| 1964 : Ishiyama, Tokachi-shimizu Machi Kamikawa Gun, Hokkaido | ||||
| TWTwNo | Family | Scientific Name | ||
| 9298 | Salicaceae | Populus sieboldii Miq. | ||
| 1964 : Futamata, Kuttari Kamikawa Gun, Hokkaido | ||||
| 9281 | Pinaceae | Picea jezoensis (Sieb. et Zucc.) Carr. | ||
| 9282 | Pinaceae | Picea glehnii (Fr.Schm.) Masters | ||
| 9297 | Salicaceae | Populus maximowiczii A. Henry | ||
| 9321 | Fagaceae | Quercus mongolica Fischer ex Turcz. var. grosseserrata (Blume) Rehd.et Wils. | ||
| 9325 | Ulmaceae | Ulmus davidiana Planch. var. japonica (Rehder) Nakai | ||
| 9338 | Tiliaceae | Tilia japonica (Miq.) Simonkai | ||
| 9340 | Tiliaceae | Tilia maximowicziana Shirasawa | ||