Hip \Hip\, n. [OE. hepe, AS. he['o]pe; cf. OHG. hiufo a bramble bush.]

(Bot.) The fruit of a rosebush, especially of the English dog-rose (Rosa canina); called also rose hip. [Written also hop, hep.]

[1913 Webster]

Hip tree (Bot.), the dog-rose. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

Rosa canina

Source: WordNet (r) 2.0
 

Hip \Hip\, n. [OE. hepe, AS. he['o]pe; cf. OHG. hiufo a bramble bush.]

(Bot.) The fruit of a rosebush, especially of the English dog-rose (Rosa canina). [Written also hop, hep.]

Hip tree (Bot.), the dog-rose.

Source: Webster's Revised Unabridged Dictionary (1913)