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SPECIES: Montia diffusa
AUTHORSHIP AND CITATION: Matthews, Robin F. 1993. Montia diffusa. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: []. On 30 May 2018, the common name of this species was changed in FEIS from: branching montia to: spreading minerslettuce. The distribution map was also added.
ABBREVIATION: MONDIF SYNONYMS: Claytonia diffusa Nutt. [4,5,7] NRCS PLANT CODE: MODI3 COMMON NAMES: spreading minerslettuce branching montia TAXONOMY: The currently accepted scientific name of spreading minerslettuce is Montia diffusa (Nutt.) E. Greene (Portulacaceae). There are no recognized subspecies, varieties, or forms [4,7,11]. LIFE FORM: Forb FEDERAL LEGAL STATUS: No special status OTHER STATUS: The Nature Conservancy ranks spreading minerslettuce as rare and/or local globally (G3) and imperiled to critically imperiled (S1S2) in the state of Washington [12].


SPECIES: Montia diffusa
GENERAL DISTRIBUTION: Spreading minerslettuce is distributed primarily west of the Cascade-Sierra Nevada crest from British Columbia to northwestern California [4,7,11].
Distribution of spreading minerslettuce. Map courtesy of USDA, NRCS. 2018. The PLANTS Database. National Plant Data Team, Greensboro, NC [2018, May 30] [10].
   FRES20  Douglas-fir
   FRES24  Hemlock - Sitka spruce
   FRES27  Redwood

     CA  OR  WA  BC

    1  Northern Pacific Border
    2  Cascade Mountains
    3  Southern Pacific Border
    4  Sierra Mountains

   K001  Spruce - cedar - hemlock forest
   K002  Cedar - hemlock - Douglas-fir forest
   K006  Redwood forest
   K012  Douglas-fir forest

   229  Pacific Douglas-fir
   230  Douglas-fir - western hemlock


No information was available on this topic.


SPECIES: Montia diffusa
IMPORTANCE TO LIVESTOCK AND WILDLIFE: No information was available on this topic. PALATABILITY: No information was available on this topic. NUTRITIONAL VALUE: No information was available on this topic. COVER VALUE: No information was available on this topic. VALUE FOR REHABILITATION OF DISTURBED SITES: No information was available on this topic. OTHER USES AND VALUES: No information was available on this topic. OTHER MANAGEMENT CONSIDERATIONS: No information was available on this topic.


SPECIES: Montia diffusa
GENERAL BOTANICAL CHARACTERISTICS: Spreading minerslettuce is an annual forb diffusely branched from the base with erect stems 2 to 6 inches (5-15 cm) tall. The basal and cauline leaves are alike and are 0.8 to 2 inches (2-5 cm) long. The inflorescence is a terminal panicle. Capsules have one to three seeds that are approximately 0.06 inch (0.15 cm) long [4,7]. RAUNKIAER LIFE FORM: Therophyte REGENERATION PROCESSES: No information was available on this topic. SITE CHARACTERISTICS: Spreading minerslettuce is found on moist sites [4,7]. In California it most often occurs in woodlands and coniferous forests below 3,280 feet (1,000 m) elevation [7]. SUCCESSIONAL STATUS: No information was available on this topic. SEASONAL DEVELOPMENT: Spreading minerslettuce flowers from May to July [7].


SPECIES: Montia diffusa
FIRE ECOLOGY OR ADAPTATIONS: Information regarding the ecological adaptations of spreading minerslettuce for survival following fire was not available in the literature as of 1993. Miner's-lettuce (Claytonia perfoliata), a closely related species, colonizes sites following fire by long-lived seeds that are stored in the soil. Miner's-lettuce also mass-flowers in the first postfire years, allowing for secondary colonization by on-site seed [9]. Spreading minerslettuce often occurs in burned or otherwise disturbed coniferous forests [11], and may have similar postfire reproductive patterns. FIRE REGIMES: Find fire regime information for the plant communities in which this species may occur by entering the species name in the FEIS home page under "Find Fire Regimes". POSTFIRE REGENERATION STRATEGY: No information was available on this topic.


SPECIES: Montia diffusa
IMMEDIATE FIRE EFFECT ON PLANT: No information was available on this topic. PLANT RESPONSE TO FIRE: No information was available on this topic. FIRE MANAGEMENT CONSIDERATIONS: No information was available on this topic.


SPECIES: Montia diffusa
REFERENCES: 1. Bernard, Stephen R.; Brown, Kenneth F. 1977. Distribution of mammals, reptiles, and amphibians by BLM physiographic regions and A.W. Kuchler's associations for the eleven western states. Tech. Note 301. Denver, CO: U.S. Department of the Interior, Bureau of Land Management. 169 p. [434] 2. Eyre, F. H., ed. 1980. Forest cover types of the United States and Canada. Washington, DC: Society of American Foresters. 148 p. [905] 3. Garrison, George A.; Bjugstad, Ardell J.; Duncan, Don A.; [and others]. 1977. Vegetation and environmental features of forest and range ecosystems. Agric. Handb. 475. Washington, DC: U.S. Department of Agriculture, Forest Service. 68 p. [998] 4. Hitchcock, C. Leo; Cronquist, Arthur. 1973. Flora of the Pacific Northwest. Seattle, WA: University of Washington Press. 730 p. [1168] 5. Kartesz, John T.; Kartesz, Rosemarie. 1980. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. Volume II: The biota of North America. Chapel Hill, NC: The University of North Carolina Press; in confederation with Anne H. Lindsey and C. Richie Bell, North Carolina Botanical Garden. 500 p. [6954] 6. Kuchler, A. W. 1964. Manual to accompany the map of potential vegetation of the conterminous United States. Special Publication No. 36. New York: American Geographical Society. 77 p. [1384] 7. Munz, Philip A. 1973. A California flora and supplement. Berkeley, CA: University of California Press. 1905 p. [6155] 8. Raunkiaer, C. 1934. The life forms of plants and statistical plant geography. Oxford: Clarendon Press. 632 p. [2843] 9. Stickney, Peter F. 1993. Effects of fire on upland forests in the Northern Rocky Mountains. Unpublished paper on file at: U.S. Department of Agriculture, Forest Service, Intermountain Research Station, Fire Sciences Laboratory, Missoula, MT: 3 p. [21627] 10. USDA Natural Resources Conservation Service. 2018. PLANTS Database, [Online]. U.S. Department of Agriculture, Natural Resources Conservation Service (Producer). Available: [34262] 11. Hickman, James C., ed. 1993. The Jepson manual: Higher plants of California. Berkeley, CA: University of California Press. 1400 p. [21992] 12. Washington Natural Heritage Program, compiler. 1994. Endangered, threatened, and sensitive vascular plants of Washington. Olympia, WA: Department of Natural Resources. 52 p. [25413]

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