Frangula californica
coffeeberry
Ranunculus asiaticus
buttercup
Ranunculus asiaticus
buttercup
Ratibida columnifera
Mexican hat, prairie coneflower
Ratibida columnifera
prairie coneflower, Mexican hat
Rhamnus alaternus
variegated italian buckthorI
Rhaphiolepis indica
Indian hawthorn
Rhaphiolepis indica
Indian hawthorn
Rhodanthemum hosmariense
Moroccan daisy
Rhus integrifolia
lemonade berry
Rhus ovata
sugar bush
Ribes aureum
golden currant
Ribes aureum
golden currant
Ribes sanguineum
Claremont' flowering currant
Ribes sanguineum
Inverness White' flowering currant
Ribes sanguineum
red flowering currant
Ribes sanguineum
red flowering currant
Ribes sanguineum
pink flowering currant
Ribes speciosum
fuchsia-flowered gooseberry
Romneya coulteri
Matilija poppy
Romneya coulteri
Matilija popp
Romneya coulteri
Matilija poppy
Rosa ‘Apple Blossom’
Apple Blossm' rose
Rosa ‘Flower Carpet’, Artemisia ‘Powis Castle’, Nepeta
Powis Castle' artemisia
Rosa ‘Mutabilis’
Mutabilis' rose
Rosa banksiae
white Lady Banks rose
Rosa banksiae
Lady Banks rose
Rubus pentalobus
creeping bramble
Rudbeckia hirta
black-eyed Susan
Ruta graveolens
rue, comfrey
Salvia rosemarinus
rosemary