She was a nut case.

Only half are black and half nut cases.

And when he came to the nut trees, and saw the shells left by the idle fairies and all the traces of their frolic, he knew exactly how they had acted, and that they had disobeyed him by playing and loitering on their way through the woods.

The green and angular fruit or "nut" ripens in October; it is about 4 in.

Monoecious, and bearing their male flowers in catkins, they are readily distinguished from the rest of the catkin-bearing trees by their peculiar fruit, an acorn or nut, enclosed at the base in a woody cup, formed by the consolidation of numerous involucral bracts developed beneath the fertile flower, simultaneously with a cup-like expansion of the thalamus, to which the bracteal scales are more or less adherent.