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JSRCH004
» Citation URL: http://vegbank.org/cite/urn:lsid:vegtwig.vegbank.org:observation:1290-{094C741B-6197-4FAF-8FC0-396193B8DC8C}
» Citing info
Plot ID Fields: 
Author Plot Code ? JSRCH004
Author Observation Code ? JSRCH004
Original Data Location ? California Dept. of Fish and Wildlife, Vegetation Classification Program, Sacramento, CA
Location Fields: MAP: Google | Yahoo | TopoZone | MapQuest
Confidentiality Status ? exact location
Latitude ? 40.5909963851125 º
Longitude ? -122.084635240181 º
Author Location ? JS Ranch
Location Narrative ? This plot is located on a gentle north-facing slope, 150 m west of Whitmore Rd, on the north end of the JS Ranch property, surrounded by barely leafing-out blue oak woodland. This annual grass-dominated stand, with high cover of Zigadenus fremontii, extends another 60 m to the west in an adjacent opening of tree canopy. The soil substrate is very heavy clay, and there is a thick thatch layer (most likely from Taeniatherum) in the stand.; This site is heavily grazed, but not as much as surrounding areas, maybe due to toxicity of Zigadenus fremontii, which the cattle do not eat.
State or Province ? California
Country ? United States
Named Places
region|state|province: California
area|country|territory: United States
Layout Fields: 
Shape ? square
Area ? 100
Placement Method ? Representative
Permanence ? not permanent
Layout Narrative ? 10 m wide
Environment Fields: 
Stand Size ? small
Elevation ? 326 m
Slope Aspect ? 3 º
Slope Gradient ? 6 º
Topographic Position ? Middle 1/3 of slope
Surficial Deposits ? Basalt
Rock Type ? Basalt
Landscape Narrative ? upland; Annual Grass; The site is close to Whitmore Rd. The phenology of the annual grasses is still early. In a few weeks the herbaceous cover will be higher. Not 100% positive that the parent material is correct. There is basalt in the surrounding oak woodland.
Percent Bedrock ? 0.2 %
Percent Rock / Gravel ? 0.6 %
Percent Litter ? 68 %
Percent Bare Soil ? 25 %
Percent Other ? 2 %
Name Other ? incl.other surf.& living stems
Methods Fields: 
Observation Start Date ? 18-Apr-2006 ± exact
Date Accuracy ? exact
Project ? northern Sierra Foothills releves
Cover Method ? Percentage (%)
Stratum Method ? CA Native Plant Society (CNPS)
Taxon Observation Area ? 100
Cover Dispersion ? Entire
Overall Taxon Cover Values are Automatically Calculated? ? no
Stem Observation Area ? 100
Plot Quality Fields: 
Plot Validation Level ? (2) classification plot: sufficient for inclusion in a classification revision
Overall Plot Vegetation Fields: 
--no data--
Misc Fields: 
Observation Narrative ? cited in Klein et al. 2007 as SNFN0398
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 Moss Moss **   Bryophyta Mosses Moss **   Moss **   Bryophyta Mosses Moss **   Low
40 %
        -none-
2 Lolium multiflorum Lolium multiflorum Lam. Lolium multiflorum Lolium multiflorum **   LOMU Lolium multiflorum Lam. Lolium multiflorum Lolium multiflorum **   LOMU Low
7 %
        -none-
3 Taeniatherum caput-medusae Taeniatherum caput-medusae (L.) Nevski Taeniatherum caput-medusae Taeniatherum caput-medusae **   TACA8 Taeniatherum caput-medusae (L.) Nevski Taeniatherum caput-medusae Taeniatherum caput-medusae **   TACA8 Low
5 %
        -none-
4 Avena Avena L. Avena Avena **   AVENA Avena L. Avena Avena **   AVENA Low
4 %
        -none-
5 Cynosurus echinatus Cynosurus echinatus L. Cynosurus echinatus Cynosurus echinatus **   CYEC Cynosurus echinatus L. Cynosurus echinatus Cynosurus echinatus **   CYEC Low
4 %
        -none-
