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Malacothamnus hallii
Common Name: Hall's bush-mallow
Family: Malvaceae
Element Code: PDMAL0Q0F0
Full Name: Malacothamnus hallii (Eastw.) Kearn.

2012 Aaron Arthur
Biology Glossary
Rarity Status Glossary
Occurrence Data from CDFW
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 43
  • Element Occurrence Ranks:
    A B C D X U
    3 8 5 3 1 23
  • Population Status:
    >20 yrs
    <=20 yrs
    15 28
  • Presence:
    Present Extant Possibly Extirpated Presumed Extirpated
    42 1 0
Notes Glossary
  • Threatened by development. Possibly threatened by non-native plants, and road maintenance. A synonym of M. fasciculatus in TJM (1993).
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 1974-01-01
  • Last Update: 2017-03-07
Location Glossary
  • Elevation: 10 - 760 meters
  • California Endemic: yes
  • Other States:
  • California Counties and Islands:   name (code)
    Contra Costa (CCA),  Merced (MER),  Santa Clara (SCL),  San Mateo (SMT),  Stanislaus (STA)
  • Quads:   name (DWR code) USGS code
    Los Banos Valley (384A) 3612181,  Pacheco Pass (404C) 3712112,  Mississippi Creek (405B) 3712124,  Pacheco Peak (405D) 3712113,  Morgan Hill (406B) 3712126,  Mt. Madonna (406C) 3712116,  Santa Teresa Hills (407A) 3712127,  Calaveras Reservoir (427A) 3712147,  Milpitas (427B) 3712148,  San Jose West (427C) 3712138,  San Jose East (427D) 3712137,  Lone Tree Creek (444C) 3712154,  Solyo (444D) 3712153,  Montara Mountain (448C) 3712254,  Antioch South (464A) 3712187,  Clayton (464B) 3712188,  Diablo (464C) 3712178
  • Notes:
      Definitions of codes preceding a county and/or quad:
      * Presumed extirpated
      ? Uncertain about distribution or identity
      ?* Uncertain about distribution, but presumed extirpated if once present
      (?) Occurrence confirmed, but possibly extirpated
      Species may be present in other areas where conditions are favorable. This data should NOT be substituted for pre-project review or for on-site surveys.
Presumed Extant Presumed Extirpated or Unknown 1065
Links to Leading Resources of Taxon Information
Suggested Citation
California Native Plant Society, Rare Plant Program. . Inventory of Rare and Endangered Plants of California (online edition, v8-03). Website http://www.rareplants.cnps.org [accessed ].

3612181=Los Banos Valley (384A) 3612181;3712112=Pacheco Pass (404C) 3712112;3712124=Mississippi Creek (405B) 3712124;3712113=Pacheco Peak (405D) 3712113;3712126=Morgan Hill (406B) 3712126;3712116=Mt. Madonna (406C) 3712116;3712127=Santa Teresa Hills (407A) 3712127;3712147=Calaveras Reservoir (427A) 3712147;3712148=Milpitas (427B) 3712148;3712138=San Jose West (427C) 3712138;3712137=San Jose East (427D) 3712137;3712154=Lone Tree Creek (444C) 3712154;3712153=Solyo (444D) 3712153;3712254=Montara Mountain (448C) 3712254;3712187=Antioch South (464A) 3712187;3712188=Clayton (464B) 3712188;3712178=Diablo (464C) 3712178