Question: Are Agrostis and Disanthus both genus of plants?

Context paragraphs:
Lachnagrostis: Lachnagrostis is a genus of African, Australian, Pacific Island, and South American plants in the grass family.  They are often treated as members of genus "Agrostis".

Disanthus: Disanthus is a genus containing two species of flowering plants in the family Hamamelidaceae.  The type species, "Disanthus cercidifolius", was the only known species until 2017, when a second species, "Disanthus ovatifolius" was described.

Agrostis: Agrostis (bent or bentgrass) is a large and very nearly cosmopolitan genus of plants in the grass family, found in nearly all the countries in the world.  It has been bred as a GMO creeping bent grass.

Supporting paragraphs: Agrostis Disanthus
Answer: yes