Thoreau writes in his journal:
P. M.—To Fair Haven Hill.
The lycopodium which I see not yet out. The Potentilla Norvegica is common and tall, the tallest and now most flourishing of the potentillas. The xyris, some time, on Hubbard’s meadow, south of the water-plantain, whose large, finely branched, somewhat pyramidal panicle of flowers is attractive. The bobolinks are just beginning to fly in flocks, and I hear their link link . . .