Clappia suaedifolia explained

Clappia suaedifolia is the sole species in the North American genus of flowering plants in the family Asteraceae, Clappia.^{[1] [2]}

Clappia suaedifolia is native to Texas and Tamaulipas. It is a succulent, branching shrub or subshrub up to 30 cm (12 inches) tall. Flower heads are yellow, appearing one at a time, with both ray florets and disc florets.^{[3] [4] [5]}

The genus is named for Dr. Asahel Clapp, of New Albany, Indiana.^[1]

Annotations on the type specimen of Haplopappus nealleyi in the US National Herbarium,^[6] on which the genus Stanfieldia and sole species Stanfieldia nealleyi were also based,^[7] suggest that these later names may be synonyms of Clappia suaedifolia.

Notes and References

1. https://www.biodiversitylibrary.org/item/91651#page/93/mode/1up Gray, Asa. 1859. Report on the United States and Mexican boundary survey :made under the direction of the secretary of the Interior, Botany 2(1): 93-94
2. http://www.tropicos.org/Name/2726027 Tropicos, Clappia suaedifolia A. Gray
3. CONABIO. 2009. Catálogo taxonómico de especies de México. 1. In Capital Nat. México. CONABIO, México D.F.
4. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=107220 Flora of North America, Clappia A. Gray in W. H. Emory
5. http://bonap.net/MapGallery/County/Clappia%20suaedifolia.png Biota of North America Program 2013 county disstribution map
6. Web site: Department of Botany Collections, Type Register Search (Haplopappus nealleyi). National Museum of Natural History. 2016-01-06. Smithsonian Institution. Washington, D.C..
7. Web site: IPNI Plant Name Query Results for Stanfieldia nealleyi . . 2016-01-06 .