''Nihon'' is a genus of

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (). The term angiosperm is derived from the Ancient Greek, Greek words (; 'container, vessel') and (; 'seed'), meaning that the seeds are enclosed with ...

s in the family

Boraginaceae Boraginaceae, the Borago, borage or forget-me-not family, includes about 2,000 species of shrubs, trees, and herbs in 146 to 154 genus, genera with a worldwide distribution. The APG IV system from 2016 classifies the Boraginaceae as single famil ...

. It includes five species native to

Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

(5 species) and

Korea Korea is a peninsular region in East Asia consisting of the Korean Peninsula, Jeju Island, and smaller islands. Since the end of World War II in 1945, it has been politically Division of Korea, divided at or near the 38th parallel north, 3 ...

(1 species). *''

Nihon akiensis Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea ...

'' – Japan (Honshu) *'' Nihon japonicum'' – central and southern Japan *'' Nihon krameri'' – southern Korea and Japan (southern Hokkaido and northern and central Honshu) *'' Nihon laevispermum'' – Japan (central Honshu) *'' Nihon proliferum'' – Japan (western and central Honshu) The species in the genus were previously placed in genus '' Omphalodes''. A 2014 phylogenetic study concluded that these five formed a distinct lineage. The new genus was given the name ''Nihon'', the

Japanese Japanese may refer to: * Something from or related to Japan, an island country in East Asia * Japanese language, spoken mainly in Japan * Japanese people, the ethnic group that identifies with Japan through ancestry or culture ** Japanese diaspor ...

name for Japan.Otero, Ana & Jiménez-Mejías, Pedro & Valcárcel, Virginia & Vargas, Pablo. (2014). Molecular phylogenetics and morphology support two new genera (''Memoremea'' and ''Nihon'') of Boraginaceae s.s. ''Phytotaxa''. 173. 241–277. 10.11646/phytotaxa.173.4.1.

References

{{Taxonbar, from=Q42933620 Boraginaceae Boraginaceae genera