risk assessments

Pacific Island Ecosystems at Risk (PIER)

Risk Assessments
Risk assessments for species beginning with the letter "R":

Information on Risk Assessments

Scientific Name Family Common name Risk assessment Country or Area Score Recommendation

Ranunculus muricatus Ranunculaceae spinyfruit buttercup Assessment U.S. (Florida) 7 reject

Ranunculus parviflorus Ranunculaceae smallflower buttercup Assessment U.S. (Florida) 4 accept*

Rapistrum rugosum Brassicaceae bastard cabbage Assessment Pacific 5 evaluate

Rauvolfia vomitoria Apocynaceae poison devil's pepper Assessment Pacific 21 high risk

Ravenala madagascariensis Strelitziaceae traveler's palm Assessment Pacific 5 evaluate

Ravenea rivularis Arecaceae majesty palm Assessment Pacific -3 low risk

Remusatia pumila Araceae Assessment U.S. (Florida) 4 accept*

Rhaphiolepis indica Rosaceae Indian hawthorn Assessment Pacific 3 low risk*

Rhaphiolepis umbellata Rosaceae Japanese hawthorn Assessment Pacific 0 evaluate*

Rhapis excelsa

Arecaceae

lady palm

Assessment

Pacific

0

low risk

Rhipsalis baccifera Cactaceae mistletoe cactus Assessment Pacific 0 low risk

Rhizophora mangle Rhizophoraceae red mangrove Assessment Pacific 13 high risk

Rhododendron indicum

Ericaceae

evergreen azalea

Assessment

Pacific

4

evaluate

Rhododendron simsii Ericaceae Formosa azalea Assessment U.S. (Florida) 0 accept

Rhodomyrtus tomentosa Myrtaceae rose myrtle Assessment Pacific 8 high risk

Rhus taitensis Anacardiaceae sumac Assessment Pacific 7 high risk**

Richardia brasiliensis Rubiaceae Brazilian pusley Assessment U.S. (Florida) 7 reject

Richardia scabra Rubiaceae Florida pusley Assessment U.S. (Florida) 8 reject

Ricinus communis Euphorbiaceae castor bean Assessment Australia 8 reject

Ricinus communis Euphorbiaceae castor bean Assessment Pacific 21 high risk

Ricinus communis Euphorbiaceae castor bean Assessment U.S. 24 reject

Ricinus communis Euphorbiaceae castor bean Assessment U.S. (Florida) 24 reject

Rivina humilis Phytolaccaceae pigeonberry Assessment Pacific 11 high risk

Rohdea watanabei Liliaceae Assessment U.S. (Florida) 0 accept

Roldana petasitis Asteraceae velvet groundsel Assessment Pacific 12 high risk

Rondeletia amoena Rubiaceae rondeletia Assessment Pacific -2 low risk

Rondeletia leucophylla Rubiaceae Panama rose Assessment U.S. (Florida) -1 accept

Rondeletia odorata

Rubiaceae

rondeletia

Assessment

Pacific

-4

low risk

Rosa laevigata Rosaceae Cherokee rose Assessment Pacific 16 high risk

Rosa multiflora Rosaceae multiflora rose Assessment Pacific 12 high risk

Rottboellia cochinchinensis Poaceae itchgrass Assessment U.S. (Florida) 22 reject

Rottboellia cochinchinensis Poaceae itchgrass Assessment United States high risk

Roystonia oleracea Arecaceae cabbage palm Assessment Pacific -3 low risk

Roystonea regia

Arecaceae

Florida royal palm

Assessment

Pacific

0

low risk

Rubus alceifolius Rosaceae giant bramble Assessment Australia 11 reject

Rubus argutus

Rosaceae

prickly Florida blackberry

Assessment

Pacific

21.5

high risk

Rubus discolor Rosaceae Himalayan blackberry Assessment Pacific 24 high risk

Rubus ellipticus Rosaceae yellow Himalayan blackberry Assessment Pacific 18 high risk

