Kentucky Nature Preserves Rare Plants


 
Kentucky State Nature Preserves Commission





Roan Mountain Sedge
Carex roanensis
Family: Cyperaceae

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

Global Rank: G2G3
State Rank: S1

P
Habitat:
Mesic forests (Weakley 2011); in KY, wooded south-facing slopes between 3600 and 3800 ft (Jones 2005).

Species Description:
Perennial sedge.

Phenology:
Flowering Period: Early June to late July.
Fruiting Period: Early July to late August.

Additional Information at NatureServe

Diagnostic Characteristics:
This sedge, in the section Hymenochlaenae (the " Gracillimae " group), has achenes with large red spots and these are stipitate. The hirsute perigynia are longer and narrower than most similar species. Culms are fairly uniform in length. about 4-5 dm tall, from short rootstocks; culms 6-8.5 dm high, equaling or somewhat exceeding the leaves. Leaves with well-developed blades, 3-5 to a fertile culm; blades 1.2-4.5 dm long, 2.5-4.5 mm wide. Spikes 3-4, linear-cylindric, 2-5.5 (average 4.5) cm long, 2-3 mm wide. Achenes triangular-ellipsoid, 2.5 mm long, 1 mm wide, tawny brown, densely spotted with dark red, conspicuously jointed with the short, straight style; stigmas 3, dark reddish brown.

Management:
Disturbance of surrounding area such as ATV trails, timber removal or any activity that results in increased erosion and weed invasion will be detrimental. Exotic pest plants are a threat to this species.

Global Range:
Higher elevations in the Blue Ridge, Ridge and Valley, and Central Appalachian ecoregions, reaching its northern limit in the Western Allegheny Plateau region of southwestern Pennsylvania (Smith et al. 2006).

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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