After exogenous MJA treatment, the variation of the terpene volatiles in the conelet and cone were the same as the infested conelcets and cones, but the varying extents were not very high.
Its distinguishing features are cones that stand upright and whose scales come off with the seeds attached, rather than opening to let the seeds fall out.
Known technically as gymnosperms, they have needle-like leaves which are almost always evergreen and reproduce through exposed seeds nestled within cones.