There is an image of this cultivar on the Hosta Library. From the photo on the HL website, it appears to be a small size hosta with dark green leaves and yellow medial (center) and streaked variegation. This non-registered cultivar was originated by Jim Westberg of Minnesota.

Marshall Matthew (Matt) Dillon was the key character on the TV western series Gunsmoke. He was played by James Arness.