Sphinctospermum Explained

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.^{[1] [2]} The plant is known by the common name hourglass peaseed.^[3]

This species occurs in grasslands and dry forests. It grows in sandy soils and is more common in wet years.^[1]

External links

• Sphictospermum. The Plant List.

Further reading

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

Notes and References

1. https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.143530/Sphinctospermum_constrictum Sphinctospermum constrictum.
2. Lavin M. & J. J. Doyle. 1991. Tribal relationships of Sphinctospermum (Leguminosae): Integration of traditional and chloroplast DNA data. Systematic Botany Vol. 16, No. 1 pp. 162–172.
3. https://plants.usda.gov/core/profile?symbol=SPCO3 Sphinctospermum constrictum.