CNPS

CNPS Rare Plant Inventory

Species Details

Equisetum palustre

marsh horsetail

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  Classification

Scientific Name:
Equisetum palustre L.
Common Name:
marsh horsetail
Family: Equisetaceae
Element Code: PPEQU01050
USDA Plants Symbol: EQPA
Synonyms/Other Names:

  Conservation Status

CA Rare Plant Rank: 3
Fed List: None
State List: None
Global Rank: G5
State Rank:
 S1S3
Other Status:
CRPR Changes:
Add Date: 1994-01-01
Date Edited: 2021-05-26

  Ecology and Life History

Lifeform: perennial rhizomatous herb
Blooming Period: Unk
JFMAMJJASOND
Elevation:
45 - 1000 meters
150 - 3280 feet
General Habitats:
  • Marshes and swamps
Microhabitat Details:
Microhabitat:

  Notes

Notes:
Move to List 2? Location, rarity, and endangerment information needed; need quads for LAK and SMT counties. Scarcity poorly understood. NAP Co. occurrence (532C) located in 1994 is perhaps only the second confirmed in CA.
Threats:
Taxonomy:

  Threat List Data from the CNDDB

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

  Occurrence Data from the CNDDB

Total Occurrences: 0
Element Occurrence Ranks:
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)
Alaska (AK), California (CA), Connecticut (CT), Idaho (ID), Maine (ME), Massachusetts (MA), Michigan (MI), Minnesota (MN), Montana (MT), New Hampshire (NH), New York (NY), North Dakota (ND), Ohio (OH), Oregon (OR), South Dakota (SD), Vermont (VT), Washington (WA), Wisconsin (WI)
California Counties and Islands: Name (Code)
Napa (NAP), San Francisco (SFO)
Quads: Name (Quad Code)
Jericho Valley (3812274), San Francisco North (3712274)
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
Click on quad for name. Hold Shift Key to use mouse scroll wheel

  Selected References

Suggested Citation:
California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5). Website https://www.rareplants.cnps.org [accessed 23 November 2024].