I saw these two wildflower species along the trail when I was visiting Glacier National Park in Montana last weekend. Does anyone know what they are called? I've just begun to learn the names of various wildflowers. Thanks! RON
Thank you! I appreciate it. I believe you are correct. I searched a few websites after reading your messages and the other pics I saw on those sites looked like what I saw. Thanks tipularia!
Not enough ray florets for S. jacobaea (12-15 per flowerhead, compared to 5-6 per flowerhead for the mystery plant). There's not actually many Asteraceae species with 5-6 ray florets; Senecio nemorensis is a European Senecio that does, but I doubt you'd get that in WA (it doesn't rate an USDA profile page). I'm fairly sure it isn't a European species being invasive; check your local native species (which I don't have so much info on).
There's a Key to Groundsels (Senecio Species) on p. 247 of Plants of the Rocky Mountains (Kershaw/MacKinnon/Pojar).