Lasthenia glabrata

Lasthenia glabrata is a North American species of flowering plant in the family Asteraceae known by the common names yellowray goldfields[2] and yellow-rayed lasthenia.[3] It is endemic to California, where it is a resident of vernal pools and other moist areas in a number of habitat types. It is widespread across much of the state, from San Diego County to Tehama County.[4]

Lasthenia glabrata
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Lasthenia
Species:
L. glabrata
Binomial name
Lasthenia glabrata
Synonyms[1]
  • Baeria leptalea (A.Gray) A.Gray
  • Burrielia leptalea A.Gray
  • Lasthenia leptalea (A.Gray) Ornduff
  • Lasthenia coulteri (A.Gray) Greene, syn of subsp. coulteri

Description

Lasthenia glabrata is an annual herb growing up to 50 cm (19.5 in) tall. The thin stem has a few pairs of oppositely-arranged, smooth-edged linear leaves each up to 15 centimeters (5.9 inches) long.[5][6][7]

The plant flowers in solitary or loosely clustered flower heads with 7-15 yellow ray florets surrounding numerous disc florets.[5]

The fruit is an achene a few millimeters long with no pappus.[5]

Subspecies[1][5]
  • Lasthenia glabrata subsp. glabrata - San Francisco Bay area, Orange County, mid part of Central Valley
  • Lasthenia glabrata subsp. coulteri (A.Gray) Ornduff - southern California, northern Central Valley

References
  1. The Plant List, Lasthenia glabrata Lindl.
  2. USDA, NRCS (n.d.). "Lasthenia glabrata". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 23 January 2016.
  3. BSBI List 2007 (xls). Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-06-26. Retrieved 2014-10-17.
  4. Calflora taxon report, University of California, Lasthenia glabrata Lindley, Yellow rayed Lasthenia, yellow rayed goldfields, yellowray goldfields
  5. Flora of North America, Lasthenia glabrata Lindley
  6. Lindley, John 1835. Edwards's Botanical Register 21: plate 1780 plus subsequent text page full-page color illustration, diagnosis in Latin, commentary in English
  7. Rydberg, Per Axel 1913. in Britton, Nathaniel Lord, North American Flora 34: 81

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