Pinus sylvestris can be
recognized by the short needles in fascicles of 2 and the
The needles are often less than 6 cm long and may be strongly
twisted. They tend to be both longer and more bluish in
color than P. banksiana.
Pinus sylvestris is Eurasian
in origin, widely planted in residential areas in North
America and sometimes escaping. It is known outside of cultivation
from scattered locations throughout Wisconsin. It does not
appear to be a serious pest species and in my experience
escapes mostly to disturbed ground near plantings. It is
more widely distributed than is indicated by the distribution
map based on vouchers.