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. type by the total number of points taken (50). First hit relative vegetation cover was calculated by dividing first hit absolute cover for each species by the total first hit vegetation cover. All-layer absolute cover (COVER-ALL column in data tables) was calculated by dividing all hits (first-hits and additional-hits) for particular species by the total number of points taken (50). In addition, all- Iayerrelative cover was calculated using all hits for particular species divided by the total hits accumulated during sampling of the transect. Herbaceous Production Sampling Herbaceous production sampling was accomplished using one-half square meter (0.5 mZ) circular plots within which all herbaceous growth in a vertical projection was removed by clipping, and placed in labeled paper bags. When alfalfa (Medicago sativa) occurred, it was placed in separate, labeled bags. Lichens and mosses present in the sample plot were not collected. Clipped material was returned to the ESCO laboratory and dried at 105 °C for 24 hours, then weighed to the nearest 0.1 gm. Woody Plant Density Sampling Woody plant density sampling was undertaken in all reclaimed areas sampled but did not occur in the reference areas. Woody plant density samples were collected along 50 m transects. All • shrubs and subshrubs with root crowns located within the boundaries of 2 X 50 m quadrats ("belt transects") were tallied according to species and life stages as follows: Seedling, Mature, or Dead. The presence of dead individuals was recorded but did not contribute to woody plant density calculations. Lifeforms Used in Data Presentation As a tool to enhance understanding of the collected data, the contents of all the data and summary tables are organized by lifeform. Lifeform categories used here reflect growth habit and provenance (place of origin). Lifeform categories used include the following: native annual and biennial forbs, introduced annual and biennial forbs, native annual grasses, introduced annual grasses, native perennial forbs, introduced perennial forbs, native perennial graminoids (includes grasses and grass-like plants), introduced perennial graminoids, native shrubs, native trees, ferns, bryophytes (moss), and lichens. Plant Species Frequency and Density Measurements During the course of cover sampling, all plant species occurring within one meter on either side of the cover sample transect were noted as present within each sample. Frequency for each plant species observed during sampling was calculated by dividing the number of sample transects in . which the species was observed by the total number of samples (see cover sample distribution by area above). As such, this value is probably more correctly known as "constancy". 2