The bark of a palo verde tree is green because it's filled with chlorophyll. Unlike most trees, this plant gets a lot of photosynthesizing done through its bark. According to The Arizona Native Plant ...

The yellow blossoms of the palo verde tree are as much a signature of spring in Tucson as cherry blossoms are in Washington, D.C. The palo verde is Arizona’s state tree and grows throughout the ...

John Winkler emailed me in search of seven desert trees. These trees are suitable for landscaping throughout Southern California and are noteworthy, in addition to their low water requirement, for ...