Erigeron serpentinus

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Erigeron serpentinus
Status TNC G2.svg
Imperiled  (NatureServe) [1]
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Genus: Erigeron
Species:
E. serpentinus
Binomial name
Erigeron serpentinus

Erigeron serpentinus is a rare species of flowering plant in the family Asteraceae known by the common names serpentine fleabane and serpentine daisy. It is endemic to Sonoma County, California, where it is known from three occurrences in and around The Cedars, [2] in the Coast Ranges east of Salt Point and west of Healdsburg. [3] [4] [5] There are an estimated 1100 individuals in existence. [1] The Cedars is a canyon habitat with serpentine soils surrounded by non-serpentine terrain; it is home to several rare serpentine-endemic plant species. [6] This daisy was discovered there and described to science in 1992. [7]

Erigeron serpentinus is a perennial herb producing an upright stem up to 50 centimeters (20 inches) long from a taproot and caudex unit. The linear leaves are up to 4 centimeters (1.6 inches) long and under a millimeter wide. The inflorescence is a solitary flower head or a cluster of 2–4 heads. Each has 9–13 white ray florets 7 or 8 millimeters in length which turn blue as they dry. These surround numerous yellow disc florets. [8] [9]

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<i>Erigeron eatonii</i> Species of flowering plant

Erigeron eatonii is a North American species of flowering plants in the family Asteraceae known by the common name Eaton's fleabane.

<i>Erigeron inornatus</i> Species of flowering plant

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<i>Erigeron parishii</i> Species of flowering plant

Erigeron parishii is a species of flowering plant in the family Asteraceae known by the common names Parish's daisy and Parish's fleabane.

<i>Erigeron strigosus</i> Species of plant

Erigeron strigosus is a species of flowering plant in the family Asteraceae known by the common names prairie fleabane, common eastern fleabane, and daisy fleabane.

<i>Erigeron petrophilus</i> Species of flowering plant

Erigeron petrophilus is a species of flowering plant in the family Asteraceae known by the common names rockloving erigeron or cliff fleabane. It is native to the mountain ranges of California from Siskiyou County south as far as San Luis Obispo County and El Dorado County. It also grows in southwestern Oregon.

<i>Erigeron reductus</i> Species of flowering plant

Erigeron reductus is a species of flowering plant in the family Asteraceae known by the common name lesser California rayless fleabane. It is endemic to California, from Trinity County south as far as Alameda County and El Dorado County.

Erigeron supplex is a rare species of flowering plant in the family Asteraceae known by the common names supple daisy or supple fleabane. It grows along the coastline and in the Coast Ranges in California, north of San Francisco Bay. It probably remains only in Sonoma and Marin Counties. There is a report of it growing well inland in Shasta County, but this is from a farm and probably a cultivated specimen.

<i>Erigeron maniopotamicus</i> Species of flowering plant

Erigeron maniopotamicus is a rare species of flowering plant in the family Asteraceae known by the common name Mad River fleabane. It is endemic to northwestern California, where it is known from only four locations in Humboldt and Trinity Counties.

Erigeron piscaticus is a rare species of flowering plant in the family Asteraceae known by the common name Fish Creek fleabane. It is endemic to Arizona in the United States, where it is known from three locations in Maricopa and Graham Counties.

Erigeron kachinensis is a species of flowering plant in the family Asteraceae known by the common names Kachina fleabane and Kachina daisy. It is native to Utah and Colorado in the United States. It is an endemic of the Colorado Plateau.

Erigeron anchana, the Sierra Ancha fleabane, is a rare Arizona species of flowering plant in the family Asteraceae. It has been found only on cliff faces and in rocky areas in central Arizona. The name "anchana" refers to a mountain range called Sierra Ancha in Gila County, Arizona.

Erigeron arisolius is a species of flowering plant in the family Asteraceae known by the common names arid throne fleabane and dry-sun fleabane. It is native to the southwestern United States (Arizona) and northwestern Mexico (Sonora).

Erigeron greenei is a North American species of flowering plant in the family Asteraceae known by the common name Greene's narrow-leaved daisy .

Erigeron klamathensis is a North American species of flowering plant in the family Asteraceae known by the common name Klamath fleabane or Klamath daisy. It had been collected by botanists for many years and generally regarded as part of E. foliosus. It was not recognized as a distinct species until 2004.

Erigeron lackschewitzii is a rare species of flowering plant in the family Asteraceae known by the common name Lackschewitz's fleabane. It is native to the Rocky Mountains in the Canadian province of Alberta and the US state of Montana.

Erigeron robustior is a North American species of flowering plant in the family Asteraceae known by the common name white cushion fleabane or Willamette fleabane. It is native to the southwestern Oregon and northern California in the western United States.

Erigeron saxatilis is a rare North American species of flowering plant in the family Asteraceae known by the common name rock fleabane. It has been found only in northern Arizona, in Yavapai and Coconino Counties north of the Mogollon Rim.

Erigeron vicinus is a North American species of flowering plant in the family Asteraceae known by the common names neighbor fleabane and border fleabane. It grows in north-central Mexico and in western Texas in the United States. Some of the populations lie inside Big Bend National Park.

References

  1. 1 2 NatureServe (7 April 2023). "Erigeron serpentinus". NatureServe Network Biodiversity Location Data accessed through NatureServe Explorer. Arlington, Virginia: NatureServe. Retrieved 29 April 2023.
  2. "Sonoma County Community Wildfire Protection Plan" (PDF). Fire Safe Sonoma. Archived from the original (PDF) on 2017-12-13.
  3. California Native Plant Society Rare Plant Profile
  4. Calflora taxon report, University of California, Erigeron serpentinus G. Nesom serpentine daisy, serpentine erigeron
  5. Nesom, Guy L. 1992. Phytologia 72(3): map 1, page 164 distribution map showing Erigeron serpentinus and several other species
  6. Raiche, R. (2009). The Cedars: Sonoma County's Hidden Treasure. Fremontia 37:2 3.
  7. Nesom, G. L. (1992). Revision of Erigeron sect. Linearifolii (Asteraceae: Astereae). Phytologia 72 157–208.
  8. Flora of North America, Erigeron serpentinus G. L. Nesom, 1992. Serpentine fleabane
  9. Nesom, Guy L. 1992. Phytologia 72(3): 203–204 diagnosis in Latin, description and commentary in English