desertfern Fabaceae Lysiloma watsonii Rose Listen to the Latin symbol: LYWA Other Fact Sheets
Leaf: Alternate, evergreen (drought deciduous), bipinnately compound, 3 to 5 inches long, with 4 to 10 pairs of major leaflets and numerous pairs of very small minor, very finely divided leaflets, entire, leaf rather feathery looking, bright green to grayish green.
Flower: Creamy white, round cluster, 1/2 inch across on a slender 1 inch stem, appearing in late spring in open terminal clusters.
Fruit: A 4 to 8 inch long, 1/2 inch wide flat legume, dark reddish brown to nearly black, flattened seeds inside.
Twig: Slender, reddish brown, zig zag, speckled with lighter lenticels, thornless.
Bark: Gray to reddish brown, developing scaly, loose patches.
Form: Small, multi-stemmed tree or large, wide spreading shrub reaching up to 20 feet tall with sn open airy crown.

Looks like: palo blanco - guajillo - whitethorn acacia
leaf fruit twig bark form1 map
Additional Range Information:
Lysiloma watsonii is native to North America.
Range may be expanded by planting.
See states reporting desertfern.
External Links:
USDA Plants Database
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Dept. of Forest Resources
and Environmental Conservation,
all rights reserved.
Photos and text by: John Seiler,
Edward Jensen, Alex Niemiera,
and John Peterson
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