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ZION.74
» Citation URL: http://vegbank.org/cite/VB.Ob.4886.ZION74
» Citing info
Plot ID Fields: 
Author Plot Code ? ZION.74
Author Observation Code ? ZION.74
Location Fields: MAP: Google | Yahoo | TopoZone | MapQuest
Confidentiality Status ? exact location
Latitude ? 37.40468009 º
Longitude ? -113.140473262 º
Author Location ? ZION -- Hop Valley
Location Narrative ? From Hop Valley TH, hike on the Hop Valley trail for several miles. Plot is on E side of creek, just north of campsite B.
State or Province ? Utah
Country ? United States
Named Places
area|country|territory: United States
region|state|province: Utah
quadrangle: Kolob Arch
Layout Fields: 
Shape ? Circle
Area ? 0
Permanence ? permanent plot
Environment Fields: 
Elevation ? 1743.45599734995 m
Slope Aspect ? 0 º
Slope Gradient ? 2.5 º
Topographic Position ? Low level
Landform ? valley floor
Surficial Deposits ? Lacustrine Deposits: Unconsolidated Sediments
Representativeness ? of association - Salix with grasses are common sandy valley bottom associations. of plot in stand -
Hydrologic Regime ? Seasonally flooded
Soil Drainage ? well drained
Soil Depth ? 0 m
Percent Bedrock ? 0 %
Percent Rock / Gravel ? 0 %
Percent Wood ? 0 %
Percent Litter ? 30 %
Percent Bare Soil ? 70 %
Percent Water ? 0 %
Percent Other ? 0 %
Methods Fields: 
Observation Start Date ? 29-Jun-2000
Observation End Date ? 29-Jun-2000
Project ? Zion National Park
Cover Method ? NPS CoverMethod
Stratum Method ? National Park Service
Stem Size Limit ? 10 cm
Taxon Observation Area ? 0
Cover Dispersion ? contiguous
Overall Taxon Cover Values are Automatically Calculated? ? yes
Stem Sample Method ? full census
Plot Quality Fields: 
Effort Level ? Thorough
Plot Validation Level ? (2) classification plot: sufficient for inclusion in a classification revision
Floristic Quality ? High but incomplete
Bryophyte Quality ? Very incomplete
Lichen Quality ? Very incomplete
Overall Plot Vegetation Fields: 
--no data--
Misc Fields: 
Observation Narrative ? private land in Hop Valley is in very poor condition. Weeds are moving into park via cattle grazing
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 Salix exigua Nutt. Salix exigua Nutt. Salix exigua narrowleaf willow Salix exigua Nutt. **   Salix exigua Nutt. Salix exigua narrowleaf willow Salix exigua Nutt. **   Short Shrub
10 %
03       -none-
2 Senecio spartioides Torr. & Gray Senecio spartioides Torr. & Gray Senecio spartioides broomlike ragwort Senecio spartioides Torr. & Gray **   Senecio spartioides Torr. & Gray Senecio spartioides broomlike ragwort Senecio spartioides Torr. & Gray **   Herbaceous
2.5 %
02       -none-
3 Elymus L. Elymus L. Elymus wildrye Elymus L. **   Elymus L. Elymus wildrye Elymus L. **   Herbaceous
2.5 %
02       -none-
4 Bromus tectorum L. Bromus tectorum L. Bromus tectorum cheatgrass Bromus tectorum L. **   Bromus tectorum L. Bromus tectorum cheatgrass Bromus tectorum L. **   Herbaceous
2.5 %
02       -none-
5 Sporobolus cryptandrus (Torr.) Gray Sporobolus cryptandrus (Torr.) Gray Sporobolus cryptandrus sand dropseed Sporobolus cryptandrus (Torr.) Gray **   Sporobolus cryptandrus (Torr.) Gray Sporobolus cryptandrus sand dropseed Sporobolus cryptandrus (Torr.) Gray **   Herbaceous
0.5 %
01       -none-
6 Oenothera L. Oenothera L. Oenothera evening-primrose Oenothera L. **   Oenothera L. Oenothera evening-primrose Oenothera L. **   Herbaceous
0.5 %
01       -none-
7 Tradescantia occidentalis (Britt.) Smyth Tradescantia occidentalis (Britt.) Smyth Tradescantia occidentalis prairie spiderwort Tradescantia occidentalis (Britt.) Smyth **   Tradescantia occidentalis (Britt.) Smyth Tradescantia occidentalis prairie spiderwort Tradescantia occidentalis (Britt.) Smyth **   Herbaceous
0.5 %
01       -none-
8 Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth Achnatherum hymenoides Indian ricegrass Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth **   Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth Achnatherum hymenoides Indian ricegrass Achnatherum hymenoides (Roemer & J.A. Schultes) Barkworth **   Herbaceous
0.5 %
01       -none-
This table is SORTABLE. Click the headers to sort ascending and descending.

Stratum Definitions:
Stratum Type ?Stratum Base ?Stratum Height ?Stratum Cover ?
Canopy     0 %
Dwarf Shrub     0 %
Emergent     0 %
Epiphyte     0 %
Herbaceous   0.5 m 10 %
Nonvascular     0 %
Short Shrub 2 m 5 m 10 %
Sub-Canopy     0 %
Tall Shrub     0 %
Vine/Liana     0 %
This table is SORTABLE. Click the headers to sort ascending and descending.
Observation Contributors:
Party ?Role ?
Reid, Marion PI
Lewelling, Kelley Field assistant
Thompson, Julie Field assistant
Community Classification:
More Classification Start Date ? Community AssignmentsContributors
Details 01-Feb-2002
Community Concept ?Class Fit ?Class Confidence ?Community Authority Reference ?Typal ?
Salix exigua / Barren Shrubland       no
Reid, Marion


Soil Observations:
Soil Horizon ?Soil Depth Top ?Soil Depth Bottom ?Soil Color ?Soil Organic ?Soil Texture ?Soil Sand ?Soil Silt ?Soil Clay ?Soil Coarse ?Soil PH ?Exchange Capacity ?Base Saturation ?Soil Description ?
unknown         Sands: Sand                


Disturbance Data:
Disturbance Type ?Disturbance Intensity ?Disturbance Comment ?
Animal, general   some cow droppings - this plot is just north of private land


User Defined Values
No User Defined Data for this plot