Canada

Ajuga

Ajuga reptans

Alder

Alnus glutinosa

Alexanders

Angelica atropurpurea

Allegheny Serviceberry

Amelanchier arborea

alpine lady's-mantle

Alchemilla alpina

All Species in Canada

Richardson's alumroot

Heuchera richardsonii

Richardson's anemone

Anemonastrum richardsonii

Richardson's crane's-bill

Geranium richardsonii

Richardson's needlegrass

Eriocoma richardsonii

Richardson’s Willow

Salix richardsonii

Ridgewinged fungus beetle

Thes bergrothi

Ripgut brome

Bromus diandrus

Riverbank Lupine

Lupinus rivularis

River Bulrush

Bolboschoenus fluviatilis

river hawthorn

Crataegus douglasii

River Maple

Acer saccharinum

Rivet wheat

Triticum turgidum

Roadside pepperweed

Lepidium ruderale

Robbins Spikerush

Eleocharis robbinsii

Robinson's hawkweed

Hieracium robinsonii

Extinct

robust iris

Iris robusta

Rock Draba

Draba arabisans

Rock Pigeon

Columba livia

Rock Sedge

Carex saxatilis

Rock Sedge

Carex rupestris

Rock soapwort

Saponaria ocymoides

Rockspray

Cotoneaster horizontalis

Rock Whitlowgrass

Draba norvegica

Rocky mountain clubrush

Schoenoplectiella saximontana

Data Deficient

Rocky Mountain cow-lily

Nuphar polysepala

Rocky Mountain draba

Draba crassifolia

Rocky Mountain goosefoot

Oxybasis salina

Rocky Mountain iris

Iris missouriensis

Rocky Mountain pussytoes

Antennaria media

Rocky Mountain sedge

Carex saximontana

Rocky Mountain willowherb

Epilobium saximontanum

Rolland's bulrush

Trichophorum pumilum

Root-eating beetle

Monotoma picipes

Rootless Duckweed

Wolffia arrhiza

Rorippa

Rorippa anceps

rose leafhopper

Edwardsiana rosae

Rosendahl's golden-saxifrage

Chrysosplenium rosendahlii

Rose-of-Sharon

Hypericum calycinum

Rose Plume

Cnaemidophorus rhododactyla

Rose Pogonia

Pogonia ophioglossoides

Ross' sandwort

Sabulina rosei

Ross's avens

Geum rossii

Ross Sedge

Carex rossii

rosy gilia

Gilia sinuata

Extinct

Rough Bedstraw

Galium asprellum

Rough Bluegrass

Poa trivialis

rough bugelweed

Lycopus asper

Rough chervil

Chaerophyllum temulum

rough corn bedstraw, corn cleavers

Galium tricornutum

Critically Endangered

rough-fruit fairy-bells

Prosartes trachycarpa

Rough Hawk's-beard

Crepis biennis

Rough Hawkweed

Hieracium scabrum

Rough-leaf Dogwood

Cornus drummondii

Rough-Leaf Goldenrod

Solidago patula

Rough-Leaved Mountain Rice

Oryzopsis asperifolia

Rough Marsh-mallow

Althaea hirsuta

Round-fruited Sedge

Carex rotundata

Round-headed borer

Saperda candida

Round-Leaf Dogwood

Cornus rugosa

round-leaved eyebright

Euphrasia suborbicularis