Taxon Details
Malacothamnus mendocinensis
Mendocino bushmallow
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Taxon Summary:
Malacothamnus mendocinensis, commonly known as Mendocino bushmallow, is a perennial deciduous shrub in the Malvaceae that is found only in California. It occurs within Chaparral, and Cismontane woodland, growing at elevations from 215 to 230 meters. Malacothamnus mendocinensis is ranked 1B.1, Plants Rare, Threatened or Endangered in California and Elsewhere; Seriously threatened in California.
Scientific Name: Malacothamnus mendocinensis (Eastw.) Kearn. |
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Common Name: Mendocino bushmallow |
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Family: | Malvaceae | |
Element Code: | PDMAL0Q0D0 | |
USDA Plants Symbol: | ||
Synonyms/Other Names: |
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Name Status: |
JEF, FNA, POWO, IPNI, Tropicos |
CA Rare Plant Rank: | 1B.1 |
Fed List: | None |
State List: | None |
Global Rank: | G1Q |
State Rank: |
S1 |
Other Status: | |
CRPR Changes: changed from 1A to 1B.1 on 2023-01-20 |
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Add Date: | 1974-01-01 |
Date Edited: | 2024-06-04 |
Lifeform: perennial deciduous shrub | ||||||||||||||
Blooming Period: Jun-Aug
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Elevation:
215 - 230 meters 705 - 755 feet |
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General Habitats:
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Microhabitat Details: | ||||||||||||||
Microhabitat:
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Notes: Rediscovered at Lake Mendocino in 2016 by J. Xerogeanes. Originally known from only two historical collections near Ukiah (last in 1939). Reason for disappearance likely due to lack of wildfire. |
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Threats: Highly threatened by inundation, fire suppression, and recreational activities. Possibly threatened by road maintenance, herbivory, and competition with weeds. |
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Taxonomy: A synonym of M. fasciculatus in TJM (1993). Not recognized in TJM 2 2012 but recognized in Jepson eFlora 2023 treatment. Current research indicates M. mendocinensis is separated morphologically and phylogenetically from other species in the genus. |
Threat List Total: | 5 | |
Total EOs | % of EOs | |
EOs with Threat Listed: | 2 | 100 % |
THREAT LIST: | ||
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Dam/Inundation | 1 | 50% |
Improper burning regime | 1 | 50% |
Non-native plant impacts | 1 | 50% |
Other | 1 | 50% |
Road/trail construction/maint. | 1 | 50% |
Total Occurrences: | 2 | ||||
Element Occurrence Ranks: | |||||
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A | B | C | D | X | U |
0 | 0 | 0 | 1 | 1 | 0 |
Occurrence Status: | |||||
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Historical >20 Years | 1 | ||||
Recent <=20 Years | 1 |
Presence: | |||||
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Presumed Extant | 1 | ||||
Possibly Extirpated | 0 | ||||
Presumed Extirpated | 1 |
California Endemic: | |||||||||||||
California Island: | |||||||||||||
States: Name (Code) California (CA) |
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California Counties and Islands: Name (Code) Mendocino (MEN)* |
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Quads: Name (Quad Code) Elledge Peak (3912312)*, Ukiah (3912322) |
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Notes:
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Presumed Extant
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