The very name sumpweed tells you the low regard in which many people hold the plants in the genus Iva. This one is Iva angustifolia, narrowleaf sumpweed. A close relative of ragweed, it likewise causes allergic reactions in susceptible people, including me.
Today’s photograph, which marks the first appearance here of narrowleaf sumpweed, is from a property along US 183 in Cedar Park on August 30th (and I’ve seen plenty more in lots of places since then). The white in the background is from snow-on-the-mountain, Euphorbia marginata.
© 2016 Steven Schwartzman