Brown Knapweed (Centaurea jacea), photo by Robert
Some distribution maps on E-Flora BC are red-flagged because they do not correspond to the currently known distribution of a taxon in BC based on recent re-assessments of a species by BC Conservation Data Centre (BCCDC) botanists and other botanists. There may be several reasons for this. There is often a lag tme between re-assessment and incorporation of that information into the databases we use for mapping. This can result in a species appearing more wide-spread or more restricted in distribution than is actually the case. In these cases, we recommend checking with the BC Species and Ecosystem Explorer for current distribution information for red- and blue-listed species or directly checking the specimens to view re-annotations and ID changes. At some point, the databases will be adjusted to incorporate changes, and our maps will reflect this.
Additionally, distribution dots based on observation-only data (and not specimen-based data) may be unreliable. This applies in particular to the IAPP and BEC data layers. If you are assessing a species distribution in BC, we recomment that you turn off trhese data layers on the distribution maps. Only 10% of records from the BEC database are supported by voucher specimens, and the remainder of the records cannot be verified. IAPP records may have no voucher specimens.