Barbarea orthoceras Ledeb. (Synonym : Barbarea vulgaris R.Br. var. sibirica (Regel) Kom.)

Family : Brassicaceae

Barbarea vulgaris W.T.Aiton (Synonym : Barbarea sicula Gren. & Godr.)

Family : Brassicaceae [Naturalized plant]

Barnardia japonica (Thunb.) Schult.f. (Synonym : Ornithogalum sinense Lour.)

Family : Liliaceae

Barnardia japonica (Thunb.) Schult.f. f. albiflora (Satake) Yonek. (Synonym : Scilla scilloides (Lindl.) Druce f. albiflora (Satake) Satake & Okuyama)

Family : Liliaceae

Bassia littorea (Makino) Freitag & G.Kadereit (Synonym : Kochia scoparia (L.) Schrad. var. littorea Makino)

Family : Chenopodiaceae

Bassia scoparia (L.) A.J.Scott (Synonym : Chenopodium scoparia L.)

Family : Chenopodiaceae

Beckmannia syzigachne (Steud.) Fernald (Synonym : Panicum syzigachne Steud.)

Family : Poaceae

Begonia cucullata Willd. (Synonym : Begonia semperflorens Link & Otto)

Family : Begoniaceae

Begonia grandis Dryand. (Synonym : Knesebeckia discolor Klotzsch)

Family : Begoniaceae

Bellis perennis L. (Synonym : Bellis scaposa Gilib.)

Family : Asteraceae