Species Details

Montia howellii

Howell's montia

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Photo of Montia howellii
© 2004 Dean Wm. Taylor
Photo of Montia howellii
© 2004 Dean Wm. Taylor
Photo of Montia howellii
© 2015 Adrienne Simmons
CA Rare Plant Rank: 2B.2
Fed List: None
State List: None
Global Rank: G3G4
State Rank:
Other Status:
CRPR Changes:
changed from 2B.2 to 2B.2 on 2020-11-19
changed from 2.2 to 2B.2 on 2006-04-17
Add Date: 1994-01-01
Date Edited: 2022-04-05
Lifeform: annual herb
Blooming Period: (Feb)Mar-May
0 - 835 meters
0 - 2740 feet
General Habitat:
  • Meadows and seeps
  • North Coast coniferous forest
  • Vernal pools
General Micro Habitat:
Micro Habitat:
  • Roadsides (sometimes)
  • Vernally Mesic
Rediscovered in CA in 1999 by Clare Golec. Did plant occur in DNT Co.? Candidate for state listing in OR.

Threatened by logging, road construction, road maintenance, vehicles, and competition. Possibly threatened by non-native plants.


Sometimes mistaken for M. fontana or M. dichotoma.

Total Occurrences: 123
Element Occurrence Ranks:
11 55 32 12 6 7
Occurrence Status:
Historical >20 Years 15
Recent <=20 Years 108
Presumed Extant 117
Possibly Extirpated 5
Presumed Extirpated 1
California Endemic:
California Island:
States: Name (Code)
California (CA), Oregon (OR), Washington (WA)
California Counties and Islands: Name (Code)
Del Norte (DNT), Humboldt (HUM), Trinity (TRI)
Quads: Name (Quad Code)
Arcata North (4012481), Arcata South (4012471), Bald Hills (4112328), Blocksburg (4012336), Briceland (4012318)*, Bridgeville (4012347), Broken Rib Mtn. (4112386), Buckeye Mtn. (4012432), Bull Creek (4012431), Capetown (4012443), Eureka (4012472), Ferndale (4012453), Fields Landing (4012462), Fort Seward (4012326), Fortuna (4012452), French Camp Ridge (4112327), Harris (4012316), Hennessy Peak (4012375), High Divide (4112481), Hupa Mountain (4112317), Hydesville (4012451), Iaqua Buttes (4012368), Ironside Mtn. (4012374), Korbel (4012378), Larabee Valley (4012346), Lord-ellis Summit (4012387), Mad River Buttes (4012367), Maple Creek (4012377), McWhinney Creek (4012461), Miranda (4012327)*, Myers Flat (4012337), Orick (4112431), Owl Creek (4012358), Panther Creek (4112318), Redcrest (4012348), Salyer (4012385)*, Scotia (4012441), Taylor Peak (4012442), Weitchpec (4112326), Willow Creek (4012386), Yager Junction (4012357)
Definitions of codes following a county and/or quad:
* Presumed extirpated
(?) Occurrence confirmed, but possibly extirpated
Quad and county data is imported from the CNDDB. Species may be present in other areas where conditions are favorable. These data should NOT be substituted for pre-project review or for on-site surveys.


Presumed Extant
Counties   Quads