Brunnichia

Brunnichia is a genus of flowering plants in the family Polygonaceae. It includes a single species, Brunnichia ovata, commonly known as redvine, American buckwheat vine or '''ladies' eardrops', a woody vine native to the central and southeastern United States.

==Description== Brunnichia ovata is made up of an alternate leaf arrangement of its simple leaves. It is regarded as deciduous and the blades of its leaves are ovate or having an oval shape. Its leaves can range anywhere from 2 to 5 inches in length and its petioles are usually short. The flowering of the Brunnichia ovata species is typically seen from June to July and they are greenish in color. The fruit of the species is coined by its common name, “ear-drops” due to its appearance of hanging earrings. The stems shows proximal portions to be woody and the distal portions of the shoots to be herbaceous. Hence the species is regarded as a semi-woody vine. The optimum temperature found for germination of the species is 35 °C in both soil and Petri dishes. Below or above, 25 °C and 40 °C, respectively will yield no germination or emergence. Furthermore it requires altitude ranges of 0 to 200 meters and can grow up to 40 feet tall.