![]() ![]() | |||||
|
Pinus rigida
Common Name: |
Collection Number: 368 Entry Author: Jeff Chichester Description: Medium sized often misshaped tree that varies in form, although a tall columnar bole and open crown are produced when favorable conditions prevail. Needles: 3 to 5 in. length, yellow-green color, in bundles of three. Cones: 2 to 3.5 in. length, ovoid shape, each scale ends in a sharp thorn. Cones need two seasons to mature. Bark: Dark and scaly on young trees, brownish yellow fissured appearance as tree matures. Tufts of needles growing from bark is a characteristic of this species. Height: 50 to 60 ft. Life Span: By the age of ninety growth in height ceases, maximum age can reach 200 years. Conditions/Habitat/Kind of Forest: Found on typically poor, dry, sandy soil that is often too sterile for most other trees, usually found in the company of gray birch, and scrub oak. Range: Eastern North America from southern New Brunswick, Canada, ranging south to northern Georgia in United States. Ecological Interactions: Cones open and disperse seeds at irregular intervals thus allowing winter foraging of seeds by small mammals and birds. Uses (Human): Seedlings are widely produced for reforestation. In early colonial times it was used to produce tar, and turpentine. References: Harlow, W., Harrar, E., White, F., (1979). Textbook of Dendrology. New York: McGraw Hill Harlow, W. (1942). Trees of the Eastern and CentralUnited States and Canada. New York: Dover Publications Inc.
| |||
|
|
|||||
|
| |||||
This page was created by: K. Rice,
Muhlenberg College student, and J. Chichester, Northampton Community College
For questions or concerns regarding the Graver Web site, contact lrosen@muhlenberg.edu
Last updated 03/15/05