Print Report

CEGL003465 Raphanus sativus Ruderal Forbland

Type Concept Sentence: No Data Available


Common (Translated Scientific) Name: Radish Ruderal Forbland

Colloquial Name: No Data Available

Hierarchy Level:  Association

Type Concept: This herbaceous association is currently only known from Point Reyes National Seashore in California, and the following description is based on occurrences there. Additional information will be added as it becomes available. This association is found on upper, linear slopes of 7-9° and ridgetops. Aspects range from north to south. It is found on granitic soils that are medium loam to moderately coarse, sandy loam. Stands of this association form an intermittent to continuous grassland dominated by Raphanus sativus. Bromus diandrus and or Lolium perenne ssp. multiflorum may also be common. Stellaria media, Marah fabaceus, Claytonia perfoliata, Rumex acetosella, Vulpia bromoides, Amsinckia spectabilis, and a variety of other herbaceous species contribute minor cover.

Diagnostic Characteristics: No Data Available

Rationale for Nominal Species or Physiognomic Features: No Data Available

Classification Comments: Radish patches are minor variants of annual grassland probably reflecting certain disturbance regimes conducive to proliferation of these tall annuals over shorter annual grasses. This association is only known from the Point Reyes National Seashore. Similar Raphanus sativus-dominated weedy stands occupy many disturbed areas in Cismontane California below about 600 m. However, only a few plots exist. Two plots from Suisun Marsh (Keeler-Wolf et al. 2000) are widely divergent, one with vestiges of brackish marsh species such as Distichlis spicata and Frankenia salina, and another with an equal cover of the invasive yellow star thistle Centaurea solstitialis. Information about its global characteristics is not available without additional inventory.

Similar NVC Types: No Data Available
note: No Data Available

Physiognomy and Structure: No Data Available

Floristics: Stands of this association form an intermittent to continuous grassland dominated by Raphanus sativus. Bromus diandrus and or Lolium perenne ssp. multiflorum (= Lolium multiflorum) may also be common. Stellaria media, Marah fabaceus, Claytonia perfoliata, Rumex acetosella, Vulpia bromoides, Amsinckia spectabilis, and a variety of other herbaceous species contribute minor cover.

Dynamics:  No Data Available

Environmental Description:  This association is found on upper, linear slopes of 7-9° and ridgetops. Aspects range from north to south. It is found on granitic soils that are medium loam to moderately coarse, sandy loam.

Geographic Range: This herbaceous association is currently only known from Point Reyes National Seashore in California. Additional range information will be added as it becomes available.

Nations: US

States/Provinces:  CA




Confidence Level: Low - Poorly Documented

Confidence Level Comments: No Data Available

Grank: GNA

Greasons: No Data Available


Concept Lineage: No Data Available

Predecessors: No Data Available

Obsolete Names: No Data Available

Obsolete Parents: No Data Available

Synonomy: = Raphanus sativus (Sawyer et al. 2009) [42.011.04]
= Raphanus sativus (generic) 405 (Keeler-Wolf et al. 2000)
= Raphanus sativus Association (Schirokauer et al. 2003) [pi code 67012]

Concept Author(s): Schirokauer et al. (2003)

Author of Description: T. Keeler-Wolf

Acknowledgements: No Data Available

Version Date: 05-06-10

  • Keeler-Wolf, T., M. Vaghti, and A. Kilgore. 2000. Vegetation mapping of Suisun Marsh, Solano County: A report to the California Department of Water Resources. Administrative report on file at California Natural Diversity Database, California Department of Fish and Game, Sacramento.
  • Sawyer, J. O., T. Keeler-Wolf, and J. Evens. 2009. A manual of California vegetation. Second edition. California Native Plant Society, Sacramento CA. 1300 pp.
  • Schirokauer, D., T. Keeler-Wolf, J. Meinke, and P. van der Leeden. 2003. Plant community classification and mapping project. Point Reyes National Seashore, Golden Gate National Recreation Area, San Francisco Water Department Watershed Lands, Mount Tamalpais, Tomales Bay, and Samuel P. Taylor State Parks. Final report. California State Department of Fish and Game, Wildlife and Habitat Data Analysis Branch, Sacramento, National Park Service, Point Reyes Station, and Aerial Information Systems, Redlands, CA. 82 pp. [http://biology.usgs.gov/npsveg/pore_goga/index.html]
  • Western Ecology Working Group of NatureServe. No date. International Ecological Classification Standard: International Vegetation Classification. Terrestrial Vegetation. NatureServe, Boulder, CO.