Definition: "Northern bedstraw" is a noun that refers to a type of plant that grows in North America. It is a perennial, which means it can live for more than two years. This plant has long, thin stems and often produces small, white flowers. The name "bedstraw" suggests that it has been historically used for making mattresses or bedding because of its soft, fibrous stems.
While "northern bedstraw" primarily refers to the specific plant, the word "bedstraw" can refer to various species of plants in the same family that may not be northern bedstraw specifically.
There aren't specific idioms or phrasal verbs that include "northern bedstraw," but you might hear "to bed down" (to prepare a place for sleeping) in contexts about using plants like bedstraw historically for bedding.
"Northern bedstraw" is a unique plant that is appreciated for its beauty and utility.