September Color Appears at the Washington Park Arboretum
The State of the Arboretum

1) Liriodendron tulipifera Tulip Tree
- The state tree of Indiana.
- The Western Hemisphere representative of the two-species genus Liriodendron, and the tallest eastern hardwood.
2) Pinus resinosa Red Pine
- The state tree of Minnesota.
- It is a long-lived tree, reaching a maximum age of about 500 years.
- The wood is commercially valuable in forestry for timber and paper pulp, and the tree is also used for landscaping.
3) Pinus strobus Eastern White Pine
- The state tree of Michigan.
- Eastern white pine forests originally covered much of northeastern North America. Only one percent of the old-growth forests remain after the extensive logging operations that existed from the 18th century into the early 20th century.
- This tree is known to the Native American Haudenosaunee (Iroquois Nation) as the “Tree of Peace”.
4) Sequoia sempervirens Coast Redwood
- The state tree of California.
- These trees are among the oldest living things on Earth.
- Before commercial logging and clearing began by the 1850s, this massive tree occurred along much of coastal California and the southwestern corner of coastal Oregon.
5) Tsuga hetrophylla Western Hemlock
- The state tree of Washington.
- Tsuga heterophylla is an integral component of Pacific Northwest forests west of the Coast Ranges, where it is a climax species. It is also an important timber tree throughout the region, along with many of its large coniferous associates.