Kentucky Nature Preserves Rare Plants

Kentucky State Nature Preserves Commission

Grass Pink
Calopogon tuberosus
Family: Orchidaceae

Protection Status:
State Status:  E
USFWS Status: {null}

Global Rank: G5
State Rank: S1

Sphagnous bogs, fens, savannas and wet shores; in KY, dry sandy pine-oak woods and swamps.

Species Description:
Perennial herb, orchid.

Flowering Period: Early April to late July.

Additional Information at NatureServe

Diagnostic Characteristics:
This delicate orchid has finely linear or grass-like leaves (5 dm x 4 cm). There is only one leaf per plant and it arises from the base of the plant. There are very few flowers per plant. Also distinctive is the lip which is uppermost in position on the flower.

Exotic pest plants are a threat to this species. The habitat for this species is very specialized and not likely to withstand much alteration. Grazing or browsing pressure, vegetation removal, hydrologic changes (i.e. vegetation removal in the vicinity or upstream, stream alterations) would be detrimental. May tolerate some timber removal if done without excessive soil disturbance (discing/chopping) and if immediate vicinity of plant is protected from debris and direct cutting etc. Disturbance of surrounding slopes such as ATV trails or timber removal or any activity that results in increased erosion and weed invasion will be detrimental.

Global Range:
Widespread throughout the East from Newfoundland, and Ontario south to Florida, Texas, Cuba and the Bahamas, west to the Central and Lake states.

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
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