Part of Speech: Noun
In more advanced contexts, arrowleaf groundsel can be discussed in relation to its ecological role, such as its importance to local wildlife or its adaptations to mountainous environments.
"Groundsel" by itself can refer to various plants in the genus Senecio, which includes many species with different characteristics.
While "arrowleaf groundsel" is quite specific, you might find other plants referred to as "groundsel" in different contexts, although they may not look like arrowleaf groundsel.
There are no common idioms or phrasal verbs directly associated with "arrowleaf groundsel," as it is a specific botanical term.
In summary, "arrowleaf groundsel" is a specific perennial plant with triangle-shaped leaves and yellow flowers found in moist mountain areas of western North America.