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From: Kennesaw, GA
Region: Southeast
Topic: Plant Identification, Edible Plants, Poisonous Plants
Title: Plant identification in Georgia
Answered by: Nan Hampton
After some confusion about your question on my part (e.g., "Where did you see the question—was it in Mr. Smarty Plants' database?"), I decided to Google "plants that fold their leaves at night" and I believe that I found the site with the photo from Pennsylvania you mentioned finding. Clicking on "View Follow-Ups" at the bottom of their page I found comments from other readers with a name for the plant. It is Senna obtusifolia (Java-bean or sicklepod). Here are more photos. Even though it is a plant native to North America, it is considered an invasive weed in several southeastern states. The long whisker-like green objects that hang from the branches are its seed pods. Poisonous Plants of North Carolina lists the seeds as poisonous if eaten in large quantities. However, the mature seeds after being roasted, have been used as a substitute for coffee—thus, its alternate name of Java-weed or coffeeweed. Additionally, the young shoots can be boiled and eaten as a vegetable.
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