Crossword Genius

Sources of cones (5)

Ross

I believe the answer is:

pines

(Other definitions for pines that I've seen before include "Longs for evergreen trees" , "Longs for or languishes" , "Coniferous trees" , "Yearns for evergreen trees?" , "Yearns for the conifers" .)

I've seen this clue in the USA Today.
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