Hello, as the name implies, Ophiopogon dwarf and Ophiopogon dwarf are the same plant. The commonly used varieties of Ophiopogon japonicus mainly include Ophiopogon japonicus, Ophiopogon japonicus, Ophiopogon japonicus and Ophiopogon dwarf. You should be talking about the same kind.
Ophiopogon japonicus is an evergreen perennial herb, a kind of Artemisia, which is planted in most areas.