Assertion: birch's habitat | /r/HasProperty | isolated
Facets:
value: from each other
type: OTHER
Source sentences:
text: This species is known to hybridize with B. pumila, producing plants known as B. x sargentii Dugle but this hybrid is not known to occur in New York probably because the two species grow in different habitats and locations that are isolated from each other (Furlow and Mitchell 1990).