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Taxonomic exploration
Trees
Taxa with a Tree growth habit — from coast redwoods to high-elevation krummholz pines.
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- growth_habit=Tree
Showing 1,901–1,950 of 2,324.
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Rhus kearneyi F.A. Barkley RHKEKearney's sumac · Anacardiaceae -
Rhus lancea L. f. RHLA11African sumac · Anacardiaceae -
Rhus lanceolata (A. Gray) Britton RHLA3prairie sumac · Anacardiaceae -
Rhus microphylla Engelm. ex A. Gray RHMI3littleleaf sumac · Anacardiaceae -
Rhus ovata S. Watson RHOVsugar sumac · Anacardiaceae -
Rhus sandwicensis A. Gray RHSA2neneleau · Anacardiaceae -
Rhus typhina L. RHTYstaghorn sumac · Anacardiaceae -
Rhus virens Lindh. ex A. Gray RHVI3evergreen sumac · Anacardiaceae - Rhus virens Lindh. ex A. Gray var. choriophylla (Wooton & Standl.) L.D. Benson RHVICevergreen sumac · Anacardiaceae
- Rhus virens Lindh. ex A. Gray var. virens RHVIVevergreen sumac · Anacardiaceae
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Rhus ×borealis Greene [glabra × typhina] RHBOhybrid sumac · Anacardiaceae -
Ricinus communis L. RICO3castorbean · Euphorbiaceae -
Robinia hispida L. ROHIbristly locust · Fabaceae - Robinia hispida L. var. fertilis (Ashe) R.T. Clausen ROHIF8bristly locust · Fabaceae
- Robinia hispida L. var. hispida ROHIHbristly locust · Fabaceae
- Robinia hispida L. var. kelseyi (J.F. Cowell ex Hutch.) Isely ROHIKKelsey's locust · Fabaceae
- Robinia hispida L. var. nana (Elliott) DC. ROHINbristly locust · Fabaceae
- Robinia hispida L. var. rosea Pursh ROHIRbristly locust · Fabaceae
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Robinia neomexicana A. Gray RONENew Mexico locust · Fabaceae - Robinia neomexicana A. Gray var. neomexicana RONENNew Mexico locust · Fabaceae
- Robinia neomexicana A. Gray var. rusbyi (Wooton & Standl.) W.C. Martin & C.R. Hutchins ex Peabody RONERRusby's locust · Fabaceae
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Robinia pseudoacacia L. ROPSblack locust · Fabaceae -
Robinia viscosa Vent. ROVIclammy locust · Fabaceae - Robinia viscosa Vent. var. hartwegii (Koehne) Ashe ROVIH2Hartweg's locust · Fabaceae
- Robinia viscosa Vent. var. viscosa ROVIVclammy locust · Fabaceae
- Robinia ×margarettiae Ashe (pro sp.) [hispida × pseudoacacia] ROMAhybrid locust · Fabaceae
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Roystonea borinquena O.F. Cook ROBOPuerto Rico royal palm · Arecaceae -
Roystonea regia (Kunth) O.F. Cook, nom. cons. RORE2royal palm · Arecaceae - Sabal bermudana L.H. Bailey SABEBermuda palm · Arecaceae
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Sabal causiarum (O.F. Cook) Becc. SACAPuerto Rico palmetto · Arecaceae -
Sabal etonia Swingle ex Nash SAETscrub palmetto · Arecaceae -
Sabal mexicana Mart. SAME8Rio Grande palmetto · Arecaceae -
Sabal minor (Jacq.) Pers. SAMI8dwarf palmetto · Arecaceae -
Sabal palmetto (Walter) Lodd. ex Schult. & Schult. f. SAPAcabbage palmetto · Arecaceae - Sabal ×brazoriensis D.H. Goldman, Lockett, & Read [minor × palmetto] SABR4Brazoria palmetto · Arecaceae
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Salix alaxensis (Andersson) Coville SAALfeltleaf willow · Salicaceae - Salix alaxensis (Andersson) Coville var. alaxensis SAALAfeltleaf willow · Salicaceae
- Salix alaxensis (Andersson) Coville var. longistylis (Rydb.) C.K. Schneid. SAALLfeltleaf willow · Salicaceae
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Salix alba L. SAAL2white willow · Salicaceae -
Salix amygdaloides Andersson SAAM2peachleaf willow · Salicaceae -
Salix arbusculoides Andersson SAAR3littletree willow · Salicaceae -
Salix atrocinerea Brot. SAAT2large gray willow · Salicaceae -
Salix babylonica L. SABAweeping willow · Salicaceae -
Salix barclayi Andersson SABA3Barclay's willow · Salicaceae -
Salix bebbiana Sarg. SABE2Bebb willow · Salicaceae -
Salix bonplandiana Kunth SABOBonpland willow · Salicaceae -
Salix breweri Bebb SABR2Brewer's willow · Salicaceae -
Salix caroliniana Michx. SACA5coastal plain willow · Salicaceae -
Salix cinerea L. SACIlarge gray willow · Salicaceae -
Salix discolor Muhl. SADIpussy willow · Salicaceae