Hymenothrix wrightii explained

Hymenothrix wrightii, commonly known as Wright's hymenothrix^[1] or Wright's thimblehead, is a North American species of flowering plant in the daisy family. It grows in northwestern Mexico (Sonora, Chihuahua, Baja California) and the southwestern United States (western Texas, Arizona, New Mexico, far southern California).^{[2] [3]}

Hymenothrix wrightii is a perennial herb up to 60 cm (2 feet) tall. One plant produces 6-8 flower heads per stem, in a flat-topped array. Each head has 15-30 white, pink, or pale purple disc flowers but no ray flowers. The individual disc flowers are larger and showier than in many other species in the family.^{[4] [5] [6]}

Notes and References

1. Web site: Hymenothrix wrightii . Keil . David J. . 2013 . Jepson eFlora . Jepson Flora Project . 3 August 2015.
2. http://bonap.net/MapGallery/County/Hymenothrix%20wrightii.png Biota of North America Program 2014 county distribution map
3. http://swbiodiversity.org/seinet/taxa/index.php?taxon=3855&taxauthid=1 SEINet, Southwestern Biodiversity, Arizona chapter
4. https://www.biodiversitylibrary.org/page/9050472#page/601/mode/1up Gray, Asa. 1853. Smithsonian Contributions to Knowledge 5(6): 97–98
5. https://www.biodiversitylibrary.org/page/28762699#page/64/mode/1up Rydberg, Per Axel. 1914. North American Flora 34(1): 56
6. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=250066982 Flora of North America, Hymenothrix wrightii A. Gray, 1853.