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34 52.299 N, 112 6.838 W; 3580ft, 1090m elevation. In floodplain of Verde River near the town of Sycamore, 0.5 mi SE of Government Cyn, ca. 2 mi upstream from confluence with Sycamore cyn. Growing on shady part of floodplain in sandy loam with Platanus wrightii, Salix goodingii, Brickellia floribunda, Verbascum thapsus, Astragalus lentiginosus, Astragalus tephrodes, Polygala alba, Layia glandulosa, Bromus rubens, Gutierrezia sarothrae, Erodium cicutarium, Maursndella antirrhiniflora, Sporobolus cryptandrus, Datura wrightii, Erysimum, Oenothera caespitosa, Cryptantha pterocarya, Gaillardia pinnatifida, Melampodium leucanthum, Phaseolus angustissimus, Hordeum, Chamaesarcha coronopus, Packera multilobata, Lotus humistratus, Plagiobothrys arizonicus, Pectrocarya setosa, Silene antirrhina, Lupinus brevicaulis, Lupinus coccinnus, Lotus humistrasus, Bromus tectorum, Mentzelia albicaulis, Phacelia bombycina, Lithospermum multiflorum, Cryptantha gracilis, Cryptantha barbigera, Astragalus nuttalianus, Amsonia palmeri, Penstemon eatonii.