cow-wheat

It is a very ancient wood, part of the original grant of St. Magdalen College, and bears plenty of the yellow cow-wheat which Kingsley holds as the mark of primeval waste-land; but it is not exceptional in its other plants, except that a spring, half-way down, has the rare Viola palustris around it.

John Keble's Parishes Charlotte Mary Yonge 1862

Why, even the little cow-wheat, a very old - world plant, which only grows in ancient woods, has found its way back again, I know not whence, and covers the open spaces with its pretty yellow and white flowers.

Madam How and Lady Why Charles Kingsley 1847

(cow-wheat with yellow lip is in flower on the mound), there are glimpses between the bushes and the Spanish chestnut-trees of far-away blue hills -- blue under the summer sky.

The Toilers of the Field Richard Jefferies 1867