This sport of the species H. rectifolia is a vase-shaped, medium size hosta about 16 inches high by 14 inches wide. It has dark green foliage that has petioles that are red spotted. The flowers are purple with stripes and bloom in August followed by viable seeds.

Mikiko Lockwood in an article on The Hosta Library titled, A Little About Japanese Hosta Terms defines the term maruba as round leaf or round-leafed and the term tachi as upright, 'Tachi Gibōshi' or H. rectifolia.

One source says that this is the same as H. rectifolia var. australis.