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November 3, 2014: Updates to Plant S-Ranks and Tracking Statuses

The fall meeting of the Botanical Assessment Working Group (BAWG) was recently held on October 30, 2014, and resulted in a number of plant S-rank changes (see below for a summary).

Of note is the reassessment of Small Lupine (Lupinus pusillus ssp. pusillus). In May 2014, this taxon was removed from the tracking list in advance of a formal rank reassessment, as the members of BAWG felt that it no longer needed to be tracked. This move proved to be premature, however, as the formal reassessment which took place on October 30, 2014 resulted in a rank of S3, confirming that the taxon does indeed need to remain on the tracking list. Despite appearing to be frequent within parts of its range, Small Lupine has a restricted range and a high threat level, resulting in the S3 rank. From Oct. 30, 2014, it will be considered a tracked species and appropriate restrictions will again be necessary as for all other tracked taxa.

Please note that every effort has been made to ensure that this list is accurate; however, the lists provided on our lists page are the final authority for this type of information. For the convenience of our users, we have added the rank reassessment and rank change dates into the excel files of our species lists. This will allow users to sort the data and view the most recently assessed taxa.

For more information on the ranking process, please see our ranking page. If you have a plant taxon that you believe should be a priority for a rank reassessment, please contact the SKCDC botanist.

Taxa with S-ranks Recently Reassessed or Tracking Statuses Changed

Scientific Name Common Name New (or current) S-rank Old S-rank Notes
Astragalus kentrophyta var. kentrophyta Prickly Milk-vetch S2 S1 Remains on the tracking list
Carex pauciflora Few-flowered Sedge S4 S2 Removed from tracking list
Cuscuta indecora Pretty Dodder SNR SNR Added to the tracking list, will likely be an S1 once assessed
Erigeron strigosus var. septentrionalis Prairie Fleabane SNR SNR Added to the tracking list, will likely be an S3 once assessed
Lupinus pusillus ssp. pusillus Small Lupine S3 S3 Returned to the tracking list
Scheuchzeria palustris ssp. americana American Scheuchzeria S4 S3 Removed from tracking list


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