@ssinvasives: In the Sea to Sky, you may see several plants flowering in August, but did you know some of them might be invasive? Be on the lookout for Himalayan balsam, tansy ragwort, flowering rush, common burdock, and common tansy! These are all invasive to the Sea to Sky and have negative impacts on our ecosystems. If you see one of these species, report it to us at ssisc.ca/report! #InvasiveSpecies #SeaToSky #SSISC Photo credits: Page 1: Tansy ragwort: L Scott Page 1: Common burdock: Sean Blaney (CC BY-NC) (iNaturalist) Page 1: Flowering Rush: Bob Brett Page 4: Flowering Rush: Yael Orgad (CC BY-NC) (iNaturalist) Page 4: Flowering Rush: Bob Brett Page 5: Common Burdock: Owen and Carol Fawcett (CC BY) (iNaturalist) Page 6: Common Tansy: sandrineguay (CC-BY-NC) (iNaturalist) Page 6: Common Tansy Flowers: sandrineguay (CC-BY-NC) (iNaturalist) Image descriptions: Page 1: Background image of Pemberton backcountry with images of tansy ragwort, common burdock, Himalayan balsam, common tansy and flowering rush. Text reads: “Plants to Spot this Month in the Sea to Sky”. Page 2: Blue background with images of Himalayan balsam. Text reads: “Himalayan Balsam” and “It’s in flower from June to October. Flowers have 5 petals and resemble an old-fashioned policeman’s helmet. It reproduces exclusively by seed, travelling to new sites through water flow and human activity.” And “Do not remove or disturb balsam in August, as it may have gone to seed already, and we don't want to spread it.” Page 3: Blue background with images of tansy ragwort. Text reads: “Tansy Ragwort” and “It’s in flower from June to September. It has bright yellow, daisy-like flower heads arranged in dense clusters near the top of the stem. It reproduces mainly by seeds, which can remain viable for up to 15 years.” Page 4: Blue background with images of flowering rush. Text reads: “Flowering Rush” and “It’s in flower from June to August. It has pinkish-white flowers that form an umbrella-shaped cluster at the end of each stem. It mainly reproduces vegetatively, using rhizomes, bulbils, and fragmentation.” Page 5: Blue background with images of common burdock. Text reads: “Common Burdock” and “It’s in flower from June to September. It has round, pink to purple flowers that grow in tight clusters on short or no stalks. It reproduces mainly by seeds, which can remain viable for up to 15 years.” Page 6: Blue background with images of common tansy. Text reads: “Common Tansy” and “It’s in flower from July to September. It is button-like, yellow, aromatic, and lacks petals. The flowers occur in dense, flat-topped clusters at the top of the stems. It reproduces vegetatively, from roots and creeping rhizomes as well as by seed. Page 7: Background image of Lost Lake. Text reads: “Now You Know! What can you do?” and “Report these plants if you see them!” with an arrow pointing to “ssisc.ca/report”

Sea to Sky Invasives

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Saturday 08 August 2026 19:01:34 GMT