Sphinctospermum | |
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Scientific classification
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Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Fabales |
Family: | Fabaceae |
Subfamily: | Faboideae |
Tribe: | Robinieae |
Genus: |
Sphinctospermum Rose (1906) |
Species: | S. constrictum
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Binomial name | |
Sphinctospermum constrictum | |
Synonyms [2] | |
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Sphinctospermum is a genus of flowering plants in the legume family, Fabaceae. It belongs to the subfamily Faboideae. It is a monotypic genus, containing the single species Sphinctospermum constrictum. It is native to North America, where it occurs in western and central Mexico and in Arizona in the southwestern United States. [2] [1] [3] The plant is known by the common name hourglass peaseed. [4]
This species occurs in grasslands and dry forests. It grows in sandy soils and is more common in wet years. [1]
Lavin, M. 1990. The genus Sphinctospermum (Leguminosae): Taxonomy and tribal relationships as inferred from a cladistic analysis of traditional data. Systematic Botany Vol. 15, No. 4 pp. 544–559