hardpan Definition

caliche, clay, fescue grass, bermuda grass, hummock, sidehill, sphagnum, sandy, rills, arundo, spatterdock, knolls, talus, marram grass, bottomland, hogback, hilling, kikuyu, swale, streambed, soils, rutty, stolons, tableland, tussocks, roadbeds, metamorphic rock, sapodilla tree, loamy, tufa, coquina, swales, ruts, bunchgrass, slope, ridges, fescue, posthole, rimrock, topsoil, popple, sumacs, escarpments, mounding, quack grass, clayey, greasewood, dirt, crenellations, bristlecone, semidesert, muskeg, outwash, bramble, blackberry bush, pampas grass, colluvium, mossy, sprigging, zoysia, cholla, rockeries, riparian forest, discing, aerification, sand, scrublands, arroyos, frost heave, downslope, moldboard plow, sawgrass, creeping thyme, grass, scrub brush, bermuda, ironwood tree, ocotillo, buttonbush, creek bed, rooty, loess, slickrock, blacktops, buffel grass, cottonwood, dune, divot, windrow, moss, gravel, scree, paloverde, moorlands, liquidambar, hollows, dolerite, scotch thistle, lyme grass, maidenhair,