Species Details
Arctostaphylos myrtifolia
Ione manzanita
View Report Copy Link Calflora eFlora CCH CalPhotos iNaturalist
© 2006 Steve Matson |
© 2006 Steve Matson |
© 2019 Cristian Singer |
Species Description:
Arctostaphylos myrtifolia, commonly known as Ione manzanita, is a perennial evergreen shrub in the Ericaceae that is found only in California. It occurs within Chaparral, and Cismontane woodland, growing at elevations from 60 to 580 meters. Arctostaphylos myrtifolia is ranked 1B.2, Plants Rare, Threatened or Endangered in California and Elsewhere; Moderately threatened in California.|
Scientific Name: Arctostaphylos myrtifolia Parry |
||
|
Common Name: Ione manzanita |
||
| Family: | Ericaceae | |
| Element Code: | PDERI04240 | |
| USDA Plants Symbol: | ARMY | |
|
Synonyms/Other Names: |
||
| Name Status: |
JEP, FNA, POWO, IPNI, Tropicos |
|
| CA Rare Plant Rank: | 1B.2 |
| Fed List: | FT (1999-05-26) |
| State List: | None |
| Global Rank: | G1 |
|
State Rank: |
S1 |
| Other Status: | SB_UCBG |
|
CRPR Changes: |
|
| Add Date: | 1974-01-01 |
| Date Edited: | 2022-10-04 |
| Lifeform: perennial evergreen shrub | ||||||||||||||
Blooming Period: Nov-Mar
|
||||||||||||||
|
Elevation:
60 - 580 meters 195 - 1905 feet |
||||||||||||||
General Habitats:
|
||||||||||||||
| Microhabitat Details: Ione soil | ||||||||||||||
Microhabitat:
|
||||||||||||||
|
Notes: Protected in part at Ione Manzanita ACEC (BLM) and Apricum Hill ER (CDFW), both in AMA Co. |
|
|
Threats: Threatened by erosion, mining, development, and fungal infection. |
|
|
Taxonomy: 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. |
|
| Threat List Total: | 8 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 7 | 64 % |
| THREAT LIST: | ||
|---|---|---|
| Mining | 6 | 54% |
| Development | 4 | 36% |
| Road/trail construction/maint. | 4 | 36% |
| Disease | 3 | 27% |
| ORV activity | 3 | 27% |
| Grazing | 1 | 9% |
| Vandalism/dumping/litter | 1 | 9% |
| Agriculture | 1 | 9% |
| Total Occurrences: | 11 | ||||
| Element Occurrence Ranks: | |||||
|---|---|---|---|---|---|
| A | B | C | D | X | U |
| 1 | 5 | 0 | 0 | 0 | 5 |
| Occurrence Status: | |||||
|---|---|---|---|---|---|
| Historical >20 Years | 5 | ||||
| Recent <=20 Years | 6 | ||||
| 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:
|
|||||||||||||
Presumed Extant
Click on quad for name. Hold Shift Key to use mouse scroll wheel