["HERBARIUM\nOF\nYALE UNIVERSITY", "Yale University Herbarium", "YU.054306", "Kansas Plants", "Isoetes butleri Engelm.", "Montgomery County, Kansas\nMontgomery County State Lake\nT33S, R16E, S19, ne 1/2, south side of lake\nin shallow sandy soil along margin of\nbarren surfacing rock, soil wet from\nseepage, locally common", "19 April 1982", "Ralph Brooks 15831 & R. L. McGregor\nThe University of Kansas Lawrence, Kansas", "0 1 2 3 4 5 6 7 8 9 10\n\n[Scale lines] [0] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [cm] [mm] [mm] [mm] [mm] [mm