BC Conservation Data Centre: Conservation Status Report
Hesperostipa spartea
porcupinegrass
| Scientific Name: | Hesperostipa spartea |
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| Scientific Name Synonyms: |
Stipa spartea
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| English Name: | porcupinegrass |
| Provincial Status Summary | |
| Status: | S3 |
| Date Status Assigned: | May 06, 2022 |
| Date Last Reviewed: | May 06, 2022 |
| Reasons: | There are currently 8 known occurrences of Hesperostipa spartea in British Columbia, 6 of which are considered extant. The range extent is 41,993 square kilometres and the area of occupancy is over 24 square kilometres with additional occurrences likely. |
| Range | |
| Range Extent: | DE = 1,000-20,000 square km |
| Range Extent Comments: | The range extent for Hesperostipa spartea, calculated using a convex hull, is 1,993 square kilometres, uncommon around Trail and in the North Okanagan. |
| Area of Occupancy (km2): | DE = 6-125 |
| Area of Occupancy Comments: | The area of occupancy, using a 2km x 2km grid cell for extant occurrences, is over 24 square kilometres. |
| Occurrences & Population | |
| Number of Occurrences: | BC = 6 - 80 |
| Comments: | There are currently 8 known occurrences of Hesperostipa spartea in British Columbia, 6 of which are considered extant. |
| Number of Occurrences with Good Viability / Ecological Integrity: | C = 4 - 12 |
| Number of Occurrences Appropriately Protected & Managed: | B = 1 - 3 |
| Population Size: | Rank Factor not assessed |
| Threats (to population, occurrences, or area affected) | |
| Degree of Threat: | Rank Factor not assessed |
| Trend (in population, range, area occupied, and/or condition of occurrences) | |
| Short-Term Trend: | Rank Factor not assessed |
| Long-Term Trend: | Rank Factor not assessed |
| Other Factors | |
| Intrinsic Vulnerability: | C=Not intrinsically vulnerable |
| Environmental Specificity: | Rank Factor not assessed |
| Other Rank Considerations: | |
| Information Gaps | |
| Research Needs: | |
| Inventory Needs: | |
| Stewardship | |
| Protection: | |
| Management: | |
| Version | |
| Author: | R. Batten |
| Date: | December 21, 2021 |
| References | |
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British Columbia Conservation Data Centre. Botany Program. 2000. Database containing records of rare plant collections and observations in the province of British Columbia.
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Douglas, G.W., D. Meidinger, and J. Penny. 2002. Rare Native Vascular Plants of British Columbia, 2nd ed. B.C. Conserv. Data Centre, Terrestrial Inf. Branch, Victoria. 358pp.
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Please visit the website Conservation Status Ranks for information on how the CDC determines conservation status ranks. For global conservation status reports and ranks, please visit the NatureServe website http://www.natureserve.org/.
Suggested Citation:
B.C. Conservation Data Centre. 2021. Conservation Status Report: Hesperostipa spartea. B.C. Minist. of Environment. Available: https://a100.gov.bc.ca/pub/eswp/ (accessed Jun 5, 2026).