Taxon Report

Diplacus pygmaeus (A.L. Grant) G.L. Nesom

Egg Lake monkeyflower

Print Report


©2006 Dean Wm. Taylor

  Classification

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:
  • Mimulus pygmaeus

Ecology and Life History

Lifeform: annual herb
Blooming Period: May-Aug May-Aug
Elevation: 500-1840 (1640-6035)
General Habitats: Great Basin scrub, Lower montane coniferous forest, Meadows and seeps, Pinyon and juniper woodland
Microhabitat: Clay, Streambanks, Vernally Mesic, Volcanic
Microhabitat Details:

Occurrence Data from the CNDDB

Total Occurrences: 33
Element Occurrence Ranks:
   Excellent (A) 5
   Good (B) 23
   Fair (C) 2
   Poor (D) 1
   None (X) 0
   Unknown (U) 2
California Endemic:  False
California Counties and Islands: Name (Code)
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), Hermit Butte (4112037), Jellico (4012173), Jess Valley (4112023), Knobcone Butte (4112151), Letterbox Hill (4112018), Lookout (4112122), Payne Peak (4112053), Pease Flat (4112085), Perez (4112163), Pine Creek Valley (4012151), Poison Lake (4012162), Spalding Tract (4012067), Stover Mtn. (4012133), Straylor Lake (4012171), Swains Hole (4012163), Timbered Crater (4112124), Whitehorse (4112134)

Threat List Data from the CNDDB

Threat List Total: 8
EOs with Threat Listed: Total EOs % of EOs
20 61 %
Grazing 18 54%
Logging 5 15%
Erosion/runoff 2 6%
Foot traffic/trampling 1 3%
Development 1 3%
Recreational use (non-ORV) 1 3%
Road/trail construction/maint. 1 3%
Surface water diversion 1 3%

Notes

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.
Threats:
Taxonomy:
Citation California Native Plant Society, Rare Plant Program. 2024. Rare Plant Inventory (online edition, v9.5.1). Website https://www.rareplants.cnps.org [accessed 25 December 2024].