Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Great Smoky Mountains National Park' has mentioned 'Fir' in the following places:
Occurrence Sentence Text Source
At higher altitudes, deciduous forests give way to coniferous trees like Fraser fir.
Non-native insects and invasive plant species threaten forest health, with potentially serious impacts on several tree species including hemlock, fir and ash.