in Thoreau’s Journal:
These are the clear breezy days of early June, when the leaves are young and few and the sorrel not yet in its prime. Perceive the meadow fragrance. The roads are strewn with red maple seed. The pine shoots have grown generally from three to six inches, and begin to make a distant impression, even at some distance, of white and brown above their dark green.
The foliage of deciduous trees is still rather yellow-green than green.