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Isopentane, also called methylbutane or 2-methylbutane, is a branched-chain saturated hydrocarbon (an alkane) with five carbon atoms, with formula C 5 H 12 or CH(CH 3) 2 (C 2 H 5). Isopentane is a volatile and flammable liquid.
This list of birds of Pennsylvania includes species documented in the U.S. state of Pennsylvania and accepted by the Pennsylvania Ornithological Records Committee (PORC). As of May 2021, there were 439 species on the official list. [ 1 ]
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.
All of the plants Lewis collected in the first months of the Expedition were cached near the Missouri River to be retrieved on the return journey. The cache was completely destroyed by Missouri flood waters. Other collections were lost in varying ways, and we now have only 237 plants Lewis collected, 226 of which are in the Philadelphia ...
Common names include birdeye speedwell, [2] common field-speedwell, [3] Persian speedwell, large field speedwell, bird's-eye, or winter speedwell. It is native to Eurasia and is widespread as an introduced species in the British Isles (where it was first recorded in 1825 [ 4 ] ), North America, eastern Asia , including Japan and China , and ...
Gamochaeta pensylvanica, the Pennsylvania cudweed [2] [3] or Pennsylvania everlasting, [4] is a widespread species of flowering plant in the family Asteraceae.It is native to South America and introduced into Eurasia, Africa, Australia, and North America.
Smilax rotundifolia, also known as roundleaf greenbrier [2] or common greenbrier, is a woody vine native to the southeastern and eastern United States and eastern Canada. [1] [3] [4] It is a common and conspicuous part of the natural forest ecosystems in much of its native range.
Rubus pensilvanicus, known commonly as Pennsylvania blackberry, is a prickly bramble native to eastern and central North America from Newfoundland south to Georgia, west as far as Ontario, Minnesota, Nebraska, Missouri, and Arkansas. The species is also established as a naturalized plant in California. [2] [3]