Ruellia drummondiana explained

Ruellia drummondiana (syn. Dipteracanthus drummondianus Nees), also known as Drummond's wild petunia, is a flowering plant endemic to central Texas in the United States.^[1] It was first collected by naturalist Thomas Drummond and first described in 1847.^[2] R. drummondiana stands up to 3' with an herbaceous dark green ridged stem and purple flowers. ^[3] Unlike the majority of Ruellia in the United States, R. drummondiana produces fruit with only 2–4 seeds, as opposed to 6–20 as is common throughout the genus.^[2]

Notes and References

1. Natural Resources Conservation Service. (n.d.). Ruellia drummondiana (Nees) A. Gray. USDA Plants Database. U.S. Department of Agriculture. https://plants.usda.gov/home/plantProfile?symbol=RUDR
2. LONG, R. W. (1966). GENETIC AND MORPHOLOGICAL RELATIONSHIPS OF THE TEXAS ENDEMIC RUELLIA DRUMMONDIANA (ACANTHACEAE). SIDA, Contributions to Botany, 2(6), 419–427. http://www.jstor.org/stable/41966313
3. Ruellia drummondiana. Lady Bird Johnson Wildflower Center – The University of Texas at Austin. (n.d.). https://www.wildflower.org/plants/result.php?id_plant=rudr#:~:text=Size%20Notes%3A%20Up%20to%20about,Flower%3A%20Flowers%2042%20mm%20long.