Linked from
The 22 pages that link to Needle, each with the reason it gives.
EvergreenBroader topic: Needles are a familiar evergreen leaf form that limits water loss.
ClothingRelated: Eyed needles made fitted, sewn garments possible in the distant past.
SyringeRelated: A needle attached to the syringe provides a narrow route into or out of tissue.
PiceaRelated: Spruce needles attach individually to small woody projections on the twig.
LarchRelated: Larch needles grow in clusters and turn yellow before falling in autumn.
Picea glaucaRelated: Its stiff, four-sided needles are a key feature of white spruce.
Abies albaRelated: The species is identified partly by its flat, paired-row needles.
Abies grandisRelated: Grand fir's flat needles have two pale bands beneath them.
Picea engelmanniiRelated: Its sharp, four-sided needles help distinguish Engelmann spruce from firs.
Picea marianaRelated: Its short, evergreen needles retain foliage through severe boreal winters.
TsugaRelated: Tsuga needles are short and flattened, with two pale bands beneath.
Blue spruceRelated: The tree’s stiff, sharp needles are a defining identification feature.
Pinus elliottiiRelated: Its needles occur in bundles and help identify slash pine.
Pinus pinasterRelated: The tree's long needles occur in pairs and help identify it in the field.