We found 2 dictionaries that define the word mountain hemlocks:

General (2 matching dictionaries)

1. mountain hemlocks: Merriam-Webster
2. mountain hemlocks: Vocabulary.com

(Note: See mountain_hemlock as well.)

Definitions from Wiktionary (mountain hemlock) ▸ noun:  Tsuga mertensiana, a North American hemlock. ▸ Also see mountain_hemlock ▸ Words similar to mountain hemlocks ▸ Usage examples for mountain hemlocks ▸ Idioms related to mountain hemlocks ▸ Wikipedia articles (New!) ▸ Words that often appear near mountain hemlocks ▸ Rhymes of mountain hemlocks ▸ Invented words related to mountain hemlocks