misidentified it as Pinus resinosa (red pine). In 1829, Douglas concluded that he had a new pine among his specimens and coined the name Pinus ponderosa for its heavy...

variability may be a sign of hybridization with the closely related ponderosa pine (Pinus ponderosa). The cones are single, paired, or in whorls of three, and...

a large (15 to 25 mm (5⁄8 to 1 in)) wing. Pinus jeffreyi is closely related to Pinus ponderosa (ponderosa pine) and is similar in appearance. One way...

or variety of Pinus ponderosa. Other sources list it as a synonym of Pinus ponderosa var. ponderosa (or Pinus ponderosa subsp. ponderosa), with no recollection...

Pinus, the pines, is a genus of approximately 111 extant tree and shrub species. The genus is currently split into two subgenera: subgenus Pinus (hard...

The Willamette Valley ponderosa pine is a population of the ponderosa pine (Pinus ponderosa) native to the Willamette Valley in Oregon. It is adapted...

pinyon pine (Pinus edulis), sugar pine (Pinus lambertiana), incense-cedar (Calocedrus decurrens), western larch, Jeffrey pine (Pinus jeffreyi), and...

lodgepole pine (Pinus contorta), with two needles per fascicle, as well as the ponderosa pine (Pinus ponderosa) and Jeffrey pine (Pinus jeffreyi), which...

scientific research completed". "Tsuga heterophylla". Gymnosperm Database. "Pinus ponderosa subsp. benthamiana". Gymnosperm Database. Hemp, Andreas (2016). "Africa's...

to: Pinus palustris, longleaf pine Pinus echinata, shortleaf pine Pinus elliottii, slash pine Pinus jeffreyi, Jeffrey pine Pinus ponderosa, ponderosa pine...