Species Details

Scheuchzeria palustris

American scheuchzeria

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Classification

Scientific Name: Scheuchzeria palustris L.
Common Name: American scheuchzeria
Family:	Scheuchzeriaceae
Element Code:	PMSCH02010
USDA Plants Symbol:	SCPA2
Synonyms/Other Names: Scheuchzeria palustris var. americana

Conservation Status

CA Rare Plant Rank:	2B.1
Fed List:	None
State List:	None
Global Rank:	G5
State Rank:	S1
Other Status:	USFS_S
CRPR Changes: changed from 2.1 to 2B.1 on 2013-06-12
Add Date:	1974-01-01
Date Edited:	2021-05-26

Ecology and Life History

Lifeform: perennial rhizomatous herb (emergent)

Blooming Period: Jul-Aug

Elevation:
1370 - 2000 meters
4495 - 6560 feet

General Habitats:

Bogs and fens
Marshes and swamps (lake margins)

Microhabitat Details:

Microhabitat:

Notes

Notes: Rediscovered in 1988 by V. Oswald at Willow Lake. Need historical quads for SIE Co. Threatened by logging, foot traffic, trampling, and hydrological alteration. Threatened in ID, and endangered in OR. See Fremontia 20(4):19-20 (1992) for information on rediscovery in CA.
Threats:
Taxonomy:

Threat List Data from the CNDDB

THREAT LIST:
Threat List Total:	6
	Total EOs	% of EOs
EOs with Threat Listed:	4	80 %
Foot traffic/trampling	2	40%
Grazing	2	40%
Other	2	40%
Recreational use (non-ORV)	1	20%
Altered flood/tidal/hydrologic regime	1	20%
Dam/Inundation	1	20%

Occurrence Data from the CNDDB

Element Occurrence Ranks:
Total Occurrences:					5
A	B	C	D	X	U
3	1	0	0	1	0

Occurrence Status:
Historical >20 Years	2
Recent <=20 Years	3

Presence:
Presumed Extant	4
Possibly Extirpated	0
Presumed Extirpated	1

Location

California Endemic:

California Island:

States: Name (Code)
Alaska (AK), California (CA), Connecticut (CT), Idaho (ID), Illinois (IL), Indiana (IN), Iowa (IA), Maine (ME), Massachusetts (MA), Michigan (MI), Minnesota (MN), Montana (MT), New Hampshire (NH), New Jersey (NJ), New Mexico (NM), New York (NY), North Dakota (ND), Ohio (OH), Oregon (OR), Pennsylvania (PA), Rhode Island (RI), Vermont (VT), Virginia (VA), Washington (WA), West Virginia (WV), Wisconsin (WI), Wyoming (WY)

California Counties and Islands: Name (Code)
Plumas (PLU)

Quads: Name (Quad Code)
Almanor (4012122)*, Mt. Harkness (4012143), Reading Peak (4012144), Red Cinder (4012142)

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

Presumed Extant

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CNPS Rare Plant Inventory