Kentucky Nature Preserves Rare Plants

Kentucky State Nature Preserves Commission

Oncophorus raui
Family: Dicranaceae

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

Global Rank: G3
State Rank: S1?

On damp or wet acid rocks, mostly on cliffs and often near waterfalls in the mountains (Crum and Anderson).

Species Description:


Additional Information at NatureServe

Diagnostic Characteristics:
Plants in tufts, 1.5-3 mm high, dark, greenish-yellow or sometimes dark-green or yellow-brown above, blackish-brown below. Leaves 2.5-5 mm long, flexuose-spreading, not much altered on drying, obovate and clasping at the rather short base, abruptly narrowed to a long, linear, subtubulose limb; margins erect, finely serrulate nearly to the shoulders, both blade and margin of subula bistratose.

The habitat for this species is especially sensitive to changes in hydrology and not likely to withstand much alteration. Grazing or browsing pressure, vegetation removal, or any hydrologic changes (i.e. stream alterations road construction) would be detrimental.

Global Range:
Known from Pennsylvania and, perhaps disjunctively, the southern Appalachians (in Georgia, North and South Carolina, and Tennessee); also reported from West Virginia (Crum and Anderson 1981). Range extends into Virginia.

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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