Species Details

Schoenoplectiella saximontana

Rocky Mountain bulrush

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Steve Matson

Classification

Scientific Name: Schoenoplectiella saximontana (Fernald) Lye
Common Name: Rocky Mountain bulrush
Family:	Cyperaceae
Element Code:	PMCYP0Q1D0
USDA Plants Symbol:	SCSA11
Synonyms/Other Names:

Conservation Status

CA Rare Plant Rank:	2B.1
Fed List:	None
State List:	None
Global Rank:	G5
State Rank:	S2
Other Status:
CRPR Changes: added to 2B.1 on 2024-04-11
Add Date:	2024-04-11
Date Edited:	2024-11-05

Ecology and Life History

Lifeform: annual rhizomatous herb

Blooming Period: (Mar-May)Jun-Sep(Oct)

Elevation:
45 - 720 meters
150 - 2360 feet

General Habitats:

Marshes and swamps (margins)
Vernal pools

Microhabitat Details: Freshwater edges, ponds, and ditch margins.

Microhabitat:

Sandy (often)

Notes

Notes:
Threats: Threatened by development, hydrological alterations, inundation, disking, equestrians, vehicles, and non-native plants.
Taxonomy: Differs from Schoenoplectus s.l. taxa in California by its tufted habit with obscured rhizomes (vs. mat-forming with long rhizomes), height of less than 60 cm, cylindric stems (vs. 3-sided at least near inflorescences) less than or equal to 1.5 mm (vs. 2–10 mm) in diameter, unnotched flower bract tips, 1–20 spreading spikelets (vs. 1 erect spikelet), and fruits with sharp and wavy transverse ridges (vs. smooth fruits).

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	0
	Total EOs	% of EOs
EOs with Threat Listed:	0	0 %

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					0
A	B	C	D	X	U
0	0	0	0	0	0

Occurrence Status:
Historical >20 Years	0
Recent <=20 Years	0

Presence:
Presumed Extant	0
Possibly Extirpated	0
Presumed Extirpated	0

Location

California Endemic:

California Island:

States: Name (Code)
California (CA), Colorado (CO), Kansas (KS), Missouri (MO), Nebraska (NE), Ohio (OH), Oklahoma (OK), South Dakota (SD), Texas (TX), Utah (UT), Washington (WA), Wyoming (WY)

California Counties and Islands: Name (Code)

Quads: Name (Quad Code)

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.

Regional Map

Map

No Counties to display. No Quads to display.

Presumed Extant

Click on quad for name. Hold Shift Key to use mouse scroll wheel

Selected References

CNPS Status Review:	Proposed addition to CRPR 2B.1, G4G5 / S2 (2024)
Original Description:	Rhodora 3(34): 251 (1901)
Revised Nomenclature:	Lidia 6(1): 27 (2003)