6 Zigadenus fremontii Zigadenus fremontii (Torr.) Torr. ex S. Watson Zigadenus fremontii Zigadenus fremontii **   ZIFR Zigadenus fremontii (Torr.) Torr. ex S. Watson Zigadenus fremontii Zigadenus fremontii **   ZIFR Low
3 %
        -none-
7 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
2 %
        -none-
8 Bromus hordeaceus Bromus hordeaceus L. Bromus hordeaceus Bromus hordeaceus **   BRHO2 Bromus hordeaceus L. Bromus hordeaceus Bromus hordeaceus **   BRHO2 Low
1 %
        -none-
9 Senecio vulgaris Senecio vulgaris L. Senecio vulgaris Senecio vulgaris **   SEVU Senecio vulgaris L. Senecio vulgaris Senecio vulgaris **   SEVU Low
0.2 %
        -none-
10 Cerastium glomeratum Cerastium glomeratum Thuill. Cerastium glomeratum Cerastium glomeratum **   CEGL2 Cerastium glomeratum Thuill. Cerastium glomeratum Cerastium glomeratum **   CEGL2 Low
0.2 %
        -none-
11 Trifolium dubium Trifolium dubium Sibth. Trifolium dubium Trifolium dubium **   TRDU2 Trifolium dubium Sibth. Trifolium dubium Trifolium dubium **   TRDU2 Low
0.2 %
        -none-
12 Torilis arvensis Torilis arvensis (Huds.) Link Torilis arvensis Torilis arvensis **   TOAR Torilis arvensis (Huds.) Link Torilis arvensis Torilis arvensis **   TOAR Low
0.2 %
        -none-
13 Geranium dissectum Geranium dissectum L. Geranium dissectum Geranium dissectum **   GEDI Geranium dissectum L. Geranium dissectum Geranium dissectum **   GEDI Low
0.2 %
        -none-
14 Athysanus pusillus Athysanus pusillus (Hook.) Greene Athysanus pusillus Athysanus pusillus **   ATPU Athysanus pusillus (Hook.) Greene Athysanus pusillus Athysanus pusillus **   ATPU Low
0.2 %
        -none-
15 Clarkia Clarkia Pursh Clarkia Clarkia **   CLARK Clarkia Pursh Clarkia Clarkia **   CLARK Low
0.2 %
        -none-
16 Vicia sativa Vicia sativa L. Vicia sativa Vicia sativa **   VISA Vicia sativa L. Vicia sativa Vicia sativa **   VISA Low
0.2 %
        -none-
17 Centaurium muehlenbergii Centaurium muehlenbergii (Griseb.) W. Wight ex Piper Centaurium muehlenbergii Centaurium muehlenbergii **   CEMU2 Centaurium muehlenbergii (Griseb.) W. Wight ex Piper Centaurium muehlenbergii Centaurium muehlenbergii **   CEMU2 Low
0.2 %
        -none-
18 Galium parisiense Galium parisiense L. Galium parisiense Galium parisiense **   GAPA5 Galium parisiense L. Galium parisiense Galium parisiense **   GAPA5 Low
0.2 %
        -none-
19 Linanthus bicolor Linanthus bicolor (Nutt.) Greene Linanthus bicolor Linanthus bicolor **   LIBI Linanthus bicolor (Nutt.) Greene Linanthus bicolor Linanthus bicolor **   LIBI Low
0.2 %
        -none-
20 Trifolium subterraneum Trifolium subterraneum L. Trifolium subterraneum Trifolium subterraneum **   TRSU3 Trifolium subterraneum L. Trifolium subterraneum Trifolium subterraneum **   TRSU3 Low
0.2 %
        -none-
21 Ranunculus occidentalis Ranunculus occidentalis Nutt. Ranunculus occidentalis Ranunculus occidentalis **   RAOC Ranunculus occidentalis Nutt. Ranunculus occidentalis Ranunculus occidentalis **   RAOC 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 ?
Low 0 m 0.5 m 27 %
Medium 0.5 m 5 m 0 %
Tall 5 m   0 %
This table is SORTABLE. Click the headers to sort ascending and descending.
Observation Contributors:
Party ?Role ?
Brush, Rachel Field assistant
Kentner, Ed Field assistant
Community Classification:
More Classification Start Date ? Community AssignmentsContributors
Details 01-Jan-2007
Community Concept ?Class Fit ?Class Confidence ?Community Authority Reference ?Typal ?
Toxicoscordion fremontii (– Lolium perenne) Association     Klein et al. 2007 no
Klein, Anne


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


User Defined Values
No User Defined Data for this plot