I was wondering if I talk about dock (Rumex hymenosepalus) every spring, so I looked though my notes. Well, not every spring, but almost. If you’re interested in Rumex in an ethnobotanical sorta way, here is a good place to start your research: Food Plants of the Sonoran Desert by Wendy Hodgson. The photos are mine. I didn’t have a good pic of the red stalk shooting out of the large wavy green leaves, so I recommend the site SEINet for some great photos and more good plant info. Now you know.