Rubus loganobaccus Rosaceae boysenberry Assessment Pacific 11 high risk

Rubus 'Marion' Rosaceae Marionberry Assessment Pacific 4 evaluate

Rubus 'Natchez' Rosaceae Rubus 'Natchez' Assessment Pacific 7 high risk

Rubus niveus Rosaceae Ceylon raspberry Assessment Pacific 19 high risk

Rubus rosifolius Rosaceae thimbleberry Assessment Pacific 10 high risk

Rubus sieboldii Rosaceae Molucca raspberry Assessment Pacific 10 high risk

Rubus 'Triple Crown' Rosaceae Triple Crown Assessment Pacific 3 evaluate

Ruellia caroliniensis

Acanthaceae

Carolina wild petunia

Assessment

Pacific

1

low risk*

Ruellia makoyana Acanthaceae monkey plant Assessment U.S. (Florida) -1 accept

Ruellia squarrosa Acanthaceae water bluebell Assessment Pacific 7 high risk

Ruellia tuberosa Acanthaceae minnieroot Assessment Pacific 8 high risk

Rumex brownii Polygonaceae brown dock Assessment Australia 16 reject

Rumex crispus Polygonaceae curly dock Assessment Australia 16 reject

Rumex crispus Polygonaceae curly dock Assessment U.S. (Florida) 26 reject

Rumex pulcher Polygonaceae fiddle dock Assessment Australia 16 reject

Rumex pulcher Polygonaceae fiddle dock Assessment U.S. (Florida) 11 reject

Rumohra adiantiformis Polypodiaceae leatherleaf fern Assessment U.S. (Florida) 3 accept*

Russelia equisetiformis Scrophulariaceae coralplant Assessment Pacific -2 low risk

Ruttya fruticosa Acanthaceae rabbit ears Assessment Pacific 1 evaluate

*Accepted or rejected based on second screen.
**Native or early introduction in the Pacific region (excluding Hawai‘i).

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This page updated 2 March 2012

