BC Conservation Data Centre: Conservation Status Report
Eleocharis quinqueflora / Drepanocladus spp.
few-flowered spike-rush / hook-mosses
| Scientific Name: | Eleocharis quinqueflora / Drepanocladus spp. |
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| English Name: | few-flowered spike-rush / hook-mosses |
| Provincial Status Summary | |
| Status: | S3 |
| Date Status Assigned: | April 25, 2022 |
| Date Last Reviewed: | April 01, 2022 |
| Reasons: | There are few known occurrences of this ecological community, which has a very narrow environmental specificity over its large range. Changes to hydrology due to inappropriate development or climate change are likely the greatest threat. |
| Range | |
| Range Extent: | F = 20,000-200,000 square km |
| Range Extent Estimate (km2): | 119,720 |
| Biogeoclimatic Unit: |
BWBSdk/Wf09
ESSFdc1/Wf09 ESSFdc2/Wf09 ESSFdh1/Wf09 ESSFmc/Wf09 ESSFmh/Wf09 ESSFmw1/Wf09 ESSFxc/Wf09 ESSFxc1/Wf09 ESSFxc2/Wf09 ESSFxc3/Wf09 ESSFxv1/Wf09 MSdm2/Wf09 MSxk1/Wf09 MSxk2/Wf09 MSxv/Wf09 SBPSxc/Wf09 SBSmc2/Wf09 |
| Range Extent Comments: | The range extent estimate of 119,720 km2 for this ecological community is based on Version 12 of the Biogeclimatic Ecosystem Classification (BEC) map (B.C. Ministry of Forests, Lands, and Natural Resource Operations. 2021). The range was expanded based on plot data that was found in the ESSFmv3, SBSmk1, BWBSwk1 and BWBSmw (AMEC 2010, Stantec 2014, TERA 2014, Filatow et al. 2020). |
| Area of Occupancy (km2): | U = Unknown |
| Area of Occupancy Comments: | Twenty-nine plots and one polygon have been found for this ecological community from a variety of projects (AMEC 2010, Stantec 2014, TERA 2014, Filatow et al. 2020), including those used for the wetland classification in the BEC Master database (B.C. Ministry of Forests, Lands, Natural Resource Operations and Rural Development 2017). With plot data it is not possible to get an Area of Occupancy. Eighteen of the plots were collected for ecosystem classification, and the others were from Environmental Assessment projects; it is not possible to calculate the proportion of the range that has ecosystem mapping with this information. |
| Spatial Pattern: | Small patch |
| Occurrences | |
| Number of Occurrences: | C = 21 - 80 |
| Comments: | Element Occurrence mapping has mapped two Element Occurrences for this Ecological Community, but if each of the plots or polygons in available ecosystem mapping that identified this ecosystem was an Element Occurrence there would be 30. |
| Number of Occurrences with Good Viability / Ecological Integrity: | U = Unknown |
| Comments: | This ecological community is not expected to be directly disturbed due to the high moisture levels on these sites, and remoteness from highly developed areas. |
| Threats (to population, occurrences, or area affected) | |
| Degree of Threat: | C = Medium |
| Comments: | Changes to hydrology are likely the greatest threat to this ecological community, changes can be caused by inappropropriate development or climate change. |
| Trend (in population, range, area occupied, and/or condition of occurrences) | |
| Short-Term Trend: | FG = Decline of <30% to relatively stable |
| Comments: | This wetland type is unlikely to be disturbed very often due to the high moisture levels on these sites, and remoteness from highly developed areas. There is likely to have been some loss, though this is not possible to quantify. |
| Long-Term Trend: | FG = Decline of <30% to relatively stable |
| Comments: | This wetland type is unlikely to be disturbed very often due to the high moisture levels on these sites, and remoteness from highly developed areas. There is likely to have been some loss, though this is not possible to quantify. |
| Other Factors | |
| Intrinsic Vulnerability: | B=Moderately vulnerable |
| Environmental Specificity: | A=Very narrow. Specialist or community with key requirements scarce. |
| Comments: | Rare throughout its range, and cccurs only on slope positions with continual slow surface seepage (MacKenzie and Moran 2004). |
| Other Rank Considerations: | |
| Information Gaps | |
| Research Needs: | |
| Inventory Needs: | |
| Stewardship | |
| Protection: | |
| Management: | |
| Version | |
| Author: | de Groot, A. |
| Date: | April 01, 2022 |
| References | |
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B.C. Ministry of Forests, Lands, and Natural Resource Operations. Biogeoclimatic Ecosystem Classification (BEC) Map, WHSE_FOREST_VEGETATION.BEC_BIOGEOCLIMATIC_POLY [ESRI ArcSDE format]. Version 9. Ministry of Forests, Lands, and Natural Resource Operations, Forest Analysis and Inventory Branch, Victoria, B.C. Updated Regularly.
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MacKenzie, W.H. and J.R. Moran. 2004. Wetlands of British Columbia: a guide to identification. Res. Br., B.C. Min. For., Victoria, B.C. Land Manage. Handb. No. 52.
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Skaien, C.L., Deepa, S.F., and Straka, J. 2023. "Atlin Wetlands 2023: BAPID 6667: Wetland Polygons for Atlin, BC". BC Ministry of Water, Land and Resource Stewardship.
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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. 2022. Conservation Status Report: Eleocharis quinqueflora / Drepanocladus spp.. B.C. Minist. of Environment. Available: https://a100.gov.bc.ca/pub/eswp/ (accessed Jun 10, 2026).