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SAMO2903
» Citation URL: http://vegbank.org/cite/urn:lsid:vegtwig.vegbank.org:observation:4628-{7D820070-48F0-445F-AAFF-3EB810760D96}
» Citing info
Plot ID Fields: 
Author Plot Code ? SAMO2903
Author Observation Code ? SAMO2903
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 ? 34.032748807138 º
Longitude ? -118.70806463702 º
Author Location ? Malibu Bluff State Park
Location Narrative ? Photos along diameter: 1 N-facing, 1 W-facing. Stand is Avena and Bromus grassland with patches of Lotus scoparius and Euphorbia terracina. Animal digging in plot. Ambrosia ID unsure. Unsure of 'medium' height of Hypochaeris.
State or Province ? California
Country ? United States
Named Places
region|state|province: California
area|country|territory: United States
Layout Fields: 
Shape ? Circle
Area ? 25
Placement Method ? Representative
Permanence ? not permanent
Layout Narrative ? 5.65 diameter
Environment Fields: 
Stand Size ? extensive
Elevation ? 49 m
Slope Aspect ? 198 º
Min Slope Gradient ? 1 º
Max Slope Gradient ? 5 º
Topographic Position ? Lower 1/3 of slope
Surficial Deposits ? Unknown
Rock Type ? Unknown
Landscape Narrative ? Upland; Description of the plot in relation to the rest of the stand: Hard to capture patchiness. Euphorbia terracina not represented. Avena fatua a little underrepresented. Stand is typical disturbed grassland.
Percent Rock / Gravel ? 3 %
Percent Litter ? 30 %
Percent Bare Soil ? 45 %
Methods Fields: 
Observation Start Date ? 08-Apr-2003 ± exact
Date Accuracy ? exact
Project ? SAMO (CNPS Rapid Assessment/Releve 2002)
Cover Method ? Percentage (%)
Stratum Method ? CA Native Plant Society (CNPS)
Taxon Observation Area ? 25
Cover Dispersion ? Entire
Overall Taxon Cover Values are Automatically Calculated? ? no
Stem Observation Area ? 25
Plot Quality Fields: 
Plot Validation Level ? (2) classification plot: sufficient for inclusion in a classification revision
Overall Plot Vegetation Fields: 
Field Height ? 0.25 m
Tree Cover ? 0 %
Shrub Cover ? 3 %
Field Cover ? 26 %
Nonvascular Cover ? 0 %
Misc Fields: 
Observation Narrative ? original plot ID: rap2903rlv, 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 Hypochaeris glabra Hypochaeris glabra L. Hypochaeris glabra Hypochaeris glabra **   HYGL2 Hypochaeris glabra L. Hypochaeris glabra Hypochaeris glabra **   HYGL2 Medium
0.2 %
        -none-
2 Avena fatua Avena fatua L. Avena fatua Avena fatua **   AVFA Avena fatua L. Avena fatua Avena fatua **   AVFA Medium
0.2 %
        -none-
3 Hypochaeris glabra Hypochaeris glabra L. Hypochaeris glabra Hypochaeris glabra **   HYGL2 Hypochaeris glabra L. Hypochaeris glabra Hypochaeris glabra **   HYGL2 Low
6 %
        -none-
4 Avena fatua Avena fatua L. Avena fatua Avena fatua **   AVFA Avena fatua L. Avena fatua Avena fatua **   AVFA Low
4 %
        -none-
5 Bromus diandrus Bromus diandrus Roth Bromus diandrus Bromus diandrus **   BRDI3 Bromus diandrus Roth Bromus diandrus Bromus diandrus **   BRDI3 Low
3 %
        -none-
6 Vulpia myuros Vulpia myuros (L.) C.C. Gmel. Vulpia myuros Vulpia myuros **   VUMY Vulpia myuros (L.) C.C. Gmel. Vulpia myuros Vulpia myuros **   VUMY Low
3 %
        -none-
7 Erodium botrys Erodium botrys (Cav.) Bertol. Erodium botrys Erodium botrys **   ERBO Erodium botrys (Cav.) Bertol. Erodium botrys Erodium botrys **   ERBO Low
3 %
        -none-
