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SAMO2798
» Citation URL: http://vegbank.org/cite/urn:lsid:vegtwig.vegbank.org:observation:4822-{FA5F3FC6-B8A9-43A8-8A92-FB8A5B56A913}
» Citing info
Plot ID Fields: 
Author Plot Code ? SAMO2798
Author Observation Code ? SAMO2798
Original Data Location ? SAMO NPS Headquarters, 401 West Hillcrest Drive, Thousand Oaks, CA
Location Fields: MAP: Google | Yahoo | TopoZone | MapQuest
Confidentiality Status ? exact location
Latitude ? 34.1463680327868 º
Longitude ? -118.677976062507 º
Author Location ? Las Virgenes View Park
Location Narrative ? Big, only saw eastern half. Brassica nigra is lots of standing dead but some new sprouts. Evidence of deer. Hazardia patchy. GPS point in north end.
State or Province ? California
Country ? United States
Named Places
region|state|province: California
area|country|territory: United States
Layout Fields: 
Shape ? Plotless
Placement Method ? Representative
Permanence ? not permanent
Environment Fields: 
Stand Size ? extensive
Elevation ? 356 m
Slope Aspect ? (n/a, too irregular to determine) º
Min Slope Gradient ? 5 º
Max Slope Gradient ? 25 º
Topographic Position ? Middle 1/3 of slope to Ridgetop
Surficial Deposits ? Sedimentary (type unknown)
Rock Type ? Sedimentary (type unknown)
Landscape Narrative ? Upland;
Percent Rock / Gravel ? 1.2 %
Percent Litter ? 60 %
Percent Bare Soil ? 20 %
Methods Fields: 
Observation Start Date ? 10-Mar-2004 ± exact
Date Accuracy ? exact
Project ? SAMO (CNPS Rapid Assessment/Releve 2002)
Cover Method ? Percentage (%)
Stratum Method ? CA Native Plant Society (CNPS)
Cover Dispersion ? Entire
Overall Taxon Cover Values are Automatically Calculated? ? no
Plot Quality Fields: 
Plot Validation Level ? (1) occurrence plot: sufficient for determining type occurrence
Overall Plot Vegetation Fields: 
Field Height ? 0.25 m
Tree Cover ? 16 %
Shrub Cover ? 8 %
Field Cover ? 31 %
Nonvascular Cover ? 0 %
Misc Fields: 
Observation Narrative ? original plot ID: rap2798, Vegetation type confidence High;
Taxa occurring on this plot-observation
Change plant label:
Change Strata Shown:
ord Author Plant Name ?Original Interpretation, full Scientific Name ?Original Interpretation, Scientific Name without authors ?Original Interpretation, Common Name ?Original Interpretation, USDA Code ?Current Interpretation, full Scientific Name ?Current Interpretation, Scientific Name without authors ?Current Interpretation, Common Name ?Current Interpretation, USDA Code ? Stratum ?Cover ?Original Cover Code ?Basal Area ?Biomass ?Inference Area ? Stems: Stem Diameters (graphically):
1 Brassica nigra Brassica nigra (L.) W.D.J. Koch Brassica nigra Brassica nigra **   BRNI Brassica nigra (L.) W.D.J. Koch Brassica nigra Brassica nigra **   BRNI Medium
12 %
        -none-
2 Sambucus mexicana Sambucus mexicana C. Presl ex DC. Sambucus mexicana Sambucus mexicana **   SAME5 Sambucus mexicana C. Presl ex DC. Sambucus mexicana Sambucus mexicana **   SAME5 Medium
0.2 %
        -none-
3 Bromus Bromus L. Bromus Bromus **   BROMU Bromus L. Bromus Bromus **   BROMU Low
15 %
        -none-
4 Hazardia squarrosa Hazardia squarrosa (Hook. & Arn.) Greene Hazardia squarrosa Hazardia squarrosa **   HASQ2 Hazardia squarrosa (Hook. & Arn.) Greene Hazardia squarrosa Hazardia squarrosa **   HASQ2 Low
8 %
        -none-
5 Eremocarpus setigerus Eremocarpus setigerus (Hook.) Benth. Eremocarpus setigerus Eremocarpus setigerus **   ERSE3 Eremocarpus setigerus (Hook.) Benth. Eremocarpus setigerus Eremocarpus setigerus **   ERSE3 Low
2 %
        -none-
6 Dichelostemma capitatum Dichelostemma capitatum (Benth.) Alph. Wood Dichelostemma capitatum Dichelostemma capitatum **   DICA14 Dichelostemma capitatum (Benth.) Alph. Wood Dichelostemma capitatum Dichelostemma capitatum **   DICA14 Low
1 %
        -none-
7 Marah macrocarpus Marah macrocarpus (Greene) Greene Marah macrocarpus Marah macrocarpus **   MAMA8 Marah macrocarpus (Greene) Greene Marah macrocarpus Marah macrocarpus **   MAMA8 Low
0.2 %
        -none-
8 Juglans californica Juglans californica S. Watson Juglans californica Juglans californica **   JUCA Juglans californica S. Watson Juglans californica Juglans californica **   JUCA Tall
9 %
        -none-
9 Quercus agrifolia Quercus agrifolia Née Quercus agrifolia Quercus agrifolia **   QUAG Quercus agrifolia Née Quercus agrifolia Quercus agrifolia **   QUAG Tall
5 %
        -none-
10 Quercus lobata Quercus lobata Née Quercus lobata Quercus lobata **   QULO Quercus lobata Née Quercus lobata Quercus lobata **   QULO Tall
2 %
        -none-
11 Phoradendron tomentosum ssp. macrophyllum Phoradendron tomentosum (DC.) Engelm. ex A. Gray ssp. macrophyllum (Engelm.) Wiens Phoradendron tomentosum ssp. macrophyllum Phoradendron tomentosum ssp. macrophyllum **   PHTOM Phoradendron tomentosum (DC.) Engelm. ex A. Gray ssp. macrophyllum (Engelm.) Wiens Phoradendron tomentosum ssp. macrophyllum Phoradendron tomentosum ssp. macrophyllum **   PHTOM Tall
0.2 %
        -none-
This table is SORTABLE. Click the headers to sort ascending and descending.

Stratum Definitions:
Stratum Type ?Stratum Base ?Stratum Height ?Stratum Cover ?
Tall 5 m    
conifer tree     0 %
hardwood tree 5 m 10 m 16 %
Medium 0.5 m 5 m  
Low 0 m 0.5 m  
Low-Mid Shrub 0 m 0.5 m  
Low Tree-Tall Shrub 1 m 2 m  
This table is SORTABLE. Click the headers to sort ascending and descending.
Observation Contributors:
Party ?Role ?
Hohn, Charlie Field assistant
Clarke, Brendan Field assistant
Community Classification:
More Classification Start Date ? Community AssignmentsContributors
Details 01-Jun-2004
Community Concept ?Class Fit ?Class Confidence ?Community Authority Reference ?Typal ?
Quercus lobata – Quercus agrifolia / Grass Association     Keeler-Wolf and Evens 2006 no
Keeler-Wolf, Todd
Evens, Julie


Disturbance Data:
Disturbance Type ?Disturbance Intensity ?Disturbance Comment ?
Competition from exotics High Competition from exotics


User Defined Values
No User Defined Data for this plot