wind-pollinated

The researchers say, that in the absence of pollinators, the human diet will shift towards a preponderance of wheat, rice, oat, and corn, as these are wind-pollinated crops.

Corn is wind-pollinated, but benefits from close plants so the pollen is concentrated.

But that was about to change, with the spread and extraordinary diversification of what would eventually become some of the most ecologically and economically significant woody plants in the world: the acorn-bearing, wind-pollinated trees we call oaks.

Another difficulty is that there was no easy way to tell whether the seedlings under trial were all hybrids of the two desired species because the way hemlocks are wind-pollinated.

You can tell which flowers are wind-pollinated because they don’t waste any effort trying to look good.