- horse chestnut, buckeye, Aesculus hippocastanum - tree having palmate leaves and large clusters of white to red flowers followed by brown shiny inedible seeds
--1 is a kind of angiospermous tree, flowering tree
--1 is a member of Aesculus, genus Aesculus
--1 has particulars:sweet buckeye; Ohio buckeye; dwarf buckeye, bottlebrush buckeye; red buckeye; particolored buckeye - buckeye, horse chestnut, conker - the inedible nutlike seed of the horse chestnut
--2 is a kind of seed