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			File:Calia_secundiflora_flowers.jpg\|Dermatophyllum flowers
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'''Dermatophyllum''' is a genus of flowering plants in the family [[Fabaceae]], subfamily [[Faboideae]]. It is native to the southwestern United States and Mexico, showcasing the diversity of the legume family in arid and semi-arid environments. The genus was previously included in the genus ''[[Sophora]]'', but recent genetic studies have led to its reclassification. Members of this genus are commonly known as mescal beans or Texas mountain laurels, with the most well-known species being ''Dermatophyllum secundiflorum'', renowned for its vibrant purple flowers and glossy, evergreen leaves.

== Description ==
Plants in the genus ''Dermatophyllum'' are evergreen shrubs or small trees, reaching heights of up to 8 meters. They are characterized by their dense, glossy, dark green foliage and clusters of fragrant, purple flowers, which bloom in early spring. The flowers are followed by seed pods containing bright red seeds, which are toxic if ingested. The bark is smooth and dark, adding to the plant's ornamental appeal.

== Distribution and Habitat ==
''Dermatophyllum'' species are adapted to dry, rocky environments, commonly found in limestone soils. Their native range extends from the southwestern United States (Texas and New Mexico) into northern and central Mexico. These plants are drought-tolerant and thrive in full sun, making them suitable for xeriscaping and desert gardens.

== Taxonomy ==
The reclassification of ''Dermatophyllum'' from ''Sophora'' was based on molecular phylogenetic studies, which revealed significant genetic differences warranting its status as a separate genus. The genus ''Dermatophyllum'' includes several species, with ''Dermatophyllum secundiflorum'' being the most prominent.

== Uses ==
While all parts of the ''Dermatophyllum'' plants are toxic due to the presence of alkaloids, the seeds have been used historically by Native American tribes for ceremonial purposes and as a source of dye. The plants are also popular in horticulture for their ornamental value, particularly in regions with arid climates.

== Conservation ==
Species within the ''Dermatophyllum'' genus are not currently listed as endangered, but they face threats from habitat destruction and overcollection. Conservation efforts are focused on habitat preservation and sustainable collection practices to ensure the survival of these unique plants in their natural environments.

== See Also ==
* [[Fabaceae]]
* [[Faboideae]]
* [[Sophora]]
* [[Xeriscaping]]
* [[Phylogenetics]]

[[Category:Fabaceae]]
[[Category:Flora of the Southwestern United States]]
[[Category:Flora of Mexico]]

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Dermatophyllum - Revision history

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