Species Details
Arctostaphylos myrtifolia
Ione manzanita
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© 2006 Steve Matson |
© 2006 Steve Matson |
© 2019 Cristian Singer |
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Scientific Name: Arctostaphylos myrtifolia Parry |
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Common Name: Ione manzanita |
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| Family: | Ericaceae | |
| Element Code: | PDERI04240 | |
| USDA Plants Symbol: | ARMY | |
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Synonyms/Other Names: |
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| CA Rare Plant Rank: | 1B.2 |
| Fed List: | FT (1999-05-26) |
| State List: | None |
| Global Rank: | G1 |
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State Rank: |
S1 |
| Other Status: | SB_UCBG |
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CRPR Changes: |
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| Add Date: | 1974-01-01 |
| Date Edited: | 2022-10-04 |
| Lifeform: perennial evergreen shrub | ||||||||||||||
Blooming Period: Nov-Mar
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Elevation:
60 - 580 meters 195 - 1905 feet |
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General Habitats:
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| Microhabitat Details: Ione soil | ||||||||||||||
Microhabitat:
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Notes: Protected in part at Ione Manzanita ACEC (BLM) and Apricum Hill ER (CDFW), both in AMA Co. |
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Threats: Threatened by erosion, mining, development, and fungal infection. |
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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. |
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| Threat List Total: | 8 | |
| Total EOs | % of EOs | |
| EOs with Threat Listed: | 7 | 64 % |
| THREAT LIST: | ||
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| 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: | |||||
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| A | B | C | D | X | U |
| 1 | 5 | 0 | 0 | 0 | 5 |
| Occurrence Status: | |||||
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| Historical >20 Years | 5 | ||||
| Recent <=20 Years | 6 | ||||
| Presence: | |||||
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| Presumed Extant | 11 | ||||
| Possibly Extirpated | 0 | ||||
| Presumed Extirpated | 0 | ||||
| California Endemic: | |||||||||||||
| California Island: | |||||||||||||
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States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Amador (AMA), Calaveras (CAL) |
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Quads: Name (Quad Code) Carbondale (3812141), Ione (3812038), Irish Hill (3812048), Mokelumne Hill (3812036), San Andreas (3812026), Valley Springs (3812027), Wallace (3812028) |
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Notes:
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Presumed Extant
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