BC Conservation Data Centre: Conservation Status Report
Lupinus sulphureus var. sulphureus
sulphur lupine
| Scientific Name: | Lupinus sulphureus var. sulphureus |
|---|---|
| English Name: | sulphur lupine |
| Provincial Status Summary | |
| Status: | SU |
| Date Status Assigned: | April 30, 2024 |
| Date Last Reviewed: | April 30, 2024 |
| Reasons: | There are currently 12 known occurrences of Lupinus sulphureus in British Columbia, 8 of which are considered extant. The range extent is 2,075 square kilometres and the area of occupancy is 32 square kilometres. Possibly more abundant than data suggests, but also likely under pressure from various threats, including agriculture and development. |
| Range | |
| Range Extent: | D = 1,000-5,000 square km |
| Range Extent Comments: | The range extent for Lupinus sulphureus, calculated using a convex hull, is 2,075 square kilometres; from Osoyoos north to Trapp Lake (south of Kamloops). |
| Area of Occupancy (km2): | D = 6-25 |
| Area of Occupancy Comments: | The area of occupancy, using a 2km x 2km grid cell for extant occurrences, is 32 square kilometres. |
| Occurrences & Population | |
| Number of Occurrences: | BC = 6 - 80 |
| Comments: | There are currently 12 known occurrences of Lupinus sulphureus in British Columbia, 8 of which are considered extant. |
| Number of Occurrences with Good Viability / Ecological Integrity: | CD = 4 - 40 |
| Comments: | Information on viability is lacking for most occurrences, but plants were reported as common for the Olalla and Yellow Lake occurrences. |
| Number of Occurrences Appropriately Protected & Managed: | U = Unknown |
| Population Size: | U = Unknown |
| Threats (to population, occurrences, or area affected) | |
| Degree of Threat: | U = Unknown |
| Comments: | Threats have not been identified for reported populations, but the South Okanagan is a fast growing region in the province and natural areas are under pressure from agricultural and residential development. |
| Trend (in population, range, area occupied, and/or condition of occurrences) | |
| Short-Term Trend: | U = Unknown |
| Long-Term Trend: | U = Unknown |
| Other Factors | |
| Intrinsic Vulnerability: | C=Not intrinsically vulnerable |
| Environmental Specificity: | Rank Factor not assessed |
| Comments: | Dry sagebrush flats and forest openings in the steppe and lower montane zones. |
| Other Rank Considerations: | |
| Information Gaps | |
| Research Needs: | |
| Inventory Needs: | |
| Stewardship | |
| Protection: | |
| Management: | |
| Version | |
| Author: | Donovan, M. and R. Batten |
| Date: | February 08, 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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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: Lupinus sulphureus var. sulphureus. B.C. Minist. of Environment. Available: https://a100.gov.bc.ca/pub/eswp/ (accessed Jun 8, 2026).