Kentucky Nature Preserves Rare Plants


 
Kentucky State Nature Preserves Commission





Cumberland Rosemary
Conradina verticillata
Family: Lamiaceae

Protection Status:
State Status:  E
USFWS Status: LT

Global Rank: G3
State Rank: S1

P
Habitat:
Cobble bars in large streams in full sun and along sandy riverbanks.

Species Description:
Shrub, evergreen.

Phenology:
Flowering Period: Early May to late June.

Additional Information at NatureServe

Diagnostic Characteristics:
Plant a low (< 5 dm tall), aromatic, perennial evergreen shrub, forming clumps or mats of sprawling branches which root at the nodes. Leaves needle-like, borne in fascicles, making them appear to be whorled; 1-2.5 cm long, with a strong rosemary-like scent.. Corolla tubular and 2-lipped, pinkish-lavender to purple, rarely white, having darker purple dots lining the throat of the corolla-tube; 2-2.5 cm long. Calyx tubular, notably ribbed, about 1 cm. with long hairs. Fruit are smooth, dark brown, tiny, nearly globe-shaped nutlets, four grouped together, nested in the base of the calyx. When in flower, the relatively large, 2-lipped flowers with dots on the corolla tube throat are unmistakable. Its foliage is distinctive at any time with its rosemary-like fragrance, its needle-shaped leaves with pale undersides, and its decumbent lower stem-branches rooting in the sand of its riverside habitat.

Management:
Disturbance of surrounding areas such as ATV trails, timber removal or any activity that results in increased erosion and weed invasion will be detrimental. Avoid changes in moisture/hydrologic conditions at the site. Changes could result from overstory removal, stream/wetland alteration or impacts due to erosion. Exotic pest plants are a threat and should be controlled.

Global Range:
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Known Kentucky Occurrences:

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Data last updated: Wednesday, May 28, 2014
Kentucky State Nature Preserves Commission
801 Teton Trail
Frankfort,KY 40601
Phone: (502) 573-2886
Fax: (502) 573-2355
Email:
naturepreserves@ky.gov
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