| Asparagaceae | |
Hosta aequinoctiiantha
| Koidz. ex Araki | Acta Phytotax. Geobot. 11: 265 | 1942 |
| Asparagaceae | |
Hosta albofarinosa
| D.Q. Wang | Guihaia 9(4): 297–298, f. 1 | 1989 |
| Asparagaceae | |
Hosta albomarginata
| (Hook.) Ohwi | Acta Phytotax. Geobot. 11(4): 265 | 1942 |
| Asparagaceae | |
Hosta alismifolia
| F. Maek. | J. Jap. Bot. 59(5): 157 | 1984 |
| Asparagaceae | |
Hosta × alismifolia
| F. Maek. | J. Jap. Bot. 59: 157 | 1984 |
| Asparagaceae | |
Hosta aoki
| L.H. Bailey | Stand. Cycl. Hort. 1604 | 1915 |
| Asparagaceae | |
Hosta apoiensis
| Nakai ex Miyabe & Kudô | J. Fac. Agric. Hokkaido Univ. 26: 315 | 1932 |
| Asparagaceae | |
Hosta atropurpurea
| Nakai | Bot. Mag. (Tokyo) 44: 26 | 1930 |
| Asparagaceae | |
Hosta aurea
| L.H. Bailey | Stand. Cycl. Hort. 1605 | 1915 |
| Asparagaceae | |
Hosta bella
| H.R. Wehrh. | Gartenflora 85: 247 | 1936 |
| Asparagaceae | |
Hosta caerulea
| Tratt. | | |
| Asparagaceae | |
Hosta calliantha
| Araki | Acta Phytotax. Geobot. 11: 324 | 1942 |
| Asparagaceae | |
Hosta campanulata
| Araki | Acta Phytotax. Geobot. 11: 325 | 1942 |
| Asparagaceae | |
Hosta capitata
| Nakai | | |
| Asparagaceae | |
Hosta caput-avis
| (F. Maek.) F. Maek. | Iconogr. Pl. Asiae Orient. 5: 495 | 1952 |
| Asparagaceae | |
Hosta cathayana
| F. Maek. | J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot. 5: 397 | 1940 |
| Asparagaceae | |
Hosta clausa
| Nakai | | |
| Asparagaceae | |
Hosta clavata
| F. Maek. | J. Jap. Bot. 14: 45 | 1938 |
| Asparagaceae | ! |
Hosta coerulea
| Tratt. | Arch. Gewächsk. 2: 144 | 1814 |
| Asparagaceae | |
Hosta crassifolia
| Araki | Acta Phytotax. Geobot. 12: 118 | 1943 |
| Asparagaceae | |
Hosta crispula
| F. Maek. | J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot. 5: 364 | 1940 |
| Asparagaceae | |
Hosta cucullata
| (Witte) Koidz. | Acta Phytotax. Geobot. 5: 39 | 1936 |
| Asparagaceae | |
Hosta decorata
| L.H. Bailey | Gentes Herb. 2: 141 | 1930 |
| Asparagaceae | |
Hosta densa
| F. Maek. | J. Jap. Bot. 14: 46 | 1938 |
| Asparagaceae | |
Hosta elata
| Hyl. | Acta Horti Berg. 16: 394 | 1954 |
| Asparagaceae | |
Hosta ensata
| F. Maek. | J. Jap. Bot. 13(12): 900 | 1937 |
| Asparagaceae | |
Hosta erromena
| Stearn ex L.H. Bailey | Gentes Herb. 2: 438 | 1932 |
| Asparagaceae | |
Hosta fluctuans
| F. Maek. | J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot. 5: 355 | 1940 |
| Asparagaceae | |
Hosta fortunei
| (Baker) L.H. Bailey | Stand. Cycl. Hort. 1604 | 1915 |
| Asparagaceae | |
Hosta gigantea
| Koidz. | Acta Phytotax. Geobot. 5: 39 | 1936 |
| Asparagaceae | |
Hosta glauca
| (Siebold ex Miq.) Stearn | Gard. Chron. III, 90: 27 | 1931 |
| Asparagaceae | |
