What’s That? January 26, 2025

Today, I noticed these seed pods wrapped around a tree branch. What plant are they from? They are the fruit from wild yam (Dioscorea villosa). Here is a closer look. I’ll go back in the spring to see if I can get a picture of the leaves and flowers. Have you seen wild yam?

What’s That? June 20, 2025

What are these orange spikes on the serviceberry fruit? It is a fungus called cedar-quince rust (Gymnosporangium clavipes). This fungus actually has an interesting life cycle. It starts with an infection of a plant in the juniper (Juniperus) family. In the late spring after a good rain, the fungus produces a large orange clump on… Continue reading What’s That? June 20, 2025

What’s That? March 10, 2025

While walking on the Crabtree Creek Greenway this weekend, we happened to look up as we were walking under the Route 54 bridge. What is that? It looks like organ pipes made out of mud. That is the nest of the Organ Pipe Mud-dauber wasp (Trypoxylon politum).

What’s That? May 20, 2025

What are these purple and white spots on the goldenrod leaves? They are caused by a bug, a goldenrod gall midge called Asteromyia carbonifera. The bugs carry a fungus (Botryosphaeria dothidea) that protect their larvae from parasitoids. The female Asteromyia lay eggs and deposit the fungus along with the eggs on the goldenrod leaves. The… Continue reading What’s That? May 20, 2025