Puccinellia simplex

little alkali grass

Family:Poaceae

Rarity

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

8 current natural populations

Criteria:

Limited/Threatened Habitat
Narrow Range in ALA & CCA

Observations

CNPS-EB Database ⓘ
Calflora (group) ⓘ
Calflora (public)
iNaturalist
- Genus Puccinellia
- Puccinellia simplex
CCH2

Key

Ecology

Flowers March - May

Habitats:

Alkali Areas

All Puccinellia

P. nutkaensis (A1x)
P. nuttalliana (A1)
P. simplex

References

Populations

Key

Location	Pop ID	Last Recorded	Notes
Byron - other or unknown sites	3	2022-03-17
Garaventa Wetlands Preserve	7	2023-07-29
Livermore - other or unknown sites	12	2025-06-03
Los Vaqueros Watershed	5	2025-03-16
Springtown Wetlands Preserve	6	2025-04-24
Springtown Wetlands Preserve	10	2024-05-06
Vasco Hills	9	2023-04-07
Warm Springs, Fremont	8	2019-05-20
Bethany Reservoir - S of Byron	2	1986-04-15	Historic
Brushy Peak - EBRPD	1	2000-12-31	Historic
Brushy Peak - EBRPD	11	2024-05-20	ID Uncertain
Byron Hot Springs area	4	1990-04-10	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.