''Syntrichopappus'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of flowering plants in the family
Asteraceae
The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w ...
, found in the Southwestern United States and northern Mexico, including Baja California. It is a member of the Heliantheae alliance of the Asteraceae. There are two species.
[California Desert Wildflowers, An Introduction to Families, Genera, and Species; Sia Morhardt, Emil Morhardt; p 74-5] Common names include xerasid
[ and Frémont's-gold.
The name ''"Syntrichopappus"'' derives from a Greek name: "syn" = "joined together", "tricho" = "hair", of the " pappus", which means many bristles fused at the base (however some species have no pappus).][Jepson Desert Manual: Syntrichopappus, Dale E. Johnson, 2002 Ed., p 184] The common name "xerasid" derives from Greek, meaning "son of dryness".[
]
Description
Leaves
Leaves are simple
Simple or SIMPLE may refer to:
*Simplicity, the state or quality of being simple
Arts and entertainment
* ''Simple'' (album), by Andy Yorke, 2008, and its title track
* "Simple" (Florida Georgia Line song), 2018
* "Simple", a song by Johnn ...
, alternate
Alternative or alternate may refer to:
Arts, entertainment and media
* Alternative (''Kamen Rider''), a character in the Japanese TV series ''Kamen Rider Ryuki''
* ''The Alternative'' (film), a 1978 Australian television film
* ''The Alternative ...
, sometimes with the lowest ones opposite.[
]
Inflorescence
Flower heads are solitary.[ There is one yellow (or white with red veins) ]ray flower
The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae we ...
per phyllary
In botanical terminology, a phyllary, also known an involucral bract or tegule, is a single bract of the involucre of a composite flower. The involucre is the grouping of bracts together. Phyllaries are reduced leaf-like structures that form one o ...
, with 3-lobed ligules.[ The yellow ]disk flower
The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae we ...
s are narrowly funnel shaped.[
]
Fruits
The fruits have 0 to many pappus bristles, fused at the base.[
]
Species
*'' Syntrichopappus fremontii'' (yellowray Frémont's gold) is native to desert regions of the American southwest and adjacent Baja California
Baja California (; 'Lower California'), officially the Free and Sovereign State of Baja California ( es, Estado Libre y Soberano de Baja California), is a state in Mexico. It is the northernmost and westernmost of the 32 federal entities of Mex ...
. It is a small woolly herb just a few centimeters tall bearing flower heads with usually five toothed yellow ray florets.
*'' Syntrichopappus lemmonii'' (pinkray Frémont's gold) is endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...
to California
California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...
, where it can be found in the southern coastal mountain ranges, including the Transverse Ranges
The Transverse Ranges are a group of mountain ranges of southern California, in the Pacific Coast Ranges physiographic region in North America. The Transverse Ranges begin at the southern end of the California Coast Ranges and lie within Santa B ...
. Its flower heads contain white, red-veined ray florets with pink undersides.Flora of North America: ''S. lemmonii''
/ref>
References
External links
Jepson Manual TreatmentUSDA Plants ProfileFlora of North AmericaPhoto gallery: ''S. fremontii''Photo gallery: ''S. lemmonii''
Madieae
Asteraceae genera
{{Madieae-stub