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Changes to Plant S-ranks
April 4, 2017

At the spring meeting of the Botanical Assessment Working Group (BAWG), reassessments were completed for the ranks of four species: Apocynum cannabinum var. hypericifolium, Castilleja sessiliflora, Lilium philadelphicum var. andinum and Potentilla lasiondonta. A summary of the changes made to these species can be found in the table below.

Please note that every effort has been made to ensure that the summary list below 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 SK CDC botanist.

Scientific Name Common Name New (or current) S-rank Old S-rank Notes
Apocynum cannabinum var. hypericifolium Indian Hemp S4 S3 Removed from the tracking list
Castilleja sessiliflora Downy Paintbrush S3 S3S4 Previously added to the tracking list in 2013, remains on the tracking list
Lilium philadelphicum var. andinum Western Red Lily S4 S3S4 Previously removed from tracking list in 2014, remains untracked
Potentilla lasiodonta Sandhills Cinquefoil S2S3 SNR Remains on the tracking list


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