Hosta gracillima
| F. Maek. | Iconogr. Pl. Asiae Orient. 1: 72 | 1936 |
| Asparagaceae | |
Hosta harunaensis
| Honda | J. Jap. Bot. 11(8): 572 | 1935 |
| Asparagaceae | |
Hosta helonioides
| F. Maek. | J. Jap. Bot. 13: 895 | 1937 |
| Asparagaceae | |
Hosta hippeastrum
| F. Maek. | J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot. 5: 383 | 1940 |
| Asparagaceae | |
Hosta hypoleuca
| Murata | Acta Phytotax. Geobot. 19: 67 | 1962 |
| Asparagaceae | |
Hosta ibukiensis
| Araki | Acta Phytotax. Geobot. 11: 325 | 1942 |
| Asparagaceae | |
Hosta intermedia
| (Makino) F. Maek. | Bot. Mag. (Tokyo) 52: 41 | 1938 |
| Asparagaceae | * |
Hosta japonica
| Thunb. | | |
| Asparagaceae | ! |
Hosta japonica
| Tratt. | Arch. Gewächsk. 1: 55, t. 89 | 1812 [1814] |
| Asparagaceae | |
Hosta jonesii
| M. Chung | | |
| Asparagaceae | |
Hosta jonesii
| M.G. Chung | Ann. Missouri Bot. Gard. 76: 920 | 1989 |
| Asparagaceae | |
Hosta kikutii
| F. Maek. | J. Jap. Bot. 13: 902 | 1937 |
| Asparagaceae | |
Hosta kiyosumiensis
| F. Maek. | J. Jap. Bot. 11(10): 689–690, f. 15 | 1935 |
| Asparagaceae | |
Hosta laevigata
| W.G. Schmid | Genus Hosta 316 | 1991 |
| Asparagaceae | |
Hosta lancifolia
| Engl. | Nat. Pflanzenfam. 2[II,5]: 40 | 1888 |
| Asparagaceae | * |
Hosta latifolia
| (Miq.) Matsum. | Index Pl. Jap. 2: 200 | 1905 |
| Asparagaceae | |
Hosta leptophylla
| F. Maek. | Engei-daijiten 2: 636 | 1950 |
| Asparagaceae | |
Hosta liliiflora
| (F. Maek.) Araki | Acta Phytotax. Geobot. 11: 328 | 1942 |
| Asparagaceae | |
Hosta longipes
| (Franch. & Sav.) Matsum. | List Pl. Nikko 21 | 1894 |
| Asparagaceae | |
Hosta longissima
| (Honda) F. Maek. | J. Jap. Bot. 13: 894 | 1937 |
| Asparagaceae | |
Hosta minor
| Nakai | | |
| Asparagaceae | |
Hosta miquelii
| (Miq.) Moldenke | Repert. Spec. Nov. Regni Veg. 40: 198 | 1936 |
| Asparagaceae | * |
Hosta mira
| F. Maek. | Bot. Mag. (Tokyo) 52: 43 | 1938 |
| Asparagaceae | |
Hosta montana
| F. Maek. | J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot. 5: 356 | 1940 |
| Asparagaceae | |
Hosta montana
| | | |
| Asparagaceae | |
Hosta nakaiana
| F. Maek. | J. Jap. Bot. 11(10): 687–689, f. 13 & 14 | 1935 |
| Asparagaceae | |
Hosta nigrescens
| (Makino) F. Maek. | J. Jap. Bot. 13: 901 | 1937 |
| Asparagaceae | |
Hosta okamii
| F. Maek. | J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot. 5: 398 | 1940 |
| Asparagaceae | |
Hosta okamotoi
| Araki | Acta Phytotax. Geobot. 11: 321 | 1942 |
| Asparagaceae | |
Hosta opipara
| F. Maek. | J. Jap. Bot. 13: 895 | 1937 |
| Asparagaceae | |
Hosta ovata
| Spring | | |
| Asparagaceae | |
Hosta pachyscapa
| F. Maek. | J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot. 5: 383 | 1940 |
