CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-14nov 11-15-14
Status: record malacothamnus_arcuatus - Tue, Nov. 25, 2014 16:49 ET c
Malacothamnus arcuatus
common namearcuate bush-mallow
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life form evergreen shrub
CA Rare Plant Rank
List 1B.2
LIST 1B: Rare, threatened, or endangered in California and elsewhere.
     0.2: Fairly endangered in California
state rank
S1      ranking system key
global rank
G1Q      ranking system key
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
(12/2) v7 maps currently unavailable - use link below for v8 details and maps

Topographic quads (19):
Pacheco Pass (404C) 3712112, Pacheco Peak (405D) 3712113, Morgan Hill (406B) 3712126, Mount Madonna (406C) 3712116, Santa Teresa Hills (407A) 3712127, Laurel (407C) 3712118, Loma Prieta (407D) 3712117, Big Basin (408B) 3712222, Calaveras Reservoir (427A) 3712147, Milpitas (427B) 3712148, San Jose West (427C) 3712138, Palo Alto (428B) 3712242, Mindego Hill (428C) 3712232, Cupertino (428D) 3712231, Woodside (429A) 3712243, La Honda (429D) 3712233, San Francisco South (448B) 3712264, Montara Mountain (448C) 3712254, San Mateo (448D) 3712253
quad data info

Counties, states, regions:
Santa Clara (SCL), Santa Cruz (SCR), San Mateo (SMT)
counties map
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CNPS habitats•Chaparral (Chprl)
•Cismontane woodland (CmWld)
blooming period Apr-Sep  
elevation range15 - 355 meters
Threatened by alteration of fire regimes. A synonym of M. fasciculatus in The Jepson Manual. See Manual of the Botany of the Region of San Francisco Bay, p. 66 (1894) by E. Greene for original description, Leaflets of Botanical Observation and Criticism 1:208 (1906) for revised nomenclature, and Leaflets of Western Botany 6(6):132-133 (1951) for taxonomic treatment.
full nameMalacothamnus arcuatus (Greene) Greene
Version 8    INVENTORY VERSION 8 - Details for this taxon, including GIS and other links

Additional information:
standard acronym  MAAR Element Code  PDMAL0Q0E0
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
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Suggested citation: California Native Plant Society (CNPS). 2014. Inventory of Rare and Endangered Plants (online edition, v7-14nov). California Native Plant Society. Sacramento, CA. Accessed on Tue, Nov. 25, 2014 from

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