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Of California's total plant population, 2,153 species, subspecies, and varieties are endemic and native to California alone, according to the 1993 Jepson Manual study. [4] This botanical diversity stems not only from the size of the state, but also its diverse topographies , climates, and soils (e.g. serpentine outcrops ).
The coast of California north of San Francisco contains the Northern California coastal forests (as defined by the WWF) and the southern section of the Coast Range ecoregion (as defined by the EPA). This ecoregion is dominated by redwood forest , containing the tallest and some of the oldest trees in the world.
The Laguna, whose principal tributary streams rise on the southern slopes of the Sonoma and Mayacamas Mountains, [4] is the largest tributary of Mark West Creek.The sinuous watercourse and associated wetlands form a significant floodplain during the heavy winter rains, capable of storing over 80,000 acre-feet (99,000,000 m 3) of stormwater.
The California Central Valley grasslands ecoregion, as well as the coniferous Sierra Nevada forests, Northern California coastal forests, and Klamath-Siskiyou forests of northern California and southwestern Oregon, share many plant and animal affinities with the California chaparral and woodlands.
Sphagnum is a genus of moss that is found primarily in the Northern Hemisphere, as well as in some areas of South America, New Zealand and Tasmania. Sphagnum moss is notable because it forms peat. Sporobolus, cordgrasses. Typha, known as cattails or bulrushes, are found throughout the world and a characteristic plant of wetland environments.
It encompasses over 7,000 acres (28 km 2) of riparian woodlands, wetlands and grasslands that host a diversity of wildlife native to California's Central Valley. The refuge is situated where three major rivers, the San Joaquin , Tuolumne and Stanislaus Rivers , join providing key wildlife corridor habitat.
California's coastal salt marsh is a wetland plant community that occurs sporadically along the Pacific Coast from Humboldt Bay to San Diego. This salt marsh type is found in bays, harbors, inlets, and other protected areas subject to tidal flooding .
The ecoregion covers 13,300 square kilometres (5,100 sq mi), extending from just north of the California-Oregon border south, to southern Monterey County.The ecoregion rarely extends more than 65 km inland from the coast, narrower in the southernmost parts of the ecoregion.