Clocks and Screwballs

Clocks noun - European weed naturalized in southwestern United States and Mexico having reddish decumbent stems with small fernlike leaves and small deep reddish-lavender flowers followed by slender fruits that stick straight up; often grown for forage.

Screwballs and clocks are semantically related. In some cases you can use "Screwballs" instead an adjective "Clocks".

Clocks and screwballs are semantically related. Sometimes you can use "Clocks" instead an adjective "Screwballs".