Danthonia intermedia Vasey
timber oatgrass
Poaceae (Grass family)
Introduction to Vascular Plants
timber oatgrass
Poaceae (Grass family)
Introduction to Vascular Plants
Photograph
© Margaret Krichbaum (Photo ID #89596)
SUBTAXA PRESENT IN BC
Danthonia intermedia ssp. intermedia
Species Information
General:
Perennial tufted grass from fibrous roots; stems not disarticulating at the nodes, 10-50 (70) cm tall.
Leaves:
Sheaths usually smooth; blades long-hairy at the throat and collar, 1-3.5 mm wide, 5-10 cm long, smooth or slightly soft-hairy, not curled with age; ligules less than 1 mm long, fringed with short hairs.
Flowers:
Inflorescence a narrow, congested panicle with (4) 5 to 10 spikelets, the lower branches with (1) 2 or 3 spikelets, stiff and erect, shorter than the spikelets; spikelets (11) 12-15 (19) mm long; lemmas 7-10 mm long, smooth over the back and densely soft-hairy along the margins, the apical teeth pointed to long-pointed (not stiff-awned), 1.5-2.5 mm long, awned from the back, the awns abruptly bent, 6.5-8 mm long, the calluses longer than wide, with stiff hairs laterally; anthers sometimes to 4 mm long.
Illustration
If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.
Illustration Source: The Illustrated Flora of British Columbia
USDA Species Characteristics
Flower Colour:
Yellow
Blooming Period:
Late Spring
Fruit/Seed characteristics:
Colour: Brown
Present over the Summer
Source: The USDA
Ecology
Ecological Framework for Danthonia intermedia
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)
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 |
||
|
Avg |
Min |
Max |
|
| Elevation
(metres) |
1597 | 30 | 2435 |
| Slope
Gradient (%) |
18 | 0 | 230 |
|
Aspect (degrees) |
168 | 0 | 360 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
3 | 0 | 8 |
| Modal
Nutrient Regime
Class |
C | ||
| #
of field plots species was recorded in: |
509 | ||
| Modal
BEC Zone Class |
ESSF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
AT(5), BAFA(14), BWBS(2), CWH(9), ESSF(281), ICH(26), IDF(50), IMA(10), MH(7), MS(63), PP(4), SBPS(12), SBS(14), SWB(5) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Moist to dry meadows, grasslands, shrub-carrs, open forests, bogs and rocky slopes in the lowland to alpine zones; common in S BC south of 55 degrees N, infrequent northward; N to AK, E to NF and S to MI, SD, NM, AZ and CA.Status Information
Synonyms
Synonyms and Alternate Names:
Danthonia canadensis Baum & Findlay
Danthonia cusickii
Danthonia intermedia var. cusickii T.A. Williams