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Dudleya – a native species of the Santa Monica Mountains.

As some areas within the preserve have been degraded in the past, MRT has had many restoration projects there. MRT’s on-going restoration projects includes riparian and wetland enhancement by removing invasive non-native plant species to encourage the re-establishment and spread of native plant species. The primary invasive non-native plant species include yellow star thistle (Centaurea solstitialis), curly dock (Rumex crispus), plantains (Plantago lanceolata and P. major), spearmint (Mentha spicata) and a host of other annual and perennial invasive species. One restoration project includes improving habitat for the Lyon’s pentachaeta (Pentachaeta lyonii ), a Federally endangered species. In addition to removing non-native plants and planting natives at La Sierra PReserve, MRT is also working to remove a culvert, an asphalt driveway and retaining wall, and to restore a vernal pool.