I was recently called out to a site in our CISMA that was ID'd by the caller as giant hogweed. This far into the season, I've really started to sift out what is mis-identified cow parsnip, and what might actually be a valid sighting of hogweed. Getting to the site, I'm having a really difficult time deciding, so I figured I'd post my pictures here for some input. The only in-person viewing I've had of hogweed was at last year's CISMA field trip near Grand Haven, and from my pictures as well as online comparisons I'm still having difficulties! Its not helping the plant is on its way out for the season, so input would be greatly appreciated. Thanks all!
For reference: the plants are topping out at 4' tall, seedheads were 9" across at best. Not sure if hogweed can grow smaller than usually reported? The hairy stems and matching seeds are stumping me.