Rhaphiolepis indica (L.) Lindl. ex Ker var. umbellata (Thunb. ex Murray) H.Ohashi (Synonym : Rhaphiolepis integerrima Hook. & Arn.)

Family : Rosaceae

Rheum coreanum Nakai

Family : Polygonaceae

Rheum rhabarbarum L.

Family : Polygonaceae

Rhodiola angusta Nakai (Synonym : Sedum ohbae Kozhevn.)

Family : Crassulaceae

Rhodiola elongata (Ledeb.) Fisch. & C.A.Mey. (Synonym : Sedum elongatum Ledeb.)

Family : Crassulaceae

Rhodiola ramosa Nakai

Family : Crassulaceae

Rhodiola rosea L. (Synonym : Sedum roseum (L.) Scop.)

Family : Crassulaceae

Rhododendron aureum Georgi (Synonym : Rhododendron officinale Salisb.)

Family : Ericaceae

Rhododendron brachycarpum D.Don ex G.Don (Synonym : Rhododendron brachycarpum D.Don ex G.Don subsp. tigerstedtii Nitz.)

Family : Ericaceae

Rhododendron dauricum L. (Synonym : Azalea dahurica (L.) K.Koch)

Family : Ericaceae