Eastern Native Tree Society
The Eastern Native Tree Society (ENTS) is a cyberspace interest group devoted to the celebration of trees of the eastern North America through art, poetry, music, mythology, science, medicine, and wood crafts. ENTS is: 1) the foremost organization for accurately measuring, mapping and documenting the great trees and forests of Eastern North America; 2) Conducted the first detailed mapping of the branch and trunk structure and volume measurements for the largest Eastern trees - The Middleton Oak and Sag Branch Tulip; 3) Current research projects include documenting the great Eastern Hemlocks before they fall prey to the invasive Hemlock Wooly Adelgid, and 3) Cosponsors of the Forest Summit Series at Holyoke College in Massachusetts and the upcoming Eastern Old Growth Conference in Arkansas.
American Forests
American Forests is the nation’s oldest nonprofit citizens’ conservation organization. Citizens concerned about the waste and abuse of the nation’s forests founded American Forests in 1875. The organization is proud of its historic roots in the development of America’s conservation movement and proud of the new approaches the organization has developed to help people improve the environment in the 21st Century. American Forests’ Ecosystem Restoration and Maintenance Agenda presents our core values and seeks to build support for our policy goals. These goals focus on assisting communities in planning and implementing tree and forest actions to restore and maintain healthy ecosystems and communities. We also work with community-based forestry partners in both urban and rural areas to help them participate in national forest policy discussions. American Forests seeks to broaden awareness of the interdependence of communities and forests through our policy and communication activities with local partners.
American Forests' National Register of Big Trees
AMERICAN FORESTS' National Register of Big Trees is the result of this rallying cry. Since 1940, AMERICAN FORESTS has documented the largest known specimens of every native and naturalized tree in the United States. The largest tree of its species in the country is the National Champion. National champion trees capture our imagination for their size and strength, however, there's more to a champion than just its size—they are symbols of all the good work trees do for the quality of the environment and our quality of life.
Longwood Gardens
Longwood Gardens is the world’s premier horticultural display garden. Longwood Gardens was created by industrialist Pierre S. DuPont and offers 1,050 acres (425 hectares) of gardens, woodlands, and meadows; 20 outdoor gardens; 20 indoor gardens within 4 acres (1.6 hectares) of heated greenhouses; 11,000 different types of plants; spectacular fountains; extensive educational programs including horticultural career training and internships; and 800 horticultural and performing arts events each year, from flower shows, gardening demonstrations, courses, and children’s programs to concerts, organ and carillon recitals, musical theatre, and fireworks displays. Longwood is open every day of the year and attracts more than 900,000 visitors annually.
Haverford College Arboretum
In 1831, a distinguished group of Philadelphia and New York Quakers purchased 198.5 acres which lay in the center of the Welsh Tract, a part of the 40,000 acres of land ceded to the Welsh Quakers by William Penn. Upon this land the group founded Haverford College two years later. William Carvill, an English gardener, was hired in 1834 to convert the farmland into a functioning campus. His design reflected the influence of Sir Humphry Repton, one of England's great landscape architects. At the turn of the century, a concerned group recognized the need to preserve Haverford’s rich heritage and formed the Campus Club, which functioned for over fifty years under the inspired leadership of Edward Woolman, Class of 1893. In the early 1970’s, John A. Silver, Class of 1925, envisioned an organization that would carry the work of the Campus Club. In 1974, the Campus Arboretum Association was founded with a commitment to continue the tradition of campus beautification at Haverford College.
The Morris Arboretum
The Morris Arboretum of the University of Pennsylvania, official arboretum of the commonwealth of Pennsylvania. Morris Arboretum of the University of Pennsylvania is an interdisciplinary center that integrates art, science, and the humanities. Thousands of rare and lovely woody plants, including many of Philadelphia's oldest, rarest and largest trees, are set in a romantic, 92-acre, Victorian landscape garden of winding paths, streams, flowers, and special garden areas.
Tyler Arboretum
Tyler is one of the oldest and largest arboreta in the northeastern United States, encompassing 650 acres of horticultural collections, rare specimens, ancient trees, historic buildings, and extensive hiking trails. The Arboretum offers a wide variety of workshops, classes, and tours for both adults and children, as well as school groups, scout groups, and clubs. As a private, not-for-profit organization, Tyler is not government supported. The Arboretum survives and thrives on the support of our members and donors. Please browse our site, then plan a visit to this unique and beautiful destination, where we connect neighbors with nature.
Pennsylvania Forestry Association
The Pennsylvania Forestry Association is a broad-based citizens organization, provides leadership in sound forest management advice and education and promotes wise stewardship to private land owners, resulting in benefits for the residents of the Commonwealth. The Pennsylvania Forestry Association (PFA) is the nation's oldest state organization devoted to forest conservation. Founded in 1886, it is an association of individuals, landowners, loggers, forest industries, resource professionals and businesses that are concerned about the stewardship of Pennsylvania's forest resources.
Ultimate Tree-Ring web pages
designed to be the ULTIMATE source for information on the science of Dendrochronology. I've designed these pages to be easily understood by people at all levels of education, from elementary school students to high school students, from first grade teachers to college professors. You won't find anything fancy here - I want these pages to be readable, enjoyable, and (most of all) educational. My goal is to make available as much information about dendrochronology as I can possibly find on the Internet, from the basics of tree-ring dating, to reference and bibliographic information, to products and supplies, to books, and more!
Botanical Record-Breakers
The old adage, "records are made to be broken," certainly applies to plants. Each year gardeners from throughout the world compete with their largest tomatoes and squash, largest potatoes and turnips, largest orchids, tallest sunflowers and dozens of other superlative categories. Authenticated records of their prized fruits, vegetables and blossoms appear in the latest editions of the Guinness Book Of World Records. But of all the botanical records, the most remarkable come from wild plants growing in their natural habitats. These "contestants" compete in a vast natural arena known as the world ecosystem or biosphere. Although most of these astonishing plants are listed in the Guinness Book, several have never been rightfully acknowledged.