2006 39c Quaking Aspen, Largest Plant
# 4072 - 2006 39c Quaking Aspen, Largest Plant
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U.S. #4072
Quaking Aspen
Wonders of America
Quaking Aspen
Wonders of America
Issue Date: May 27, 2006
City: Washington, DC
Quantity Issued: 204,000,000
Printed by: Avery Dennison
Printing Method: Photogravure
Perforation: Serpentine die cut 10 ¾
Color: Multicolored
City: Washington, DC
Quantity Issued: 204,000,000
Printed by: Avery Dennison
Printing Method: Photogravure
Perforation: Serpentine die cut 10 ¾
Color: Multicolored
The quaking aspen belongs to the willow family. It grows up to 100 feet high with smooth, green- to gray-white bark. The heart-shaped leaves tremble, or quake, in even the slightest breeze.
Aspens almost always reproduce by sending roots out horizontally underground, as far as 100 feet. New shoots grow up from these roots and develop into tree trunks. Moreover, each new trunk can send out its own set of underground roots to form still more shoots.
Together, all the stems, roots, branches, and leaves that originated from one tree is called a clone. The entire clone shares the same genetic material as well as an inter-connected root system.
One quaking aspen clone in the Wasatch Mountains of Utah, named Pando, has more than 47,000 stems. This clone may be the world’s most massive organism, weighing about 13 million pounds.
Fires ensure an aspen clone’s continued growth. Destruction of a great number of a clone’s stems triggers an increase in new, rapidly growing shoots that can even exceed the amount that was destroyed. Pando probably attained such a great size because, until recently, it experienced a regular sequence of fires that stimulated periodic regeneration and growth.
U.S. #4072
Quaking Aspen
Wonders of America
Quaking Aspen
Wonders of America
Issue Date: May 27, 2006
City: Washington, DC
Quantity Issued: 204,000,000
Printed by: Avery Dennison
Printing Method: Photogravure
Perforation: Serpentine die cut 10 ¾
Color: Multicolored
City: Washington, DC
Quantity Issued: 204,000,000
Printed by: Avery Dennison
Printing Method: Photogravure
Perforation: Serpentine die cut 10 ¾
Color: Multicolored
The quaking aspen belongs to the willow family. It grows up to 100 feet high with smooth, green- to gray-white bark. The heart-shaped leaves tremble, or quake, in even the slightest breeze.
Aspens almost always reproduce by sending roots out horizontally underground, as far as 100 feet. New shoots grow up from these roots and develop into tree trunks. Moreover, each new trunk can send out its own set of underground roots to form still more shoots.
Together, all the stems, roots, branches, and leaves that originated from one tree is called a clone. The entire clone shares the same genetic material as well as an inter-connected root system.
One quaking aspen clone in the Wasatch Mountains of Utah, named Pando, has more than 47,000 stems. This clone may be the world’s most massive organism, weighing about 13 million pounds.
Fires ensure an aspen clone’s continued growth. Destruction of a great number of a clone’s stems triggers an increase in new, rapidly growing shoots that can even exceed the amount that was destroyed. Pando probably attained such a great size because, until recently, it experienced a regular sequence of fires that stimulated periodic regeneration and growth.