Category Archives: Flora Feature

Eup! There It Is: An Introduction to Thoroughworts

Imagine you’re exploring a Piedmont grassland remnant in early August. In the summer heat, the grassland comes alive with the fresh green growth of little bluestem (Schizachyrium scoparium), yellow prairie grass (Sorghastrum nutans), and other warm-season grasses. You spot the bare seed heads of Small’s ragwort (Packera anonyma) whose flowers lit up the grassland in rich yellow during the early summer. Ah, the starry rosinweed is in full bloom, its cheery butter-yellow flowers buzzing with the activity of native bees that dash here and there. And as you look out across the remnant, you see so many white puffs spanning the grassland you wonder if you’ve discovered patches of clouds given vegetable form. These, too, are buzzing with insect visitors—sweat bees, bumble bees, wasps, flower flies, beetles, and more—such an abundance of pollinators that trying to track them all is dizzying. What you’re seeing, my friend, is the fascinating genus of thoroughworts (Eupatorium spp.).

Asclepias, A Genus of Wonder

Hello! I’m David, the newest member of the PDC team and I’m here to tell you about one of my favorite groups of native plants, the milkweeds (Asclepias spp.). I have always been fascinated with their complex pollination system unique to the genus, their ecological importance, and their pleasing flower displays. My interest only grew when, in 2018, when I had the opportunity to go to the Missouri Botanical Garden in St. Louis MO to assist with a project to help conserve Mead’s Milkweed (Asclepias meadii), a federally threatened milkweed from the tallgrass prairies of the Midwest. I’ll give a brief overview of the genus, its importance and highlight species found in the Piedmont region of Virginia. By the end of this article, I hope you’ll become a milkweed fanatic too!