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Syntrichopappus

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Syntrichopappus
Syntrichopappus fremontii
Scientific classification Edit this 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 family.[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

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Leaves

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Leaves are simple, alternate, sometimes with the lowest ones opposite.[4]

Inflorescence

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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

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The fruits have 0 to many pappus bristles, fused at the base.[4]

Species

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References

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  1. ^ "Genus Syntrichopappus". Universal Protein Resource (UniProt).
  2. ^ a b c d California Desert Wildflowers, An Introduction to Families, Genera, and Species; Sia Morhardt, Emil Morhardt; p 74-5
  3. ^ USDA, NRCS (n.d.). "​Syntrichopappus​". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 7 December 2015.
  4. ^ a b c d e f Jepson Desert Manual: Syntrichopappus, Dale E. Johnson, 2002 Ed., p 184
  5. ^ Jepson Manual Treatment: S. fremontii
  6. ^ Flora of North America: S. fremontii
  7. ^ Jepson Manual Treatment: S. lemmonii
  8. ^ Flora of North America: S. lemmonii
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