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  2. Hardiness zone - Wikipedia

    en.wikipedia.org/wiki/Hardiness_zone

    It has been adapted by and to other countries (such as Canada) in various forms. A plant may be described as "hardy to zone 10": this means that the plant can withstand a minimum temperature of 30 to 40 °F (−1.1 to 4.4 °C). Unless otherwise specified, in American contexts "hardiness zone" or simply "zone" usually refers to the USDA scale.

  3. Ecology of California - Wikipedia

    en.wikipedia.org/wiki/Ecology_of_California

    The Sierra Nevada are home to half of the vascular plant species of California, with 400 species that are endemic to the region. [16] Like many mountain ranges, the plant communities of the Sierra group into biotic zones by altitude, because of the increasingly harsh climate as elevation increases. [19]

  4. List of California native plants - Wikipedia

    en.wikipedia.org/wiki/List_of_California_native...

    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 ).

  5. The USDA Plant Hardiness Zone Map Just Changed for the First ...

    www.aol.com/usda-plant-hardiness-zone-map...

    According to the new map released in November 2023, about half of the United States has shifted to a new hardiness zone. That's really big news if you consider 80 million Americans use this map to ...

  6. California Floristic Province - Wikipedia

    en.wikipedia.org/wiki/California_Floristic_Province

    The California Floristic Province is a world biodiversity hotspot as defined by Conservation International, due to an unusually high concentration of endemic plants: approximately 8,000 plant species in the geographic region, and over 3,400 taxa limited to the CFP proper, as well as having lost over 70% of its primary vegetation. A biodiversity ...

  7. Flora of the Sierra Nevada alpine zone - Wikipedia

    en.wikipedia.org/wiki/Flora_of_the_Sierra_Nevada...

    Alpine plants often have gray appearance from hairs covering the leaves, which reflect the intense sunlight, and protect from winds that cause high rates of water loss through transpiration. [4]: 224 Many Sierra Nevada alpine plants have reddish or whitish leaves to protect them from damage from intense ultraviolet radiation in the alpine zone.