1、 Root difference

Asparagus is a climbing plant. The middle or end of the root is very swollen and spindle shaped. The root of Ophiopogon japonicus is thicker, with small oval or spindle shaped roots in the middle or end

2、 Stem difference

The stem of asparagus is smooth and long. It is often curved or twisted, up to 1-2 meters long, with mausoleum or narrow wings on its branches. The stem of Ophiopogon japonicus is very short, and there is a membranous sheath on the node

3、 The difference between petals

The flowers of asparagus are usually axillary and light green in color. The flowers of Ophiopogon japonicus are solitary or paired in the axils of bracts, and the color of petals is white or lavender