It was about three years ago that I first stumbled upon water, or purple, avens (Geum rivale), a native perennial of some of our soggier soils. I was walking along the Sage Trail, just crossing the boardwalk that rises above a boggy area, when my eyes were caught by a rather unusual flower. It’s purplish, brownish, reddish, yellowish colors stood out while at the same time serving to conceal the flower in its sun- and shade-dappled home. I plunked myself right down on the boardwalk and took out my field guide; I had to know what it was.
Since then, I have encountered water avens on several occasions, and every time I stop and marvel, for this unassuming wildflower is yet another perfect example of one of Mother Nature’s hidden beauties. Not showy like pink ladies slippers, not fragrant like balsam poplar, not social like daisies, it hangs out in habitats that are seldom visited by casual travelers, where its subtle coloration keeps it fairly well hidden.
Water avens is in the rose family, and I’ve seen photographs of the flower that show a definite rose-like form, but when I look at it, I’m more readily reminded of columbines; perhaps that is because dark outer sepals protect the often yellow inner petals, a combination seen in our wild columbines. Not only that, but the flowers droop, their faces hang towards the ground, another columbine-like quality.
When it comes into bloom, this flower attracts several insect pollinators, primarily bumble bees, but also a few flies (like the syrphids) and beetles. However, on the off chance that no insects come around, the plant has a back-up plan. As each flower grows, its stigmas (the female part) ripen first, which prevents self-pollination. Maturation continues, though, and the stamens (the male parts) continue to elongate as they ripen. Eventually the stamens shed their pollen on any remaining stigmas that have not already been cross-pollinated thanks to the efforts nectar- and pollen-seeking insects.
Once fertilized, hooked seeds develop. This is another great survival strategy, for thanks to those hooks, the seeds can hitchhike on the fur of some passing animal to take up housekeeping in a new location, thus spreading the range of the plant beyond its own back yard.
As I’ve mentioned in previous posts, I am interested in the uses to which people have put plants over the years. Some plants have rich histories, full of all sorts of lore and superstition. Others have nothing more to recommend them than their names and locations. I was expecting water avens to fall into the latter category, but one of its common names made me suspect I was wrong: chocolate root.
It turns out that water avens has quite an extensive history of usage, both medicinal and culinary. Many native peoples used it to treat a variety of ailments associated with the stomach, digestion, and even the common cold. In truth, it has anti-inflammatory properties, is antiseptic, and can induce sweating, making it good for treating fevers. I even read that the dried root can be used as a moth repellent. Its most intriguing use, however, was as a substitute for hot chocolate. The rootstock was boiled and made into a chocolate-like beverage. I knew I liked this plant!
Water avens is in bloom from now until the summer ends, so you have a pretty good chance of finding one if you visit wetlands. There is a fair amount of variation in the color of the petals, however. Some are purple, others pink, and still others are yellow. Regardless of petal color, the sepals are dark purple, and the flower droops – both characteristics that are bound to catch your eye. A delightful flower, it is well worth the search to find.