Layia

Layia is a genus of flowering plants in the daisy family known generally as tidy tips, native to western North America. Several are California endemics.[4][5]

This article is about the genus of tidy tips. For the defunct legume genus, see Ormosia.

Layia
tidy tips
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Madieae[1]
Genus:
Layia

Hook. & Arn. ex DC. 1838, conserved name, not Hook. & Arn. 183 (syn of Ormosia in Fabaceae)[2][3]
Synonyms[1]

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.[6]

Species[1][7]

References
  1. Flann, C (ed) 2009+ Global Compositae Checklist
  2. Tropicos search for Layia
  3. The Plant List, Ormosia emarginata (Hook. & Arn.) Benth.
  4. Candolle, Augustin Pyramus de. 1838. Prodromus Systematis Naturalis Regni Vegetabilis 7(1): 294 in Latin
  5. Tropicos, Layia Hook. & Arn. ex DC.
  6. 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
  7. Biota of North America Program 2013 county distribution maps
  8. Wildflowers of the Southwestern Deserts


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