Triglochin concinna var. concinna

seaside arrow-grass, slender arrow-grass

Family:Juncaginaceae

Rarity

CNPS-EB: A2

5 current natural populations

Criteria:

Limited/Threatened Habitat
Narrow Range in ALA & CCA

Observations

Key

Ecology

Habitats:

Salt Marsh

All Triglochin

T. concinna var. concinna
T. scilloides (C)
T. striata (B)

References

Populations

Key

Location	Pop ID	Last Recorded	Notes
Albany Shoreline	12	2022-03-05
Emeryville	9	2017-04-05
Oakland - other or unknown sites	10	2022-04-06
Pt. Molate	11	2025-06-03
San Leandro Bay	7	2002-07-30
Alameda Shore	1	1920-12-31	Historic
Berkeley, West	2	1923-04-19	Historic
Emeryville	3	1994-09-23	Historic
Emeryville	8	1880-12-31	Historic
Newark	4	1895-12-31	Historic
Oakland Shoreline	5	1880-12-31	Historic
San Francisco Bay National Wildlife Refuge	6	1991-06-30	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.