Scientific Name	Family	Common name	Risk assessment	Country or Area	Score	Recommendation
Ranunculus muricatus	Ranunculaceae	spinyfruit buttercup	Assessment	U.S. (Florida)	7	reject
Ranunculus parviflorus	Ranunculaceae	smallflower buttercup	Assessment	U.S. (Florida)	4	accept*
Rapistrum rugosum	Brassicaceae	bastard cabbage	Assessment	Pacific	5	evaluate
Rauvolfia vomitoria	Apocynaceae	poison devil's pepper	Assessment	Pacific	21	high risk
Ravenala madagascariensis	Strelitziaceae	traveler's palm	Assessment	Pacific	5	evaluate
*Ravenea rivularis*	Arecaceae	majesty palm	Assessment	Pacific	-3	low risk
Remusatia pumila	Araceae		Assessment	U.S. (Florida)	4	accept*
Rhaphiolepis indica	Rosaceae	Indian hawthorn	Assessment	Pacific	3	low risk*
*Rhaphiolepis umbellata*	Rosaceae	Japanese hawthorn	Assessment	Pacific	0	evaluate*
*Rhapis excelsa*	Arecaceae	lady palm	Assessment	Pacific	0	low risk
*Rhipsalis baccifera*	Cactaceae	mistletoe cactus	Assessment	Pacific	0	low risk
Rhizophora mangle	Rhizophoraceae	red mangrove	Assessment	Pacific	13	high risk
Rhododendron indicum	Ericaceae	evergreen azalea	Assessment	Pacific	4	evaluate
Rhododendron simsii	Ericaceae	Formosa azalea	Assessment	U.S. (Florida)	0	accept
Rhodomyrtus tomentosa	Myrtaceae	rose myrtle	Assessment	Pacific	8	high risk
Rhus taitensis	Anacardiaceae	sumac	Assessment	Pacific	7	high risk**
Richardia brasiliensis	Rubiaceae	Brazilian pusley	Assessment	U.S. (Florida)	7	reject
Richardia scabra	Rubiaceae	Florida pusley	Assessment	U.S. (Florida)	8	reject
Ricinus communis	Euphorbiaceae	castor bean	Assessment	Australia	8	reject
Ricinus communis	Euphorbiaceae	castor bean	Assessment	Pacific	21	high risk
Ricinus communis	Euphorbiaceae	castor bean	Assessment	U.S.	24	reject
Ricinus communis	Euphorbiaceae	castor bean	Assessment	U.S. (Florida)	24	reject
Rivina humilis	Phytolaccaceae	pigeonberry	Assessment	Pacific	11	high risk
Rohdea watanabei	Liliaceae		Assessment	U.S. (Florida)	0	accept
*Roldana petasitis*	Asteraceae	velvet groundsel	Assessment	Pacific	12	high risk
*Rondeletia amoena*	Rubiaceae	rondeletia	Assessment	Pacific	-2	low risk
Rondeletia leucophylla	Rubiaceae	Panama rose	Assessment	U.S. (Florida)	-1	accept
Rondeletia odorata	Rubiaceae	rondeletia	Assessment	Pacific	-4	low risk
Rosa laevigata	Rosaceae	Cherokee rose	Assessment	Pacific	16	high risk
Rosa multiflora	Rosaceae	multiflora rose	Assessment	Pacific	12	high risk
Rottboellia cochinchinensis	Poaceae	itchgrass	Assessment	U.S. (Florida)	22	reject
Rottboellia cochinchinensis	Poaceae	itchgrass	Assessment	United States		high risk
*Roystonia oleracea*	Arecaceae	cabbage palm	Assessment	Pacific	-3	low risk
*Roystonea regia*	Arecaceae	Florida royal palm	Assessment	Pacific	0	low risk
Rubus alceifolius	Rosaceae	giant bramble	Assessment	Australia	11	reject
*Rubus argutus*	Rosaceae	prickly Florida blackberry	Assessment	Pacific	21.5	high risk
*Rubus discolor*	Rosaceae	Himalayan blackberry	Assessment	Pacific	24	high risk
*Rubus ellipticus*	Rosaceae	yellow Himalayan blackberry	Assessment	Pacific	18	high risk
*Rubus loganobaccus*	Rosaceae	boysenberry	Assessment	Pacific	11	high risk
*Rubus 'Marion'*	Rosaceae	Marionberry	Assessment	Pacific	4	evaluate
*Rubus 'Natchez'*	Rosaceae	Rubus 'Natchez'	Assessment	Pacific	7	high risk
*Rubus niveus*	Rosaceae	Ceylon raspberry	Assessment	Pacific	19	high risk
*Rubus rosifolius*	Rosaceae	thimbleberry	Assessment	Pacific	10	high risk
*Rubus sieboldii*	Rosaceae	Molucca raspberry	Assessment	Pacific	10	high risk
*Rubus 'Triple Crown'*	Rosaceae	Triple Crown	Assessment	Pacific	3	evaluate
Ruellia caroliniensis	Acanthaceae	Carolina wild petunia	Assessment	Pacific	1	low risk*
Ruellia makoyana	Acanthaceae	monkey plant	Assessment	U.S. (Florida)	-1	accept
Ruellia squarrosa	Acanthaceae	water bluebell	Assessment	Pacific	7	high risk
*Ruellia tuberosa*	Acanthaceae	minnieroot	Assessment	Pacific	8	high risk
Rumex brownii	Polygonaceae	brown dock	Assessment	Australia	16	reject
Rumex crispus	Polygonaceae	curly dock	Assessment	Australia	16	reject
Rumex crispus	Polygonaceae	curly dock	Assessment	U.S. (Florida)	26	reject
Rumex pulcher	Polygonaceae	fiddle dock	Assessment	Australia	16	reject
Rumex pulcher	Polygonaceae	fiddle dock	Assessment	U.S. (Florida)	11	reject
Rumohra adiantiformis	Polypodiaceae	leatherleaf fern	Assessment	U.S. (Florida)	3	accept*
Russelia equisetiformis	Scrophulariaceae	coralplant	Assessment	Pacific	-2	low risk
Ruttya fruticosa	Acanthaceae	rabbit ears	Assessment	Pacific	1	evaluate