Tuctoria mucronata
Common Name: Crampton's tuctoria or Solano grass
Family: Poaceae
Synonyms: Orcuttia mucronata
Element Code: PMPOA6N020
Full Name: Tuctoria mucronata (Crampt.) J. Reeder

2004 Carol W. Witham
Biology Glossary
Rarity Status Glossary
Occurrence Data from DFG
California Natural Diversity Database Glossary
  • Total # of Known Element Occurrences: 4
  • Element Occurrence Ranks:
    A B C D X U
    0 1 2 0 0 1
  • Population Status:
    >20 yrs
    <=20 yrs
    0 4
  • Presence:
    Present Extant Possibly Extirpated Extirpated
    4 0 0
Notes Glossary
  • Known from only three occurrences: one at Olcott Lake at Jepson Prairie Preserve, one nearby on private land, and one south of Davis on DOD land. Only four plants found at Jepson Prairie in 1993, and none in 1994-1996, 1998, 2000 and later; site presumed extirpated in 2005. Threatened by non-native plants. See Madroño 15(4):106-108 (1959) for original description, and American Journal of Botany 69:1082-1095 (1982) for revised taxonomy.
  • To submit rare plant observation data, use the CNDDB field survey form. Please see also the CNPS Rare Plant Data page.
  • Date Added: 1974-01-01
  • Last Update: 2010-03-15
Location Glossary
  • Elevation: 5 - 10 meters
  • California Endemic: yes
  • States: California
  • California Counties and Islands:   name (code)
    Solano (SOL),  Yolo (YOL)
  • Quads:   name (DWR code) USGS code
    Saxon (497B) 38121D6,  Dozier (498D) 38121C7
  • Notes:
      Definitions of codes preceding a county and/or quad:
      * Presumed extirpated
      ? Uncertain about distribution or identity
      ?* Uncertain about distribution, but presumed extirpated if once present
      (?) Occurrence confirmed, but possibly extirpated
      Species may be present in other areas where conditions are favorable.
Presumed Extant Presumed Extirpated or Unknown 1257
Links to Leading Resources of Taxon Information
Suggested Citation
CNPS, Rare Plant Program. . Inventory of Rare and Endangered Plants (online edition, v8-02). California Native Plant Society, Sacramento, CA. Website http://www.rareplants.cnps.org [accessed ].

38121D6=Saxon (497B) 38121D6;38121C7=Dozier (498D) 38121C7