Roger's Tree Pick for May: Palo Verde


Last updated 5/3/2007 at Noon

Parkinsonia is the botanical name for the lovely drought-tolerant Pale Verde, which includes some 29 species, most of which occur in the warmer, drier portions of the Americas. The genus is named for John Parkinson (1567-1650), a London apothecary and gardener and author of two very important botanical books of his time.

Palo Verde, or “green wood” in Spanish, has a thin, almost waxy green bark studded with large thorns. The smooth greenish trunk and branches have, for a large part, taken over the photosynthesis (the chlorophyll-making process) in dry periods when the plant sheds its l...

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