Rodgersia podophylla A.Gray (Synonym : Rodgersia japonica Regel)

Family : Saxifragaceae

Rohdea japonica (Thunb.) Roth (Synonym : Rohdea sinensis H.Lév.)

Family : Commelinaceae

Rorippa cantoniensis (Lour.) Ohwi (Synonym : Nasturtium microspermum DC. var. vegetius Maxim.)

Family : Brassicaceae

Rorippa globosa (Turcz. ex Fisch. & C.A.Mey.) Hayek (Synonym : Nasturtium globosum Turcz. ex Fisch. & C.A.Mey. f. bivalvis N.Busch)

Family : Brassicaceae

Rorippa indica (L.) Hiern (Synonym : Nasturtium indicum DC.)

Family : Brassicaceae

Rorippa palustris (L.) Besser (Synonym : Nasturtium semipinnatifidum Hook.)

Family : Brassicaceae

Rorippa sylvestris (L.) Besser (Synonym : Cardamine sylvestris (L.) Bubani)

Family : Brassicaceae [Naturalized plant]

Rosa acicularis Lindl. (Synonym : Rosa sayi Schwein.)

Family : Rosaceae

Rosa banksiae Aiton (Synonym : Rosa inermis Roxb.)

Family : Rosaceae

Rosa chinensis Jacq. (Synonym : Rosa sinica L.)

Family : Rosaceae