| Asparagaceae | |
Hosta petrophila
| F. Maek. | Bot. Mag. (Tokyo) 52: 42 | 1938 |
| Asparagaceae | |
Hosta plantaginea
| (Lam.) Asch. | Bot. Zeitung (Berlin) 21(7): 53 | 1863 |
| Asparagaceae | |
Hosta polyneuron
| F. Maek. | Iconogr. Pl. Asiae Orient. 5: 497 | 1952 |
| Asparagaceae | |
Hosta praecox
| F. Maek. | Bot. Mag. (Tokyo) 52: 42 | 1938 |
| Asparagaceae | |
Hosta pulchella
| N. Fujita | Acta Phytotax. Geobot. 27: 89 | 1976 |
| Asparagaceae | |
Hosta pycnophylla
| F. Maek. | | |
| Asparagaceae | |
Hosta rectifolia
| Nakai | | |
| Asparagaceae | |
Hosta rohdeifolia
| F. Maek. | J. Jap. Bot. 13: 897 | 1937 |
| Asparagaceae | |
Hosta rupifraga
| Nakai | Bot. Mag. (Tokyo) 44: 27 | 1930 |
| Asparagaceae | |
Hosta sachalinensis
| Koidz. | | |
| Asparagaceae | |
Hosta sacra
| F. Maek. | J. Jap. Bot. 14: 47 | 1938 |
| Asparagaceae | |
Hosta shikokiana
| N. Fujita | Acta Phytotax. Geobot. 27: 93 | 1976 |
| Asparagaceae | |
Hosta sieboldiana
| Engl. | Nat. Pflanzenfam. 2(5): 40 | 1887 |
| Asparagaceae | |
Hosta sieboldii
| J.W. Ingram | Baileya 15: 29 | 1967 |
| Asparagaceae | |
Hosta sparsa
| Nakai | Bot. Mag. (Tokyo) 44: 514 | 1930 |
| Asparagaceae | |
Hosta takahashii
| Araki | Acta Phytotax. Geobot. 11: 327 | 1942 |
| Asparagaceae | |
Hosta takiensis
| Araki | Acta Phytotax. Geobot. 11: 322 | 1942 |
| Asparagaceae | |
Hosta taquetii
| (Levl.) M.G. Chung & J.W. Kim | Sida 14(3): 415 | 1991 |
| Asparagaceae | |
Hosta tardiflora
| (Irving) Stearn | Hardy Bulbs 2: 303 | 1938 |
| Asparagaceae | |
Hosta tardiva
| Nakai | Bot. Mag. (Tokyo) 44: 513 | 1930 |
| Asparagaceae | |
Hosta tibae
| F. Maek. | J. Jap. Bot. 59: 154 | 1984 |
| Asparagaceae | |
Hosta tokudama
| F. Maek. | J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot. 5: 366 | 1940 |
| Asparagaceae | |
Hosta tortifrons
| F. Maek. | J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot. 5: 389 | 1940 |
| Asparagaceae | |
Hosta tosana
| F. Maek. | J. Fac. Sci. Univ. Tokyo, Sect. 3, Bot. 5: 376 | 1940 |
| Asparagaceae | |
Hosta tsushimensis
| N. Fujita | | |
| Asparagaceae | |
Hosta undulata
| (Otto & A. Dietr.) L.H. Bailey | Gentes Herb. 1: 133 | 1923 |
| Asparagaceae | |
Hosta univittata
| (Miq.) Grey | Hardy Bulbs 3: 303 | 1938 |
| Asparagaceae | |
Hosta ventricosa
| (Salisb.) Stearn | Gard. Chron., ser. 3 90(2324): 27 | 1931 |
| Asparagaceae | |
Hosta venusta
| F. Maek. | J. Jap. Bot. 11(4): 245–247, f. 2 & 3 | 1935 |
| Asparagaceae | |
Hosta viridis
| (Siebold ex Miq.) Koidz. | Acta Phytotax. Geobot. 5: 39 | 1936 |
| Asparagaceae | |
Hosta yakusimensis
| (Masam.) F. Maek. | Engei-daijiten 2: 633 | 1950 |
| Asparagaceae | |
Hosta yingeri
| S.B. Jones | | |