Kentucky Nature Preserves Rare Plants

Kentucky State Nature Preserves Commission

Didiplis diandra
Family: Lythraceae

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

Global Rank: G5
State Rank: S1S2

Shallow waters, margins of sloughs, ponds, and slow streams. In Ky., it appears to be associated with large old mature oxbow lakes and ponds, which may draw down substantially in the summer.

Species Description:
Annual herb.

Flowering Period: Mid June to mid August.
Fruiting Period: Early July to late August.

Additional Information at NatureServe

Diagnostic Characteristics:
This monotypic aquatic herb is commonly submersed with weak stems. The submersed opposite leaves are linear, sessile and truncate at the base and the leaves above water are are more elliptic in shape and taper at the base. The flowers do not have petals, are greenish and in the axils of the leaves.

Avoid changes in moisture/hydrologic conditions at the site. Changes could result from overstory removal, stream/wetland alteration or impacts due to erosion.

Global Range:

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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