)
State of Hawaii
Hawaiian Islands
O‘ahu Island introduced
invasive
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 174)
Niue
Niue
Niue Island introduced
Whistler, W. A. (1988) (p. 5)
Voucher cited: Sykes 1384
Niue
Niue
Niue Island introduced
invasive
Whistler, W. A./Atherton, J. (1997) (p. 24)
Niue
Niue
Niue Island introduced
invasive
Space, James C./Waterhouse, Barbara M./Newfield, Melanie/Bull, Cate (2004) (p. 46)
Samoa
Western Samoa Islands
Savai‘i Island introduced
invasive
Space, James C./Flynn, Tim (2002) (p. 71)
Samoa
Western Samoa Islands
Upolu Island introduced
invasive
Space, James C./Flynn, Tim (2002) (p. 68)
Samoa
Western Samoa Islands
Upolu Island   Bishop Museum (Honolulu) (1975) (voucher ID: BISH 418003)
Taxon name on voucher: Ruellia prostrata Poir.
Vanuatu
New Hebrides Islands
Vanuatu (Republic of)   Swarbrick, John T. (1997) (p. 96)
Wallis and Futuna
Wallis and Futuna (Horne) Islands
Wallis (‘Uvea) Island introduced
invasive
Meyer, Jean-Yves (2007) (p. 29)
Wallis and Futuna
Wallis and Futuna (Horne) Islands
Wallis (‘Uvea) Island   Bishop Museum (Honolulu) (1968) (voucher ID: BISH 36632)
Taxon name on voucher: Ruellia prostrata Poir.
Wallis and Futuna
Wallis and Futuna (Horne) Islands
Wallis and Futuna Islands   Whistler, W. A. (1988) (p. 5)
Pacific Rim
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Indonesia
Indonesia
Indonesia (Republic of) native
Wagner, Warren L./Herbst, Derral R./Sohmer, S. H. (1999) (p. 174)
Indian Ocean
Country/Terr./St. &
Island group
Location Cited status &
Cited as invasive &
Cited as cultivated &
Cited as aboriginal introduction?
Reference &
Comments
Australia (Indian Ocean offshore islands)
Christmas Island Group
Christmas Island native
Orchard, Anthony E., ed. (1993) (p. 16)

Comments:  A common weed of roadsides and disturbed places in Samoa.


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

  [   PIER species lists  ]   [   PIER home  ]

This page was created on 1 JAN 1999 and was last updated on 31 MAY 2011.