Hesperostipa curtiseta (Hitchc.) Barkworth
short-awned porcupinegrass (shortbristle needle and thread)
Poaceae (Grass family)
Introduction to Vascular Plants
short-awned porcupinegrass (shortbristle needle and thread)
Poaceae (Grass family)
Introduction to Vascular Plants
Species Information
General:
Perennial, tufted grass from fibrous roots; stems 24-65 cm tall; lower nodes usually smooth, sometimes evenly hairy but not with lines of hairs, nodes sometimes concealed by the lower sheaths.
Leaves:
Lower sheaths smooth; blades 1.3-3 mm wide; lower ligules 0.2-1 mm long, stiff, blunt or rounded, highest at the sides; upper ligules to 3.5 mm long, blunt to rounded.
Flowers:
Inflorescence a loose, but narrow panicle, 6-24 cm long; glumes unequal, 15-30 mm long; lemmas mostly smooth, but the base and margins with brown hairs, 8.5-14 mm long, awned, the awns twice bent, 50-105 mm long, rough throughout, the tips straight; calluses 3-5 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 Hesperostipa curtiseta
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) |
918 | 469 | 1210 |
| Slope
Gradient (%) |
10 | 0 | 95 |
|
Aspect (degrees) |
284 | 3 | 360 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
3 | 2 | 5 |
| Modal
Nutrient Regime
Class |
C | ||
| #
of field plots species was recorded in: |
141 | ||
| Modal
BEC Zone Class |
IDF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
BG(33), IDF(101), PP(7) | ||
|
Source:
Klinkenberg 2013
|
|||
Habitat and Range
Dry, open grassy slopes in the steppe and montane zones; frequent in SC and SE BC; N to NT, E to MB and S to SD and WY.Status Information
Synonyms
Synonyms and Alternate Names:
Stipa curtiseta (Hitchc.) Barkworth
Stipa spartea var. curtiseta Hitchc.