Layia Explained

Layia is a genus of flowering plants in the family Asteraceae known generally as tidy tips, native to western North America. Several are California endemics.^{[1] [2]}

These are erect daisylike annual herbs with dark glandular stems. The flower heads usually contain white or yellow ray florets; some species have yellow florets tipped sharply in white which give the flowers their common name. The genus is named for naturalist George Tradescant Lay, who was one of the discoverers of Layia gaillardioides.^[3]

External links

• CalFlora Database: Layia — with species images and links.
• Jepson Manual Treatment — Layia
• USDA Plants Profile: Layia

Notes and References

1. https://www.biodiversitylibrary.org/item/7156#page/299/mode/1up Candolle, Augustin Pyramus de. 1838. Prodromus Systematis Naturalis Regni Vegetabilis 7(1): 294
2. http://www.tropicos.org/Name/40002846 Tropicos, Layia Hook. & Arn. ex DC.
3. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=117774 Flora of North America Vol. 21 Page 262 Layia Hooker & Arnott ex de Candolle in A. P. de Candolle and A. L. P. P. de Candolle
4. https://archive.today/20141212233707/http://dixon.iplantcollaborative.org/CompositaeWeb/default.aspx?Page=NameDetails&TabNum=0&NameId=244f26b6-0b81-49b7-b966-f3a27029ace3 Flann, C (ed) 2009+ Global Compositae Checklist
5. http://bonap.net/NAPA/TaxonMaps/Genus/County/Layia Biota of North America Program 2013 county distribution maps