CPC Plant Profile: San Diego Button-celery
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Plant Profile

San Diego Button-celery (Eryngium aristulatum var. parishii)

This shot shows the stems of this biennial. Photo Credit: Dylan Hannon
Description
  • Global Rank: T1 - Critically Imperiled
  • Legal Status: Federally Endangered
  • Family: Apiaceae
  • State: CA
  • Nature Serve ID: 148040
  • Date Inducted in National Collection: 04/04/1991

San Diego button celery is an annual herb from the parsley family and is often recognized by its low spreading appearance and greenish flowers. It once occurred in many vernal pool systems, but by the late 1980's 23% of vernal pool systems had been destroyed, leaving remaining populations impoverished. Vernal pools, one of California's most threatened habitats, are natural depressions that fill with water during the winter and spring and dry up during the summer. Plants that live in the vernal pool ecosystem are specifically adapted to their ephemeral pool environment. The pools are too wet in winter for upland plants and too dry in summer for aquatic plants. Like other vernal pool plant species, Eryngium aristulatum germinates during the flooding period and blooms as the pools dries.

Participating Institutions
Updates
  • 09/01/2020
  • Orthodox Seed Banking

Based on an September 2020 extract of the California Plant Rescue Database, San Diego Zoo Global holds 5 accessions of Eryngium aristulatum var. parishii in orthodox seed collection. There are as many as 180181 seeds of this species in their collection - although some may have been used for curation testing or sent to back up.

  • 09/01/2020
  • Orthodox Seed Banking

Based on an September 2020 extract of the California Plant Rescue Database, California Botanic Garden holds 14 accessions of Eryngium aristulatum var. parishii in orthodox seed collection. There are as many as 206126 seeds of this species in their collection - although some may have been used for curation testing or sent to back up.

  • 08/05/2020
  • Seed Collection

Based on an August 2020 extract of the California Plant Rescue Database, San Diego Zoo Global has collected 5 seed accessions of Eryngium aristulatum var. parishii from 5 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass 348 maternal plants

  • 08/05/2020
  • Seed Collection

Based on an August 2020 extract of the California Plant Rescue Database, California Botanic Garden has collected 14 seed accessions of Eryngium aristulatum var. parishii from 9 plant occurrences listed in the California Natural Diversity Database. These collections together emcompass 61 maternal plants

Nature Serve Biotics
  • 05/02/2017

Eryngium aristulatum var. parishii is a vernal pool species occuring in California and extending south into Baja California, Mexico. Vernal pool habitat loss is the greatest threat to this species in California, followed by secondary threats: dumping, trampling, runoff, vehicle traffic and nonnative species. The threats to this species in Mexico are not known, however, given the urbanization occurring in Baja California, Mexico habitat loss there is probable.

  • 01/01/2010

Threats include urban and agricultural development, alteration of drainage patterns, mowing and livestock grazing, off-road vehicles, trash dumping, and competition from weedy, non-native plants.

  • 01/01/2010

This species is known only from 4 populations on the Santa Rosa Plateau containing fewer then 1,000 individuals. (Dudeck and Associates Inc. 1999)

  • 01/01/2010

In 1993, Rancho Santa Ana Botanic Garden created 30 small vernal pools as part of their plant display as well as part of a long term gene flow study by the Garden's Research Department and Endangered Species Program. Artificial vernal pools have also been created by the University of California's Botanic Garden. Because these pools require careful tending it has been concluded that recreated pools are not self-sustaining and therefore not a viable option to replace the loss of naturally occurring vernal pools.

  • 01/01/2010

Under the terms of a settlement agreement approved Monday, July 23, 2001 by the U.S. District Court in Sacramento, the U.S. Fish and Wildlife Service (Service) will map critical habitat for 15 endangered and threatened species that are dependent on vernal pool wetlands in California. The critical habitat designation will add protection to California's remaining vernal pool habitat. All four remaining populations and substantial habitat that may support this species are preserved within the Santa Rosa Plateau Preserve. (Dudeck and Associates Inc. 1999)

  • 01/01/2010

Population monitoring, reproductive/seed biology and general ecology of vernal pool dynamics would aid in the conservation of this and associated species.

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Photos
Nomenclature
Taxon Eryngium aristulatum var. parishii
Authority (Coult. & Rose) Mathias & Constance
Family Apiaceae
CPC Number 1816
ITIS 528066
USDA ERARP
Common Names San Diego button-celery | San Diego coyote-thistle
Associated Scientific Names Eryngium aristulatum var. parishii | Eryngium aristulatum ssp. parishii
Distribution Santa Rosa Plateau in Riverside County.
State Rank
State State Rank
California S1
Habitat

Found in vernal pool systems and salt marshes.San Diego button-celery (Eryngium aristulatum) is associated with other endangered Vernal Pool species including, Burke's goldfields (Lasthenia burkei, California Orcutt grass (Orcuttia californica), San Diego mesa mint (Pogogyne abramsii) and Sebastopol Meadowfoam (Limnanthes vinculans).

Ecological Relationships

None known.

Pollinators
Common Name Name in Text Association Type Source InteractionID
Bees
Masked bees Hylaeus episcopalis espiscopalis Suspected Pollinator Floral Link
Masked bees Hylaeus polifolii Suspected Pollinator Floral Link
Masked bees Hylaeus comspicious Suspected Pollinator Floral Link
Masked bees Hylaeus mesillae cressoni Suspected Pollinator Floral Link
Leaf-cutting bees Heriades occidentalis Suspected Pollinator Floral Link
Leaf-cutting bees Ashmeadiella cactorum basalis Suspected Pollinator Floral Link
Leaf-cutting bees Megachile brevis onobrychidis Suspected Pollinator Floral Link
Anthophorine bees Anthophora urbana urbana Suspected Pollinator Floral Link
Centris bees Ceratina acanthi Suspected Pollinator Floral Link

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