Biology:Syntrichopappus
| Syntrichopappus | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Asteraceae |
| Subfamily: | Asteroideae |
| Tribe: | Madieae |
| Subtribe: | Baeriinae |
| Genus: | Syntrichopappus A.Gray |
| Type species | |
| Syntrichopappus fremontii A.Gray
| |
| Species | |
|
2, see text | |
Syntrichopappus is a genus of flowering plants in the family Asteraceae, found in the Southwestern United States and northern Mexico, including Baja California. It is a member of the Heliantheae alliance of the Asteraceae.[1] There are two species.[2] Common names include xerasid[2] and Frémont's-gold.[3]
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).[2][4][clarification needed] The common name "xerasid" derives from Greek, meaning "son of dryness".[2]
Description
Leaves
Leaves are simple, alternate, sometimes with the lowest ones opposite.[4]
Inflorescence
Flower heads are solitary.[4] There is one yellow (or white with red veins) ray flower per phyllary, with 3-lobed ligules.[4] The yellow disk flowers are narrowly funnel shaped.[4]
Fruits
The fruits have 0 to many pappus bristles, fused at the base.[4]
Species
- Syntrichopappus fremontii (yellowray Frémont's gold) is native to desert regions of the American southwest and adjacent Baja California. It is a small woolly herb just a few centimeters tall bearing flower heads with usually five toothed yellow ray florets.[5][6]
- Syntrichopappus lemmonii (pinkray Frémont's gold) is endemic to California , where it can be found in the southern coastal mountain ranges, including the Transverse Ranges. Its flower heads contain white, red-veined ray florets with pink undersides.[7][8]
References
- ↑ "Genus Syntrichopappus". Universal Protein Resource (UniProt). https://www.uniprot.org/taxonomy/149454.
- ↑ 2.0 2.1 2.2 2.3 California Desert Wildflowers, An Introduction to Families, Genera, and Species; Sia Morhardt, Emil Morhardt; p 74-5
- ↑ "Syntrichopappus". Natural Resources Conservation Service PLANTS Database. USDA. https://plants.usda.gov/core/profile?symbol=SYNTR. Retrieved 7 December 2015.
- ↑ 4.0 4.1 4.2 4.3 4.4 4.5 Jepson Desert Manual: Syntrichopappus, Dale E. Johnson, 2002 Ed., p 184
- ↑ Jepson Manual Treatment: S. fremontii
- ↑ Flora of North America: S. fremontii
- ↑ Jepson Manual Treatment: S. lemmonii
- ↑ Flora of North America: S. lemmonii
External links
- Jepson Manual Treatment
- USDA Plants Profile
- Flora of North America
- Photo gallery: S. fremontii
- Photo gallery: S. lemmonii
Wikidata ☰ Q5235679 entry
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