Also known as Rhus vernix. It is a woody shrub or small trees that can cause skin irritation when touched.…
"Summer Pruning should be performed while the shoots are yet young and succulent, so that they may be…
"Summer Pruning should be performed while the shoots are yet young and succulent, so that they may be…
Also known as Quercus michauxii. The branch of a Swamp Chestnut Oak tree, native to the wetlands of…
Also known as Populus heterophylla. The branch from a Swamp Cottonwood tree, native to warm regions…
Also known as Hicoria minima. The branch of a Swamp Hickory tree, which produces pear-shaped nuts.
Also known as Quercus laurifolia. The branch of a Swamp Laurel Oak, native to the southeast United States.
Also known as Quercus palustris. A species of red oak tree native to eastern United States.
Also known as Betula lenta. A species of birch native to eastern North America.
Also known as Malus coronaria. The branch of a Sweet Crabapple tree, native to the southern United States.
Also known as Magnolia virginiana. The branch of a Sweetbay Magnolia plant, native to the southeastern…
Swiss stone pine is the common name of pinus cembra. The leaves are marked with silver lines and are…
Also known as Pinus pungens. The Table Mountain Pine is native to the Appalachian Mountains.
Also known as Pinus contorta, var. murrayana. The pine cone of a Tamarack Pine tree, native to the Cascade…
Also known as Yucca treculeana. The branch of a Texas Bayonette, a species of perennial shrubs in the…
Also known as Ulmus crassifolia. The branch of a Texas Cedar Elm, native to to south central North America.
An evergreen coniferous tree found throughout North America and Europe.
An illustration of the flower of a Tiger's Claw tree. Erythrina variegata (Tiger's Claw, Indian Coral…
"Is of a brownish or light ash-color, and is found under logs and the bark of decayed trees." — Goodrich,…
Cleared land vegetation topography symbol used in map drawing and drafting.
A drafting topography vegetation symbol for cultivated land.
Vegetation topography symbol for deciduous trees convention in drafting and map drawing.
A vegetation Everglade tree for topography symbol used in map drawing and drafting.
A conventional oak tree vegetation symbol used in map drawing and drafting.
A conventional vegetation topography for orchard commonly used in map drawing and drafting.
Conventional vegetation topography symbol for pine, willow and brush.
A map drawing or drafting conventional vegetation symbol for willow.
Also known as Pinus torreyana. The Torrey Pine is the rarest pine species in the United States, and…
Also known as Quercus toumeyi. The branch of a Toumey Oak tree, native to Mexico and the United States.
Also known as Heteromeles arbutifolia. The branch of a Toyon tree, native to California.
Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…
Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…
Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…
Tangrams, invented by the Chinese, are used to develop geometric thinking and spatial sense. Seven figures…
"Scalariform or ladder-like prismatic vessels of a Tree Fern." — Encyclopedia Britanica, 1893
" Almonds come from Spain and Italy, but they grow spontaneously in many other warm countries. There…
"The date is the fruit of a tall and graceful palm which shoots up a single straight stem to height…
"It is a very large tree, the trunk being sometimes three feet in diameter, although it is of little…
The decayed hole where a limb was removed. The wood-destroying fungi caused the tree to break.
Pictured is a tree still standing in the Humphrey Marshall collection of the Arnold Arboretum.
A long stub left in pruning. The wound cannot heal. The tape shows how far the trunk is hollow. The…
Also known as Platanus occidentalis. This tree can grow to massive sizes, up to 130 feet in height and…