Species Details

Diplacus pygmaeus

Egg Lake monkeyflower

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Photo of Diplacus pygmaeus
©2006 Dean Wm. Taylor
Photo of Diplacus pygmaeus
©2001 Steve Schoenig
Photo of Diplacus pygmaeus
©2006 Dean Wm. Taylor
Scientific Name:
Diplacus pygmaeus (A.L. Grant) G.L. Nesom
Common Name:
Egg Lake monkeyflower
Family: Phrymaceae
Element Code: PDSCR1B2C0
USDA Plants Symbol:
Synonyms/Other Names:
Lifeform: annual herb
Blooming Period: May-Aug
500 - 1840 meters
1640 - 6035 feet
General Habitat:
  • Great Basin scrub
  • Lower montane coniferous forest
  • Meadows and seeps
  • Pinyon and juniper woodland
General Micro Habitat:
Micro Habitat:
  • Clay
  • Streambanks
  • Volcanic
  • Vernally Mesic
Rediscovered in 1980. Threatened by grazing, trampling, and hydrological alterations. Lassen NF has adopted species management guidelines. See Annals of the Missouri Botanical Garden 11(2-3):312 (1925) for original description, Phytoneuron 2012-39:1-60 (2012) for revised nomenclature, and Phytoneuron 2013-66:1-8 (2013) for taxonomic treatment.
Total Occurrences: 33
Element Occurrence Ranks:
5 23 2 1 0 2
Occurrence Status:
Historical >20 Years 33
Recent <=20 Years 0
Presumed Extant 33
Possibly Extirpated 0
Presumed Extirpated 0
California Endemic:
California Island:
States: Name (Code)
California (CA), Oregon (OR)
California Counties and Islands: Name (Code)
Calaveras (CAL), Lassen (LAS), Modoc (MOD), Plumas (PLU), Shasta (SHA), Siskiyou (SIS)
Quads: Name (Quad Code)
Almanor (4012122), Antelope Mtn. (4012058), Bullard Lake (4012078), Burney Falls (4112116), Champs Flat (4012068), Chester (4012132), Corders Reservoir (4012172), Crank Mountain (4112142), Donica Mtn. (4112132), Egg Lake (4112133), Grizzly Valley (3912085), Happy Camp Mtn. (4112141), Harvey Mtn. (4012161), Jellico (4012173), Jess Valley (4112023), Knobcone Butte (4112151), Lookout (4112122), Payne Peak (4112053), Pease Flat (4112085), Perez (4112163), Pine Creek Valley (4012151), Poison Lake (4012162), Spalding Tract (4012067), Stanislaus (3812023), Stover Mtn. (4012133), Straylor Lake (4012171), Swains Hole (4012163), Timbered Crater (4112124), Whitehorse (4112134)
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