CNPS

CNPS Rare Plant Inventory

Species Details

Calamagrostis ophitidis

serpentine reed grass

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  Classification

Scientific Name:
Calamagrostis ophitidis (J.T. Howell) Nygren
Common Name:
serpentine reed grass
Family: Poaceae
Element Code: PMPOA170V0
USDA Plants Symbol: CAOP2
Synonyms/Other Names:

  Conservation Status

CA Rare Plant Rank: 4.3
Fed List: None
State List: None
Global Rank: G3
State Rank:
 S3
Other Status:
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2021-09-27

  Ecology and Life History

Lifeform: perennial herb
Blooming Period: Apr-Jul
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Elevation:
90 - 1065 meters
295 - 3495 feet
General Habitats:
  • Chaparral (openings, often north-facing slopes)
  • Lower montane coniferous forest
  • Meadows and seeps
  • Valley and foothill grassland
Microhabitat Details:
Microhabitat:
  • Rocky
  • Serpentine

  Notes

Notes:
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)
California (CA)
California Counties and Islands: Name (Code)
Lake (LAK), Marin (MRN), Mendocino (MEN), Napa (NAP), Sonoma (SON)
Quads: Name (Quad Code)
Bolinas (3712286), Calistoga (3812255), Camp Meeker (3812248), Chiles Valley (3812253), Cloverdale (3812371), Fort Ross (3812352), Guerneville (3812258), Jimtown (3812267), Kenwood (3812245), Middletown (3812275), San Geronimo (3812216), San Quentin (3712284), San Rafael (3712285), St. Helena (3812254), The Geysers (3812277), Whispering Pines (3812276)
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 12 November 2024].