Species Details

Arctostaphylos myrtifolia

Ione manzanita

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Photo by © 2006 Steve Matson  max-height:128px; max-width:145px;
© 2006 Steve Matson
Photo by © 2006 Steve Matson  max-height:128px; max-width:145px;
© 2006 Steve Matson
Photo by © 2019 Cristian Singer  max-height:128px; max-width:145px;
© 2019 Cristian Singer
Scientific Name:
Arctostaphylos myrtifolia Parry
Common Name:
Ione manzanita
Family: Ericaceae
Element Code: PDERI04240
USDA Plants Symbol: ARMY
Synonyms/Other Names:
Lifeform: perennial evergreen shrub
Blooming Period: Nov-Mar
Elevation:
60 - 580 meters
195 - 1905 feet
General Habitat:
  • Chaparral
  • Cismontane woodland
General Micro Habitat: Ione soil
Micro Habitat:
  • Acidic
  • Clay (sometimes)
  • Sandy (sometimes)
Notes:
Threatened by erosion, mining, development and fungal infection. Protected in part at Ione Manzanita ACEC (BLM) and Apricum Hill ER (DFG), both in AMA Co. See Pittonia 1:34 (1887) for original description, Ecology 45(4):792-808 (1964) for ecological discussion, and Changing Seasons 1(4):4-19 (1982) for species account.
Threats:
Taxonomy:
Other:
Total Occurrences: 11
Element Occurrence Ranks:
A B C D X U
1 5 0 0 0 5
Occurrence Status:
Historical >20 Years 4
Recent <=20 Years 7
Presence:
Presumed Extant 11
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA)
California Counties and Islands: Name (Code)
Amador (AMA), Calaveras (CAL)
Quads: Name (Quad Code)
Carbondale (3812141), Ione (3812038), Irish Hill (3812048), Mokelumne Hill (3812036), San Andreas (3812026), Valley Springs (3812027), Wallace (3812028)
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.

Map

Presumed Extant
Counties   Quads