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This page alphabetically lists some known plant species occurring in the US state of Pennsylvania. Currently about 2,100 native and 1,300 non-native plant species are known in Pennsylvania. [1] According Pennsylvania Department of Conservation and Natural Resources, the known species make up 37% of Pennsylvania's total wild plant flora.
This list of botanical gardens and arboretums in Pennsylvania is intended to include all significant botanical gardens and arboretums in the U.S. state of Pennsylvania. [ 1 ] [ 2 ] [ 3 ] Name
This category contains the native flora of Pennsylvania as defined by the World Geographical Scheme for Recording Plant Distributions.Taxa of the lowest rank are always included; taxa of higher ranks (e.g. genus) are only included if monotypic or endemic.
The Pennsylvania Department of Conservation and Natural Resources ranks invasive species into 3 categories based on urgency of threat. [ 4 ] Terrestrial Plants and Trees
Rapidly growing trees soak up carbon, add much oxygen to the atmosphere, and protect soil. Taller trees shade streams, helping to regulate water temperature for aquatic life. By the 1940s, the forest began to take on an appearance familiar to us today. The older trees provide acorns, cherries, and beech nuts for bear and turkey.
Crataegus pennsylvanica, known as the Pennsylvania thorn, [2] is a species of hawthorn native to Delaware, New York, North Carolina, Ontario, Ohio, and Pennsylvania, [2] that grows to about 8 m in height. [2] The mature trees have few thorns. [2]