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Bryce Canyon National Park
Pinyon Pine
Common Name (preferred): Pinyon Pine
Scientific Name: Pinus edulis
Size (height & diameter) English & Metric: 15-35 ft (4.6-10.7 m) tall, 12-24 inches; (.3-.6 m) in diameter
Habitat: Dry open land 5000-7000 ft (1500-2100 m) above sea level
Flowering Season: N/A not a flowering plant
Range: Colorado Plateau
 
Pinyon Pine

nps photo

Pinyon Pine

General Description:
The Pinyon Pine with its crooked trunk and red-brown bark, is found in dry, rocky places at elevations of 5,000-7,000 ft. Growing where yearly precipitation is only 10-20 inches per year, they depend on their enormous root system to harvest enough water to survive. This root system is at least as large as the above- ground part of the tree. Tap roots stretch down 40 or more feet into the soil, while lateral roots stretch as far horizontally. This is the reason you don't see Pinyon Pines clumped together because they must spread out to accommodate the root system requirements. This pine has a very slow growth rate: a 10 foot tall tree will be 80-100 years old.
 
This plant has seeds that are edible
Plant Lore:
The popular nuts from Pinyon Pine are called "pine nuts" or "Indian nuts." These pea-sized seeds ripen in October-November. They are very nutritious consisting of 50% fat, 25% carbohydrates, 25% protein. A single nut yields as much 20 calories. One pound of pine nuts supplies 3,000 calories--much more than an average pound of hamburger! Not what you'd call a low-fat, diet food!

People have been eating pine nuts since 4000 BC. Navajo and Pueblo traditions both identify pinyon nuts as food of their ancestors. In bumper years alone, Navajos collect as much as a million pounds of nuts. Pinyon Nuts are second only to pecans in terms of commercial value. The Pinyon Pine is also prized for its dense and resinous wood, which burns hot and fragrant.

While it is illegal to take rocks, animals or plants from National Parks, the one thing you can do is sample fruit, berries, and nuts. Collecting pine nuts is not an easy task as pine nuts are carefully guarded by the woody and pitch-covered cones that house them. After digging the individual nuts from the cones, you will need to remove the seed hulls. As the hulls are extremely hard, it is not recommended that you use your teeth. Furthermore, conventional nutcrackers are far too large for these small nuts. Some recommend using a coffee cup or a beer mug that you roll over the top of a handful of nuts placed on a flat surface. The trick is to crack the hulls without also pulverizing the seed inside. Roasting the nuts first will help the hulls crack open more easily. Some say roasting adds flavor while others say it takes away flavor. Pine nuts are commonly used to make Pesto, a salad garnish and as a topping on pizza.
 
Pinyon Jay

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Pinyon Jay

Conservation Message:
Like Limber Pines, Pinus flexilis, Pinyon Pines are dependent on Pinyon Jays and Clark's Nutcrackers for their survival. These birds are equipped with a crowbar- shaped bill and throat storage pouches so that they can harvest, transport and cache large quantities of pine nuts. To insure survival through the most difficult winters, a single bird will need to cache up to 30,000 nuts. Seeds from the caches that are not eaten during the following winter, will germinate and sprout another generation of Pinyon Pines.

Evolutionary biologists theorize that this symbiotic relationship has been evolving for a very long time. Initially, Pinyon Pines probably produced regular tiny pine seeds with wings, relying on the wind to spread the next generation. As these two species of cache-making birds began to specialize in Pinyon Pines, the trees that produced less wing and larger, more nutritious seeds were rewarded by having increasingly more of their seeds well-planted by the birds. Once the relationship was cemented, producing any wing on the seed was a waste of energy because the trees could now trust the wings of the birds to get the seeds where they needed to go. Lastly, when the seeds became increasingly nutritious, they needed to be protected from uninvited guests like rodents and other birds. So as heavy hulls and rock- hard cones were developed, the birds had to produce a crowbar-like tool to pry the cones open and crack the hulls; hence the heavy, long, and curved bill these two birds have in common.

Now these trees and birds are mutually dependent. Without these two species of birds, Pinyon Pines would no longer be able to reproduce. These highly-specialized, large, heavy nuts would never get transported far enough away from the parent tree to be able to find their own supply of sunlight, water and nutrients without competition from the parent.

The obligation of the pine nut lovers is to protect this fragile relationship. Surprisingly enough the most destructive thing you could do is to attempt to feed one of these birds, even if you are only offering them a pine nut. Parent birds that learn to accept handouts from humans don't bother teaching their young how to process pine nuts the hard but natural way. The young will ultimately die of starvation once the tourist and their handouts are gone. Fewer Nutcrackers and jays will mean fewer Pinyon Pines, which means even more expensive pine nuts. If for no other reason than for the sake of affordable pesto... Please do not feed the wildlife.
 
Map depicting the range where the Two Needle Pinyon Pine may be found in North America

NPs iMage

Map depicting the range where the Two-Needle Pinyon Pine may be found in North America.

When and where to see at Bryce:
Pinyon Pines are seldom seen above the rim and are most common "where the rock is gray in color" meaning down in the valleys below Bryce Canyon. Cones begin to open in September and nuts can still be found into November as long as the birds don't beat you to them.
 
Further Reading:
Buchanan, Hayle 1992. Wildflowers of Southwestern Utah. Bryce Canyon Natural History Association. Bryce Canyon, Utah

Lanner, Ron. & Rasmuss, Christine. 1988. Trees of the Great Basin: a Natural History. University of Nevada Press.

Little, Elbert L. 2001 National Audubon Society Field Guide to Trees - Western Region. Random House Inc. New York, NY

Stuckey, Martha & Palmer, George. 1998. Western Trees: A Field Guide. Falcon Publishing, Inc. Helena, MT
small herd of Pronghorn Antelope  

Did You Know?
Pronghorn, once roaming the plains of North America in numbers second only to Bison, can be found at Bryce Canyon National Park. They are the fastest land mammal on the continent and only the second fastest mammalian runner in the whole world, reaching speeds of up to 60 mph!
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Last Updated: February 18, 2007 at 11:49 EST