Flora Reference Libraries

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Ponderosa Pine Pinus ponderosa
2014-05-16 11:05:52

Ponderosa pine (Pinus ponderosa) is native to western North America in sixteen states as well as southern British Columbia, Canada. This tree is also known as the bull pine, blackjack pine, or western pitch, red and yellow pine, as well as Yosemite pine. The Ponderosa pine grows at sea level up to 9843 feet above sea level and can live 300-600 years. This pine is one of the largest pine...

Pond Pine Pinus serotina
2014-05-16 10:40:26

Pond Pine (Pinus serotina) grows in the United States along the Atlantic coast from southern New Jersey south to Florida then west to southern Alabama. This pine grows in wet ground near ponds, and swamps and is also known as the marsh pine or pocosin pine. The pond pine is a small tree growing to heights of 82 feet with a trunk diameter of 2.6 feet. The tree tends to grow crooked and has...

Pitch Pine Pinus rigida
2014-05-16 10:12:06

Pitch pine (Pinus rigida) is native to the northeastern United States from Maine to northern Georgia and west to Ohio and Kentucky with a few found in Quebec and Ontario, Canada. This pine can be found growing in coastal areas as it is somewhat salt resistant. The Pitch pine grows from sea level up to 8038 feet above sea level. This tree grows in all types of soil from acidic sandy soils to...

Ocote Pine Pinus oocarpa
2014-05-16 09:55:29

Ocote pine (Pinus oocarpa) is native to Mexico and Central America. This tree is also known as the Mexican yellow pine, hazelnut pine, pino Amarillo, and pino avellano. This pine is closely related to the pinus greggii and pinus patula. This pine grows at altitudes of 3000-7000 feet above sea level while in El Salvador, Honduras and Nicaragua it grows at lower altitudes of 2600 feet. In poor...

Michoacan Pine Pinus devoniana
2014-04-27 08:19:00

Michoacan Pine (Pinus devoniana) is found in Mexico from S. Sinaloa to Chiapas and Guatemala in the montane forest, which is one level below the subalpine zone found around the globe.  The temperature within the montane is between 43 and 54 degrees Fahrenheit. The location of the Michoacan pine will change with the climate change and grow in the warmer regions. Michoacan pine grows at...

Lodgepole Pine Pinus contorta
2014-04-27 08:06:16

Lodgepole pine (Pinus contorta) is found in western North America in the upper mountains and subalpine regions of Colorado’s northern Rocky Mountains. This tree is considered to be invasive in New Zealand. This tree is also known as the shore pine, twisted pine, and contorta pine as well as black pine, scrub pine, and coast pine. The Lodgepole pine grows best between 8000 and 10,000 feet...

Jeffrey Pine Pinus jeffreyi
2014-04-27 07:31:31

Jeffrey pine (Pinus jeffreyi) grows in California, Nevada, and Oregon. This tree is named after botanist document, John Jeffrey. This tree is also known as the black pine. The Jeffrey pine is often confused with the Ponderosa pine. Jeffrey pine grows in high altitudes of 4900-6900 feet in the northern part of its region and 5900-9500 feet in the southern range. The trees grow primarily from...

Jack Pine Pinus banksiana
2014-04-27 07:07:32

Jack pine (Pinus banksiana) has a native range in Canada, east of the Rocky Mountains to Nova Scotia. Jack pine can also be found in the United States from Minnesota to Maine with northwest Indiana and northwest Pennsylvania being the furthest south in the growing range. The Jack pine is a short pine growing to heights of 30-72 feet. The trees will grow crooked much like the pitch pine...

Hartwegs Pine Pinus hartwegii
2014-04-22 13:27:36

Hartweg’s pine (Pinus hartwegii) is found growing in the mountains of  Mexico and Central America east to Honduras. This tree was discovered and named in 1838 by Karl Hartweg. The Hartweg’s pine is related to the Pinus Montezuma species which has shorter needles, as well as smaller cones and grows at lower altitudes. The Hartweg Pine grows at altitudes of 8200-14100 feet above sea level...

Greggs Pine Pinus greggii
2014-04-22 13:05:16

Gregg’s pine (Pinus greggii) is native to eastern Mexico. The name is derived from a merchant, explorer, naturalist, and author of the American Southwest and Northern Mexico, Josiah Gregg (1806-1850). This pine is closely related to the Patula pine with the difference being in the length of the needles and the bark of the tree. The Gregg’s pine grows at altitudes between 4265 – 8530...

Word of the Day
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.