is a botanist formerly at the University of Tokyo

University of Tokyo

, abbreviated as , is a major research university located in Tokyo, Japan. The University has 10 faculties with a total of around 30,000 students, 2,100 of whom are foreign. Its five campuses are in Hongō, Komaba, Kashiwa, Shirokane and Nakano. It is considered to be the most prestigious university...

 and Tohoku University

Tohoku University

, abbreviated to , located in the city of Sendai, Miyagi Prefecture in the Tōhoku Region, Japan, is a Japanese national university. It is the third oldest Imperial University in Japan and is a member of the National Seven Universities...

. He began publishing on Japanese Arisaema

Arisaema

Arisaema is a genus of about 150 species in the flowering plant family Araceae, native to eastern and central Africa, Asia and eastern North America. Its species are often called Cobra lilies, particularly the Asiatic species...

in the early 1960s. He published a couple of miscellaneous notes on Arisaema in 1963 and 1964 and these were followed by a revision of the genus for Japan jointly published in 1980 with J. Murata, and by the Araceae

Araceae

Araceae are a family of monocotyledonous flowering plants in which flowers are borne on a type of inflorescence called a spadix. The spadix is usually accompanied by, and sometimes partially enclosed in, a spathe or leaf-like bract. Also known as the Arum family, members are often colloquially...

treatment for the Wildflowers of Japan (Ohashi, 1982).

He continued the work of the noted botantist Hara on the Flora of Eastern Himalaya. He has also compiled a list of types of Arisaema in Japanese herbaria and studied pollen morphology of
Japanese Arisaema (Ohashi et al., 1983).

Publications

• A proposal of Japanese names of cotyledon areoles and seed-coat inside areoles of legume seeds, Yasuhiko Endo, Hiroyoshi Ohashi, The Journal of Japanese Botany, 85, 2, , , 2010/04
• Diversification of seed arrangement induced by ovule rotation and septum formation in Leguminosae, Yasuhiko Endo and Hiroyoshi Ohashi, Journal of Plant Research, 122, 5, 541-550, , 2009/09
• Phylogenetic Relationships of New World Vicia (Leguminosae) Inferred from nrDNA Internal Transcribed Spacer Sequences and Floral Characters, Yasuhiko Endo, Byoung-Hee Choi, Hiroyoshi Ohashi, Alfonso Delgado-Salinas, Systematic Botany, 33, 2, 356-363, , 2008/05
• Phylogenetic significance of stylar features in genus Vicia (Leguminosae): an analysis with molecular phylogeny, Byoung-Hee Choi, Dong-Im Seok, Yasuhiko Endo, Hiroyoshi Ohashi, Journal of Plant Research, 119, , 449-457, , 2006/09
• A trifoliolate form of Vicia unijuga A. Br. (Leguminosae), Endo, Y. and Ohashi, H., The Journal of Japanese Botany, 80, , 306-307, , 2005/10
• A New species of Indigofera (Leguminosae) in Luzon Isl. of the Philippines, Yasuhiko Endo, Hiroyoshi Ohashi, and Domingo A. Madulid, The Journal of Japanese Botany, 80, , 261-265, , 2005/10
• Electrophoretic patterns of seed proteins in the East Asian Vicia species (Leguminosae) and their systematic utility, Elena Potokina, Yasuhiko Endo, Elly Eggi and Hiroyoshi Ohashi, The Journal of Japanese Botany, 78, , 29-37, , 2003/02
• Ohashi, H. 1963. Notes on Arisaema robustum (Engl.) Nakai, a species of the Araceae in Japan. Sci. Rep. Tohuku Univ., ser. 4, Biol. 29: 431-435.
• _________. 1964. A note on Arisaema monophyllum var. akitense. J. Jap. Bot. 39: 19-23.
• _________. 1981a. List of type specimens in the herbaria of Japan - Ariseama. Herbarium, Dept. of Botany, Fac. Sci, Kyoto, Univ., Japan.
• _________. 1981b. Catalogue of the type specimens preserved in the Herbarium of Department of Botany in the University Museum, University of Tokyo. Part 1. Araceae. University Museum, The University of Tokyo Material Report No. 5: 1-27, pl. 1-63.
• __________. 1982. Araceae. Pp. 127-139. In: Satake et al. (eds.), Wild Flowers of Japan. Herbaceous Plants--Monocotyledoneae. Heibonsha, Tokyo.
• ___________ & J. Murata. 1980. Taxonomy of the Japanese Arisaema. J. Fac. Sci. Univ. Tokyo, sec. 3, Bot. 12: 281-336.
• ____________, J. Murata, & M. Takahashi. 1983. Pollen morphology of the Japanese Arisaema. Sci. Rep. Tôhoku Imp. Univ., Ser. 4, Biol. 38: 219-251.