Baileya (plant)

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Desert marigolds
Baileya multiradiata flower 1.jpg
Baileya multiradiata
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Asteroideae
Tribe: Helenieae
Genus: Baileya
Harvey & A.Gray ex Torrey, 1848
Type species
Baileya multiradiata
Harvey & A.Gray ex Torrey, 1848

Baileya (the desert marigolds) is a genus of plants in the aster family Asteraceae. All are native to the southwestern United States and to Mexico.[1][2][3]

They are typically annual, though B. multiradiata may be perennial. The leaves, which may range from being entire to deeply lobed, mostly occur in a basal cluster. From this arises several flower stems, up to 18 inches (50 cm) in height, usually carrying a single yellow radiate flower each, although B. pauciradiata may have 2-3 flowers on a stem.[4]

Desert marigolds typically have their main bloom in the spring, extending through July. Summer thunderstorms may enable a second bloom in October and even into November.[5]

Baileya species are used as food plants by the larvae of some Lepidoptera species including Schinia miniana (which feeds exclusively on the genus) and Schinia pallicincta (which feeds exclusively on B. pauciradiata).

The genus is named after US microscopist and West Point professor Jacob Whitman Bailey (1811–1857), known for his studies of diatoms .[4]

  1. Baileya multiradiata Harv. & A.Gray ex Torr. - California, Nevada, Arizona, New Mexico, southwestern Utah, western Texas, Sonora, Chihuahua, Coahuila, Durango, Aguascalientes
  2. Baileya pauciradiata A.Gray - southeastern California, western Arizona, southwestern Utah, Sonora, Baja California
  3. Baileya pleniradiata Harv. & A. Gray - California, southern Nevada, Arizona, southwestern Utah, Chihuahua, Sonora, Baja California


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