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SAMO1747
» Citation URL: http://vegbank.org/cite/urn:lsid:vegtwig.vegbank.org:observation:3751-{8213EA08-32CE-49F5-8BF0-149E1B13B2F9}
» Citing info
Plot ID Fields: 
Author Plot Code ? SAMO1747
Author Observation Code ? SAMO1747
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 ? 34.1776456374173 º
Longitude ? -119.036926151206 º
Author Location ? Calleguas Creek
Location Narrative ? Disturbed, patchy. More Baccharis pilularis now than when photo was taken. Added #7 because it is Baccharis pilularis + weeds and too thin to separate (slightly more Baccharis pilularis than 4).
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 ? large
Elevation ? 5 m
Slope Aspect ? (n/a, flat) º
Min Slope Gradient ? 1 º
Max Slope Gradient ? 5 º
Topographic Position ? Bottom
Surficial Deposits ? Sandy alluvium (most alluvial fans and washes)
Rock Type ? Sandy alluvium (most alluvial fans and washes)
Landscape Narrative ? Upland;
Percent Rock / Gravel ? 2 %
Percent Litter ? 0 %
Percent Bare Soil ? 25 %
Methods Fields: 
Observation Start Date ? 29-May-2003 ± 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 ? 1 %
Shrub Cover ? 18 %
Field Cover ? 30 %
Nonvascular Cover ? 0 %
Misc Fields: 
Observation Narrative ? original plot ID: rap1747, Vegetation type confidence High; Vegetation change: Baccharis seems to have moved in; Unusual species present: unknown Boraginaceae
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 Baccharis pilularis Baccharis pilularis DC. Baccharis pilularis Baccharis pilularis **   BAPI Baccharis pilularis DC. Baccharis pilularis Baccharis pilularis **   BAPI Medium
14 %
        -none-
2 Baccharis salicifolia Baccharis salicifolia (Ruiz & Pav.) Pers. Baccharis salicifolia Baccharis salicifolia **   BASA4 Baccharis salicifolia (Ruiz & Pav.) Pers. Baccharis salicifolia Baccharis salicifolia **   BASA4 Medium
3 %
        -none-
3 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-
4 Melilotus albus Melilotus albus Medik. Melilotus albus Melilotus albus **   MEAL2 Melilotus albus Medik. Melilotus albus Melilotus albus **   MEAL2 Low
9 %
        -none-
5 Hirschfeldia incana Hirschfeldia incana (L.) Lagr.-Foss. Hirschfeldia incana Hirschfeldia incana **   HIIN3 Hirschfeldia incana (L.) Lagr.-Foss. Hirschfeldia incana Hirschfeldia incana **   HIIN3 Low
9 %
        -none-
6 Bromus diandrus Bromus diandrus Roth Bromus diandrus Bromus diandrus **   BRDI3 Bromus diandrus Roth Bromus diandrus Bromus diandrus **   BRDI3 Low
6 %
        -none-
7 Conium maculatum Conium maculatum L. Conium maculatum Conium maculatum **   COMA2 Conium maculatum L. Conium maculatum Conium maculatum **   COMA2 Low
4 %
        -none-
8 Carduus pycnocephalus Carduus pycnocephalus L. Carduus pycnocephalus Carduus pycnocephalus **   CAPY2 Carduus pycnocephalus L. Carduus pycnocephalus Carduus pycnocephalus **   CAPY2 Low
2 %
        -none-
9 Avena barbata Avena barbata Pott ex Link Avena barbata Avena barbata **   AVBA Avena barbata Pott ex Link Avena barbata Avena barbata **   AVBA Low
0.2 %
        -none-
10 Phoenix canariensis Phoenix canariensis hort. ex Chabaud Phoenix canariensis Phoenix canariensis **   PHCA13 Phoenix canariensis hort. ex Chabaud Phoenix canariensis Phoenix canariensis **   PHCA13 Low
0.2 %
        -none-
11 Datura Datura L. Datura Datura **   DATUR Datura L. Datura Datura **   DATUR Low
0.2 %
        -none-
12 Salsola tragus Salsola tragus L. Salsola tragus Salsola tragus **   SATR12 Salsola tragus L. Salsola tragus Salsola tragus **   SATR12 Low
0.2 %
        -none-
13 Heterotheca grandiflora Heterotheca grandiflora Nutt. Heterotheca grandiflora Heterotheca grandiflora **   HEGR7 Heterotheca grandiflora Nutt. Heterotheca grandiflora Heterotheca grandiflora **   HEGR7 Low
0.2 %
        -none-
14 Erodium cicutarium Erodium cicutarium (L.) L'Hér. ex Aiton Erodium cicutarium Erodium cicutarium **   ERCI6 Erodium cicutarium (L.) L'Hér. ex Aiton Erodium cicutarium Erodium cicutarium **   ERCI6 Low
0.2 %
        -none-
15 Salix Salix L. Salix Salix **   SALIX Salix L. Salix Salix **   SALIX Tall
1 %
        -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 1 %
Medium 0.5 m 5 m  
Low 0 m 0.5 m  
Low-Mid Shrub 0.5 m 1 m  
Low Tree-Tall Shrub 2 m 5 m  
This table is SORTABLE. Click the headers to sort ascending and descending.
Observation Contributors:
Party ?Role ?
Hohn, Charlie Field assistant
Buchwalter, Rachel Field assistant
Community Classification:
More Classification Start Date ? Community AssignmentsContributors
Details 01-Jun-2004
Community Concept ?Class Fit ?Class Confidence ?Community Authority Reference ?Typal ?
Baccharis pilularis / Annual Grass-Herb Shrubland     Keeler-Wolf and Evens 2006 no
Keeler-Wolf, Todd
Evens, Julie


Disturbance Data:
Disturbance Type ?Disturbance Intensity ?Disturbance Comment ?
Road/trail construction/maint. Low Road/trail construction/maint.
Competition from exotics High Competition from exotics
Vandalism/dumping/litter Low Vandalism/dumping/litter


User Defined Values
No User Defined Data for this plot