Why do some pine trees have pine cones but not pine nuts?

Fall naturally and fly away with the wind.

1. Natural fall: After the cones of pine plants mature, the seed scales are lignified and persist. The pine cones look like seed scales. The seed scales of cedar cones fall off after they mature. , the seed scales fall off after maturity.

2. Fly away with the wind: The pine nuts sold in the domestic market basically come from Korean pine and Huashan pine. While most rely on wind to disperse their seeds, the pine nuts of Korean pine and Huashan pine are usually small and winged, with mature seed scales opening in dry weather to release mini pine nuts. The pine cones in the pine cones have long since flown away with the wind in suitable weather, so the pine trees have pine cones but not pine cones.