E-Flora BC: Electronic Atlas of the Flora of British Columbia

Thinopyrum ponticum (Podp.) Z.-W. Liu & R.-C. Wang
tall wheatgrass
Poaceae (Grass family)

Introduction to Vascular Plants

© Jamie Fenneman  Email the photographer   (Photo ID #10802)

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Distribution of Thinopyrum ponticum
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Species Information

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General:
Perennial, tufted grass from fibrous roots; stems smooth, nodes exposed, 50-200 cm tall.
Leaves:
Sheaths smooth but fringed with fine hairs on the lower margins; blades with in-rolled margins, not thickened, membranous, densely hairy or rough, with 8, rounded, thickened nerves on the upper surfaces, 2-6.5 mm wide; ligules membranous, 0.3-1.5 mm long; ear-shaped lobes at the leaf-bases 0.2-1.5 mm long.

Source: The Illustrated Flora of British Columbia

USDA Species Characteristics

Flower Colour:
Yellow
Blooming Period:
Early Summer
Fruit/Seed characteristics:
Colour: Brown
Present over the Summer
Source:  The USDA

Habitat / Range

Dry roadsides, slopes and open forests in the steppe and lower montane zones; rare in SW BC (Vancouver), infrequent in SC and SE BC; introduced from Eurasia.

Source: The Illustrated Flora of British Columbia

Ecology

Ecological Framework for Thinopyrum ponticum

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)
Site Information
 Value / Class

Minimum

Average

Maximum
Elevation (metres) 885 885 885
Slope Gradient (%) 4 4 4
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W] 		108 108 108
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric] 		4 4 4
Modal Nutrient Regime
Class		 C
Number of field plots
 species was recorded in:		 1
Modal BEC Zone Class
 IDF
All BEC Zones (# of stations/zone) species was recorded in: IDF(1)

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Synonyms and Alternate Names

Agropyron elongatum
Agropyron varnense (Velen.) Hayek
Elymus elongatus
Elymus elongatus subsp. ponticus
Elymus elongatus var. ponticus (Podp.) Dorn
Elymus varnensis (Velen.) Runemark
Elytrigia elongata (Host) Nevski
Elytrigia pontica
Elytrigia pontica subsp. pontica (Podp.) Holub [superfluous autonym]
Lophopyrum elongatum (Host) A. L÷ve
Thinopyrum ponticum subsp. ponticum

Taxonomic and Nomenclatural Links


Genetic information (NCBI Taxonomy Database)
 International Plant Names Index
 Taxonomic Information from the World Flora Online
 Integrated Taxonomic Information System

Additional Photo Sources

UBC Herbarium Scanned Collection Record
 Images From CalPhoto
UT Austin's Native Plant Database
 Google Image Search
 Flickr Image Search

General References

Google Scholar Search
Family References
 General Botanical References for BC
Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2020. E-Flora BC: Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. [Accessed: 2024-05-09 9:44:10 PM ]
Disclaimer: The information contained in the E-Flora atlas pages is derived from expert sources as cited in each section. This information is scientifically based. E-Flora also acts as a portal to other sites via deep links. As always, users should refer to the original sources for complete information. E-Flora BC is not responsible for the accuracy or completeness of the original information.
© E-Flora BC: An initiative of the Spatial Data Lab, Department of Geography UBC, and the UBC Herbarium.