Taxon Details

Eryngium racemosum

Delta button-celery

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Taxon Summary:

Eryngium racemosum, commonly known as Delta button-celery, is a annual/perennial herb in the Apiaceae that is found only in California. It occurs within Riparian scrub, growing at elevations from 3 to 30 meters. Eryngium racemosum is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.

Lifeform: annual/perennial herb
Blooming Period: (May)Jun-Oct
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Elevation:
3 - 30 meters
10 - 100 feet
General Habitats:
  • Riparian scrub (vernally mesic clay depressions)
Microhabitat Details:
Microhabitat:
Notes:

Threatened by agriculture, non-native plants, and flood control activities. See Flora of California 2(1):659 (1936) by W.L. Jepson for original description.

Threats:

Taxonomy:
Threat List Total: 13
Total EOs % of EOs
EOs with Threat Listed: 17 65 %
THREAT LIST:
Grazing 7 26%
Non-native plant impacts 5 19%
Agriculture 4 15%
Other 3 11%
Recreational use (non-ORV) 3 11%
Total Occurrences: 26
Element Occurrence Ranks:
A B C D X U
3 7 2 1 7 6
Occurrence Status:
Historical >20 Years 22
Recent <=20 Years 4
Presence:
Presumed Extant 19
Possibly Extirpated 7
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Calaveras (CAL), Contra Costa (CCA), Merced (MER), San Joaquin (SJQ)*, Stanislaus (STA)
Quads: Name (Quad Code)
Crows Landing (3712141)*, Gustine (3712038), Jenny Lind (3812017), Lathrop (3712173)*, Peters (3712181)*, Ripon (3712162)*, Salt Spring Valley (3812016), San Luis Ranch (3712027), Sandy Mush (3712025), Stevinson (3712037), Turlock Lake (3712055), Turner Ranch (3712026), Vernalis (3712163)*, Westley (3712152)*, Woodward Island (3712185)
Notes:
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant
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