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6.4.10 Exhibit J -Vegetation Information <br />Existing Vegetation Types <br />Two vegetation types, shortgrass prairie and wetland are present within the <br />proposed permit boundary. The vegetation on the site was characterized by <br />ERO Resources (2000a). Wetlands occupy 7.7 acres within the permit area <br />(See Exhibit C). One wetland is a stand of cattails (Typha latifolia). The other <br />wetlands are dominated by a variety of graminoids and forbs with a few shrubs <br />being present. Typical graminoids present in the wetlands include foxtail barley <br />(Hordeum jubatum), saltgrass (Distichlis spicata), Baltic rush (Juncus balticus), <br />reed canarygrass (Phalaris arundinacea) and threesquare bulrush (Scirpus <br />americanus). Forbs present in the wetlands include poison hemlock (Conium <br />maculatum), prickly lettuce (Lactuca serriola), teasle (Dipsacus sylvestris), <br />Canada thistle (Cirsium arvense), and cocklebur (Xanthium strumarium). Shrubs <br />present in the wetlands include sandbar willow (Salix exigua) and wild licorice <br />(Glycorrhiza lepidota) (ERO Resources, 2000a). <br />The shortgrass prairie uplands contain a number of native and introduced <br />grasses and forbs including blue grams (t3outeloua gracilis), western wheatgrass <br />(Pascopyrum smithii), crested wheatgrass (Agropyron cristatum), smooth brome <br />(Bromopsis inermis), kochia (t3assia sieversiana), sweet clover (Melilotus <br />occicinale), curly doc (Rumex crispus), and diffuse knapweed (Acosta diffusac) <br />(ERO Resources, 2000a). <br />There are a number of trees scattered throughout the permit area. Most are near <br />the wetlands. These include plains cottonwood (Populus deltoides), Russian <br />olive (Elaeagnus angustifolia), and peach leaf willow (Salix amygdaloides). <br />Several of the cottonwoods are over 20 inches diameter breast height. Most of <br />the other trees are less than 20 feet high. <br />Productivity <br />The following table 1 presents the potential primary productivity within the permit <br />area based on native vegetation that occurs on the soil types present. See <br />Exhibit C for a map of soils within the permit area. <br />Turnpike Mining Resource <br />Regular 112 application <br />