Eryngium spinosepalum

Family:Apiaceae

Rarity

CNPS-EB: *A2
State CNPS: 1B.2
Global Rank: G2
CNDDB Rank: S2

6 current natural populations

Criteria:

N Limit
W Limit

Observations

CNPS-EB Database ⓘ
Calflora (group) ⓘ
Calflora (public)
iNaturalist
- Genus Eryngium
- Eryngium spinosepalum
CCH2

Key

Ecology

Flowers April - June

Habitats:

Grassland (Annual or Perennial)
Vernal Pool

All Eryngium

References

Synonyms

Eryngium vaseyi var. globosum

Populations

Key

Location	Pop ID	Last Recorded	Notes
Byron - other or unknown sites	2	2025-05-26
Byron - other or unknown sites	6	2022-07-22
Byron - other or unknown sites	7	2025-03-09
Byron - other or unknown sites	10	2024-07-31
Byron Hot Springs area	1	2007-05-01
Los Vaqueros Watershed	11	2025-04-14
Bethany Reservoir - S of Byron	8	1984-07-18	Historic
Byron - other or unknown sites	5	1937-06-12	Historic
Byron Hot Springs area	3	1989-03-28	Historic
Byron Hot Springs area	4	1989-03-28	Historic
Marsh Creek Road	9	1935-04-07	Historic

The list of populations shows the distinct populations identified by the CNPS-EB Rare and Unusual Plants Committee. The locations in this list are very general. More specific location details can be obtained from the links in the Observations section (for some of these links, a login is required).

Font

Populations in bold type have precise coordinates available for field volunteers and researchers.

Populations in normal type are only known from a description of the location; no precise coordinates are available.

Background

Populations with a white background have been observed in the last 25 years.

Populations with a blue background have not been observed for at least 25 years.

Populations with an orange background have an uncertain location or identification, or are planted.

Columns

Pop ID is a label that identifies the population. Many locations have more than one population of a species, and the population ID is used to distinguish them.