| Family | Aquifoliaceae |
| Scientific name | Ilex rotunda Thunberg |
| Synonyms | Ilex koshunensis Yamamoto; Ilex sasakii Yamamoto; Ilex microcarpa Lindley ex Paxton; Ilex laevigata Blume ex Miquel |
| Common name | (Japanese common name) kurogane-mochi [black iron mochi (mochi = Ilex plants)] |
| (English common name) kurogane holly | |
| Distribution | (Japan) Honshu (west of Kanto region), Shikoku, Kyushu, Okinawa |
| (Other nations) Korea, China, Taiwan, Vietnam | |
| Chromosomal number | unknown |
| Description | Plants 20m. Leaves 5-8cm. Flowers pale purple 4mm, flowering in May to June. Evergreen. Arbor trees. |
| Reference | Ilex rotunda Thunb. |
| Authentication of biologic materials using DNA-DNA hybridization on a solid support (US Patent 7297490/2007) |
| May 2007 at Koishikawa Botanical Garden |
May 2007 at Koishikawa Botanical Garden |
May 2007 at Koishikawa Botanical Garden |
| December 2006 at Koishikawa Botanical Garden |
December 2006 at Koishikawa Botanical Garden |