Cryptogramma stelleri, common names slender cliff-brake, fragile rock-brake, slender rock-brake, and Steller's rockbrake, is a plant found widely in temperate regions of Asia and North America. It is a lithophyte, growing on rocky substrates.
It is listed as endangered in Connecticut,"Connecticut's Endangered, Threatened and Special Concern Species 2015". State of Connecticut Department of Energy and Environmental Protection Bureau of Natural Resources. Retrieved 17 January 2018. (Note: This list is newer than the one used by plants.usda.gov and is more up-to-date.) Massachusetts, New Jersey, and Pennsylvania. It is listed as threatened in Maine and New Hampshire, as exploitably vulnerable in New York (state) and as sensitive in Washington (state).
Cryptogramma stelleri is known to be able to use artificial light to grow in places which are otherwise devoid of natural light, such as Crystal Cave in Wisconsin.
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