The docks and sorrels, genus Rumex L., are a genus of about 200 species of annual, biennial, and perennial herbs in the buckwheat family Polygonaceae.
Rumex hydrolapathum Huds.
 (great water dock; water dock; giant water dock) is a species of perennial herbaceous plants in the genus "Rumex" native to fens and freshwater banks of Europe and Western Asia.
 It is the tallest species in the genus, with flowering stems attaining a height of up to 2 m .
 It is one of the small number of decaploid organisms, containing two hundred individual chromosomes.
Rumex skottsbergii, or more commonly known as lava dock, is a shrub of the genus "Rumex".
 It is endemic to Hawaii, where it is known as pawale .
 Pawale is often one of the first plants to be found on fresh lava flows and grows in extremely arid conditions.
Sporobolus is a nearly cosmopolitan genus of plants in the grass family.

Question: Are Sporobolus and Rumex both genus of plants ?
Answer: yes