''Guardiola platyphylla'', the Apache plant, is a North American species of plants in the family

Asteraceae Asteraceae () is a large family (biology), family of flowering plants that consists of over 32,000 known species in over 1,900 genera within the Order (biology), order Asterales. The number of species in Asteraceae is rivaled only by the Orchi ...

, native to

Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...

and the southwestern

United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...

. It is found in northwestern Mexico ( Chihuahua,

Sinaloa Sinaloa (), officially the (), is one of the 31 states which, along with Mexico City, compose the Federal Entities of Mexico. It is divided into 18 municipalities, and its capital city is Culiacán Rosales. It is located in northwest Mexic ...

, and

Sonora Sonora (), officially Estado Libre y Soberano de Sonora (), is one of the 31 states which, along with Mexico City, comprise the Administrative divisions of Mexico, Federal Entities of Mexico. The state is divided into Municipalities of Sonora, 72 ...

) and the southwestern United States (southern

Arizona Arizona is a U.S. state, state in the Southwestern United States, Southwestern region of the United States, sharing the Four Corners region of the western United States with Colorado, New Mexico, and Utah. It also borders Nevada to the nort ...

). ''Guardiola platyphylla'' is a branching perennial herb or subshrub up to tall. Leaves are opposite, thick and leathery, up to long. One plant will produce several flower heads in a flat-topped array. Each head contains 1-5 white ray flowers surrounding 3-20 white disc flowers.Gray, Asa. 1853. Smithsonian Contributions to Knowledge 5(6): 91.

diagnosis Diagnosis (: diagnoses) is the identification of the nature and cause of a certain phenomenon. Diagnosis is used in a lot of different academic discipline, disciplines, with variations in the use of logic, analytics, and experience, to determine " ...

Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...

, description and commentary in English

References

External links

Photo of herbarium specimen at Missouri Botanical Garden, collected in Sonora in 2011Andrew Hodgson, Andy Down Under, Trees, Shrubs & Ferns of the Sonoran Desert
photos of several species including ''Guardiola platyphylla'' platyphylla Flora of Northwestern Mexico Plants described in 1853 Flora of Arizona {{Millerieae-stub