Poa marcida Hitchc.
weeping bluegrass (withered bluegrass)
Poaceae (Grass family)
Introduction to Vascular Plants
weeping bluegrass (withered bluegrass)
Poaceae (Grass family)
Introduction to Vascular Plants
Species Information
General:
Perennial, loosely to densely tufted grass from fibrous roots, sometimes with short rhizomes; stems 20-80 cm tall.
Leaves:
Sheaths smooth, the margins open about 1/10 their length; sterile shoots emerging mainly inside sheaths with tubular two-keeled buds protecting the scales; blades 1.5-5 mm wide, flat; ligules 0.5-2 mm long, the tips blunt, the backs smooth.
Flowers:
Inflorescence a lax panicle, 6-22 cm long, narrowly lanceolate, sparse, the branches 1 to 3 per node, ascending, lax, rough on angles; spikelets laterally compressed, 3.5-7 mm long, (1-) 2- (4-) flowered; lower glumes 1-nerved; rachilla internodes about 1 mm long, smooth, hairless; lemmas narrowly lanceolate, 3.2-5 mm long, the tips long-pointed, surface smooth, hairless, the lateral nerves moderately prominent; calluses sparsely cobwebby; palea keels smooth to rough; flowers bisexual; anthers 0.5-1.2 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
Ecology
Ecological Framework for Poa marcida
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) |
224 | 5 | 1200 |
| Slope
Gradient (%) |
8 | 0 | 75 |
|
Aspect (degrees) |
243 | 0 | 350 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
5 | 1 | 7 |
| Modal
Nutrient Regime
Class |
D | ||
| #
of field plots species was recorded in: |
57 | ||
| Modal
BEC Zone Class |
CWH | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
CWH(54), ESSF(1), SBS(1) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Wet to moist meadows and bogs in the lowland zone; infrequent on Vancouver Island; rare in the lower Fraser valley (Vancouver); S to NW OR.Status Information
Synonyms
Synonyms and Alternate Names:
Poa saltuensis var. marcida (Hitchc.) B. Boivin