Kerria japonica (L.) DC. (Synonym : Kerria japonica (L.) DC. var. pleniflora Witte)

Family : Rosaceae

Kirengeshoma koreana Nakai (Synonym : Kirengeshoma palmata Yatabe var. koreana (Nakai) M.Kim)

Family : Saxifragaceae

Kitagawia komarovii Pimenov

Family : Apiaceae

Klasea hayatae (Nakai) Kitag. (Synonym : Serratula hayatae Nakai)

Family : Asteraceae

Koeleria macrantha (Ledeb.) Schult. (Synonym : Aira macrantha Ledeb.)

Family : Poaceae

Koelreuteria paniculata Laxm. (Synonym : Koelreuteria chinensis (Murray) Hoffmanns.)

Family : Sapindaceae

Koenigia polystachya (Wall. ex Meisn.) T.M.Schust. & Reveal (Synonym : Pleuropteropyrum polystachyum (Wall. ex Meisn.) Munshi & Javeid)

Family : Polygonaceae [Naturalized plant]

Korthalsella japonica (Thunb.) Engl. (Synonym : Viscum japonicum Thunb.)

Family : Viscaceae

Kummerowia stipulacea (Maxim.) Makino (Synonym : Lespedeza striata Hook. & Arn. var. stipulacea Debeaux)

Family : Fabaceae

Kummerowia striata (Thunb.) Schindl. (Synonym : Hedysarum striatum Thunb.)

Family : Fabaceae