CNPS.ORG Inventory of Rare and Endangered Plants - 7th edition interface
v7-18mar 3-19-18
Status: record myosurus_minimus_ssp._apus - Sun, Dec. 5, 2021, 18:22 ET b
Myosurus minimus ssp. apus
common namelittle mousetail
CalPhotos image
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Greg Mason © 2000 Greg Mason  Follow image link for photo data.
life formannual herb
CA Rare Plant Rank
List 3.1
LIST 3: We need more information about this plant (Review List).
     0.1: Seriously endangered in California
state rank
S2      ranking system key
global rank
G5T2Q      ranking system key
Where did the "RED" code go?
CA state listingNone  
federal listingNone  
where found
MAPS - Use v8 link below.

Topographic quads (38):
Dulzura (010A) 3211667, Jamul Mountains (010B) 3211668, Otay Mesa (010C) 3211658, Otay Mountain (010D) 3211657, Imperial Beach (011D) 3211751, Del Mar (022B) 3211782, La Mesa (022D) 3211771, San Pasqual (034C) 3311618, San Luis Rey (036A) 3311723, Oceanside (036B) 3311724, Encinitas (036D) 3311713, Las Pulgas Canyon (051C) 3311734, San Clemente (052A) 3311745, San Onofre Bluff (052D) 3311735, Winchester (068A) 3311761, Romoland (068B) 3311762, Murrieta (068C) 3311752, Lake Elsinore (069A) 3311763, Wildomar (069D) 3311753, Lakeview (085D) 3311771, Riverside East (086A) 3311783, Steele Peak (086D) 3311773, Lucerne Valley (131B) 3411648, Pixley (288A) 3511983, San Luis Ranch (403A) 3712027, Arena (422C) 3712036, Gustine (423C) 3712038, Stevinson (423D) 3712037, Altamont (445B) 3712166, Clifton Court Forebay (463D) 3712175, Birds Landing (481A) 3812127, Denverton (481B) 3812128, Saxon (497B) 3812146, Elmira (498C) 3812138, Dozier (498D) 3812137, Clearlake Highlands (533B) 3812286, Manor Slough (547A) 3912223, Maxwell (562C) 3912232
quad data info

Counties, states, regions:
Alameda (ALA), Contra Costa (CCA), Colusa (COL), Lake (LAK), Merced (MER), Riverside (RIV), San Bernardino (SBD), San Diego (SDG), Solano (SOL), Tulare (TUL), Yolo (YOL), Baja California (BA), Oregon (OR)
A reminder: Species not recorded for a given area may nonetheless be present, especially where favorable conditions occur.
CNPS habitats•Valley and foothill grassland (VFGrs)
•Vernal pools (VnPls)(alkaline)
blooming period Mar-Jun  
elevation range20 - 640 meters
Move to List 1B? Reduced by vernal pool habitat loss; threatened by vehicles, grazing, development, and agriculture. Taxonomic problems; distinguishing between this taxon and M. sessilis (= M. minimus ssp. apus var. sessiliflorus in A California Flora (1959) by P. Munz) is difficult; are both rare? Plants in the Central Valley that resemble this taxon may be hybrids between M. minimus and M. sessilis; see Flora of North America 3:136 and Evolution 13:151-174 (1959) for details. See M. minimus in TJM (1993); not in TJM 2. See Bulletin of the California Academy of Sciences 1:277 (1885) for original description, and Aliso 2(4):396 (1952) for revised nomenclature.
full nameMyosurus minimus L. ssp. apus (Greene) G.R. Campbell
Version 8    INVENTORY VERSION 8 interface for this taxon, including GIS and more links

Additional information:
standard acronym  MYMIA Element Code  PDRAN0H031
CalFlora species this taxon    CalFlora genus related taxa
Jepson Online Jepson Interchange  Jepson Manual and other resources
Google search
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Suggested citation: California Native Plant Society (CNPS). 2018. Inventory of Rare and Endangered Plants (online edition, v7-18mar). California Native Plant Society. Sacramento, CA. Accessed on Sun, Dec. 5, 2021 from

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