8 Lotus scoparius Lotus scoparius (Nutt.) Ottley Lotus scoparius Lotus scoparius **   LOSC2 Lotus scoparius (Nutt.) Ottley Lotus scoparius Lotus scoparius **   LOSC2 Low
3 %
        -none-
9 Anagallis arvensis Anagallis arvensis L. Anagallis arvensis Anagallis arvensis **   ANAR Anagallis arvensis L. Anagallis arvensis Anagallis arvensis **   ANAR Low
2 %
        -none-
10 Silene gallica Silene gallica L. Silene gallica Silene gallica **   SIGA Silene gallica L. Silene gallica Silene gallica **   SIGA Low
1 %
        -none-
11 Foeniculum vulgare Foeniculum vulgare Mill. Foeniculum vulgare Foeniculum vulgare **   FOVU Foeniculum vulgare Mill. Foeniculum vulgare Foeniculum vulgare **   FOVU Low
0.2 %
        -none-
12 Distichlis spicata Distichlis spicata (L.) Greene Distichlis spicata Distichlis spicata **   DISP Distichlis spicata (L.) Greene Distichlis spicata Distichlis spicata **   DISP Low
0.2 %
        -none-
13 Hemizonia fasciculata Hemizonia fasciculata (DC.) Torr. & A. Gray Hemizonia fasciculata Hemizonia fasciculata **   HEFA Hemizonia fasciculata (DC.) Torr. & A. Gray Hemizonia fasciculata Hemizonia fasciculata **   HEFA Low
0.2 %
        -none-
14 Hazardia squarrosa Hazardia squarrosa (Hook. & Arn.) Greene Hazardia squarrosa Hazardia squarrosa **   HASQ2 Hazardia squarrosa (Hook. & Arn.) Greene Hazardia squarrosa Hazardia squarrosa **   HASQ2 Low
0.2 %
        -none-
15 Sisyrinchium bellum Sisyrinchium bellum S. Watson Sisyrinchium bellum Sisyrinchium bellum **   SIBE Sisyrinchium bellum S. Watson Sisyrinchium bellum Sisyrinchium bellum **   SIBE Low
0.2 %
        -none-
16 Sonchus oleraceus Sonchus oleraceus L. Sonchus oleraceus Sonchus oleraceus **   SOOL Sonchus oleraceus L. Sonchus oleraceus Sonchus oleraceus **   SOOL Low
0.2 %
        -none-
17 Ambrosia psilostachya Ambrosia psilostachya DC. Ambrosia psilostachya Ambrosia psilostachya **   AMPS Ambrosia psilostachya DC. Ambrosia psilostachya Ambrosia psilostachya **   AMPS Low
0.2 %
        -none-
18 Grindelia camporum Grindelia camporum Greene Grindelia camporum Grindelia camporum **   GRCA Grindelia camporum Greene Grindelia camporum Grindelia camporum **   GRCA Low
0.2 %
        -none-
19 Erodium moschatum Erodium moschatum (L.) L'Hér. ex Aiton Erodium moschatum Erodium moschatum **   ERMO7 Erodium moschatum (L.) L'Hér. ex Aiton Erodium moschatum Erodium moschatum **   ERMO7 Low
0.2 %
        -none-
20 Bromus hordeaceus Bromus hordeaceus L. Bromus hordeaceus Bromus hordeaceus **   BRHO2 Bromus hordeaceus L. Bromus hordeaceus Bromus hordeaceus **   BRHO2 Low
0.2 %
        -none-
21 Asclepias Asclepias L. Asclepias Asclepias **   ASCLE Asclepias L. Asclepias Asclepias **   ASCLE Low
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 ?
conifer tree     0 %
hardwood tree     0 %
Medium 0.5 m 5 m  
Low 0 m 0.5 m  
Low-Mid Shrub 0.5 m 1 m  
Low Tree-Tall Shrub      
This table is SORTABLE. Click the headers to sort ascending and descending.
Observation Contributors:
Party ?Role ?
Sagar, Tarja Field assistant
Christian, Julie Field assistant
Community Classification:
More Classification Start Date ? Community AssignmentsContributors
Details 01-Jun-2004
Community Concept ?Class Fit ?Class Confidence ?Community Authority Reference ?Typal ?
Bromus diandrus - Avena spp. Herbaceous Vegetation     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


User Defined Values
No User Defined Data for this plot