Senna wislizeni
species of plant
Senna wislizeni, commonly called Wislizenus' senna or shrubby senna (formerly "cassia", but this generally refers to larger Cassiinae), is a species of legume. Formerly in the wastebin taxon Cassia sensu lato, it is now placed in the genus Senna or sometimes separated in Palmerocassia together with Senna unijuga.
This is a perennial, deciduous shrub native to Chihuahua and Hidalgo in Mexico; and Texas, New Mexico, and Arizona in the U.S. It is a desert plant with good heat and drought tolerance.
Senna wislizeni can reach ten feet (3.0 meters) tall with a ten-foot spread. It has compound foliage. In summer, especially late summer, it bears yellow flowers developing into long, flat, dark brown pods. Flowers are visited by carpenter bees, and bumblebees. Sulphur butterflies use the plant as a larval food source.
The species is named after F. A. Wislizenus, a botanist who studied Mexican flora in the mid-19th century. Some sources mistakenly spell the epithet "wislizenii." Correct spelling is with one "i," per ICN article 60C.2.
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The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Jul 27, 2026. The linked authority identifier is Q7450843. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Senna wislizeni” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.