CNPS

CNPS Rare Plant Inventory

Species Details

Arctostaphylos montereyensis

Toro manzanita

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Photo of Arctostaphylos montereyensis
© 2018 Susan McDougall 		Photo of Arctostaphylos montereyensis
© 2018 Susan McDougall 		Photo of Arctostaphylos montereyensis
© 2011 David Graber

  Classification

Scientific Name:
Arctostaphylos montereyensis Hoov.
Common Name:
Toro manzanita
Family: Ericaceae
Element Code: PDERI040R0
USDA Plants Symbol: ARMO6
Synonyms/Other Names:

  Conservation Status

CA Rare Plant Rank: 1B.2
Fed List: None
State List: None
Global Rank: G2?
State Rank:
 S2?
Other Status: BLM_S; SB_SBBG
CRPR Changes:
Add Date: 1974-01-01
Date Edited: 2022-02-01

  Ecology and Life History

Lifeform: perennial evergreen shrub
Blooming Period: Feb-Mar
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Elevation:
30 - 730 meters
100 - 2395 feet
General Habitats:
  • Chaparral (maritime)
  • Cismontane woodland
  • Coastal scrub
Microhabitat Details:
Microhabitat:
  • Sandy

  Notes

Notes:
Known from fewer than 20 occurrences. Threatened by development. See Leaflets of Western Botany 10:88 (1964) for original description.
Threats:
Taxonomy:

  Threat List Data from the CNDDB

Threat List Total: 2
Total EOs % of EOs
EOs with Threat Listed: 3 17 %
THREAT LIST:
Development 3 16%
Non-native plant impacts 1 5%

  Occurrence Data from the CNDDB

Total Occurrences: 18
Element Occurrence Ranks:
A B C D X U
1 0 0 0 1 16
Occurrence Status:
Historical >20 Years 14
Recent <=20 Years 4
Presence:
Presumed Extant 17
Possibly Extirpated 0
Presumed Extirpated 1

  Location

California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Monterey (MNT)
Quads: Name (Quad Code)
Carmel Valley (3612146), Chualar (3612155), Marina (3612167), Monterey (3612158), Salinas (3612166), Seaside (3612157), Spreckels (3612156)
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 18 December 2024].