| 1982 : Hosoo Pass, Ashio, Tochigi Pref. | |||
| TWTwNo | Family | Scientific Name | |
| 2554 | Ericaceae | Rhododendron quinquefolium Bisset et Moore | |
| 2555 | Theaceae | Stuartia pseudo-camellia Maxim. | |
| 2556 | Ericaceae | Lyonia neziki Nakai et Hara | |
| 2557 | Ericaceae | Rhododendron wadanum Makino | |
| 2558 | Aceraceae | Acer mono Maxim. | |
| 2559 | Ericaceae | Rhododendron quinquefolium Bisset et Moore | |
| 2560 | Cornaceae | Benthamidia japonica (Sieb. et Zucc.) Hara | |
| 2561 | Ericaceae | Rhododendron kempferi Planch. | |
| 2562 | Ericaceae | Rhododendron wadanum Makino | |
| 2563 | Ericaceae | Rhododendron kempferi Planch. | |
| 2564 | Rosaceae | Sorbus alnifolia (Sieb. et Zucc.) C. Koch | |
| 2565 | Betulaceae | Betula grossa Sieb. et Zucc. | |
| 2566 | Betulaceae | Betula ermanii Cham. | |
| 2567 | Betulaceae | Betula ermanii Cham. | |
| 2568 | Betulaceae | Betula maximowicziana Regel | |
| 2569 | Betulaceae | Betula schmidtii Regel | |
| 2570 | Betulaceae | Betula schmidtii Regel | |
| 2571 | Betulaceae | Betula schmidtii Regel | |
| 2572 | Fagaceae | Fagus crenata Blume | |
| 2573 | Aceraceae | Acer rufinerve Sieb. et Zucc. | |
| 2574 | Aceraceae | Acer rufinerve Sieb. et Zucc. | |
| 2575 | Aceraceae | Acer micranthum Sieb. et Zucc. | |
| 2576 | Aceraceae | Acer sieboldianum Miq. | |
| 2577 | Araliaceae | Acanthopanax sciadophylloides Franch. et Savat. | |
| 2578 | Araliaceae | Acanthopanax sciadophylloides Franch. et Savat. | |
| 2579 | Magnoliaceae | Magnolia obovata Thunb. | |
| 2580 | Magnoliaceae | Magnolia obovata Thunb. | |
| 2581 | Rosaceae | Prunus verecunda (Koidz.) Koehne | |
| 2582 | Rosaceae | Sorbus alnifolia (Sieb. et Zucc.) C. Koch | |
| 2583 | Rosaceae | Sorbus alnifolia (Sieb. et Zucc.) C. Koch | |
| 2584 | Rosaceae | Malus tschonoskii (Maxim) C.K. Schn. | |
| 2585 | Rosaceae | Sorbus japonica (Decne.) Hedlund | |
| 2586 | Betulaceae | Alnus hirsuta Turcz. var. sibirica (Fischer.) C.K. Schn. | |
| 2587 | Betulaceae | Alnus hirsuta Turcz. | |
| 2588 | Betulaceae | Alnus hirsuta Turcz. | |
| 2589 | Betulaceae | Alnus hirsuta Turcz. | |
| 2590 | Oleaceae | Fraxinus lanuginosa Koidz. f. serrata (Nakai) Murata | |
| 2591 | Betulaceae | Carpinus laxiflora (Sieb. et Zucc.) Bl. | |
| 2592 | Salicaceae | Populus sieboldii Miq. | |
| 2593 | Araliaceae | Kalopanax pictus (Thunb.) Nakai | |
| 2594 | Clethraceae | Clethra barvinervis Sieb. et Zucc. | |
| 2595 | Theaceae | Stuartia pseudo-camellia Maxim. | |
| 2596 | Ericaceae | Lyonia neziki Nakai et Hara | |
| 2597 | Ericaceae | Lyonia neziki Nakai et Hara | |
| 1986 : Near Hosoo Pass, Mikouchi, Ashio Cho, Kami-tsuga Gun, Tochigi Pref. | |||
| 4877 | Hamamelidaceae | Hamamelis japonica Sieb. et Zucc. | |
| 4878 | Aceraceae | Acer micranthum Sieb. et Zucc. | |
| 4879 | Ericaceae | Rhododendron quinquefolium Bisset et Moore | |
| 4880 | Ericaceae | Rhododendron wadanum Makino | |
| 4881 | Ericaceae | Vaccinium oldhamii Miq. | |
| 4882 | Ericaceae | Enkianthus campanulatus (Miq.) Nicholson | |
| 4883 | Saxifragaceae | Hydrangea paniculata Sieb. et Zucc. | |
| 4884 | Saxifragaceae | Schizophragma hydrangeoides Sieb. et Zucc. | |
| 4885 | Caprifoliaceae | Weigela decora (Nakai) Nakai | |
| 4886 | Caprifoliaceae | Sambucus sieboldiana Bl. | |
| 1982 : Ashio Tochigi Pref. | |||
| 13441 | Fagaceae | Quercus mongolica Fischer ex Turcz. var. grosseserrata (Blume) Rehd.et Wils. | |
| 13442 | Fagaceae | Quercus mongolica Fischer ex Turcz. var. grosseserrata (Blume) Rehd.et Wils. | |
| 13443 | Fagaceae | Quercus mongolica Fischer ex Turcz. var. grosseserrata (Blume) Rehd.et Wils. | |
| 13444 | Fagaceae | Quercus mongolica Fischer ex Turcz. var. grosseserrata (Blume) Rehd.et Wils. | |
| 13445 | Fagaceae | Quercus mongolica Fischer ex Turcz. var. grosseserrata (Blume) Rehd.et Wils. | |