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|Mexican Buckeye flowers|
Ungnadia speciosa, the Mexican buckeye, is a shrub or small tree native to northern Mexico as well as Texas and southern New Mexico in the United States. It is monotypic, the only species in the genus Ungnadia. The name honours Christian Samuel Baron von Ungnad (d. 1804).
It differs from the buckeyes in the related genus Aesculus in having alternate, pinnate leaves with 5-7 leaflets, but the flowers and nuts are similar. Another similar related genus is the soapberry (genus Sapindus).
- "Ungnadia Endl.". Germplasm Resources Information Network. United States Department of Agriculture. 2006-03-29. Retrieved 2010-01-19.
- "Ungnadia speciosa Endl.". Germplasm Resources Information Network. United States Department of Agriculture. 2008-01-10. Retrieved 2013-05-14.
- Quattrocchi, Umberto (2000). CRC World Dictionary of Plant Names. Vol. 4 R-Z. Taylor & Francis US. p. 2760. ISBN 978-0-8493-2678-3.
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