Conradina verticillata NatureServe Explorer Species Reports — NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.
ITIS Reports — Conradina verticillata ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world. When it is not flowering, Cumberland rosemary may resemble other plants with needlelike leaves such as Aster linariifolius, Hypericum densiflorum, and Pycnanthemum tenuifolium. However, none of these other plants have a rosemary aroma
FWS Digital Media Library — The U.S. Fish and Wildlife Service’s National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.
Cumberland rosemary is a shrub which grows about 50 cm high. It has needle-like leaves with an aromatic scent that resembles rosemary. Its flowers are lavender, purple, and more rarely, white. They are 1–2 cm long, with darker spots in the center. In profile, the flowers may have an “S” shape due to the curving of the floral cup. Cumberland rosemary has a bilabiate calyx, 7–9 mm long, with a glandular-hairy surface.
It may be hard to distinguish individual Cumberland rosemary plants by eye. What looks like separate plants can actually be one sprawling plant. This is because Cumberland rosemary’s stems fall over when they grow higher than 30 cm. These horizontal branches will root at the nodes and grow new (vertical) stems. Because the plant lives in a gravelly environment with periodic flooding, sand and rocks can cover up these horizontal connections.