Lasthenia glabrata

Lasthenia glabrata
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Heliantheae
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

Lasthenia glabrata is a North American species of flowering plant in the daisy family 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]

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. 1 2 The Plant List, Lasthenia glabrata Lindl.
  2. ↑ "Lasthenia glabrata". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 23 January 2016.
  3. ↑ "BSBI List 2007". Botanical Society of Britain and Ireland. Archived from the original (xls) on 2015-01-25. Retrieved 2014-10-17.
  4. ↑ Calflora taxon report, University of California, Lasthenia glabrata Lindley, Yellow rayed Lasthenia, yellow rayed goldfields, yellowray goldfields
  5. 1 2 3 4 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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