Kentucky Nature Preserves Rare Plants

Kentucky State Nature Preserves Commission

Blue Scorpion-weed
Phacelia ranunculacea
Family: Hydrophyllaceae

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

Global Rank: G4
State Rank: S3

Alluvial and rich slope forests, often associated with loess soils.

Species Description:
Annual herb.

Flowering Period: Early April to late May.

Additional Information at NatureServe

Diagnostic Characteristics:
This Phacelia differs from other common species in having 1) the stamens included (not exerted) in the corolla; 2) the anthers are not villous (long hairy) and 3) the stems are generally decumbent, that is, weakly laying across the ground rather than erect. It is primarily found in western Kentucky.

Extensive tree removal in the habitat for this species would likely be detrimental due to changes soil moisture and light conditions.

Global Range:
Midwestern endemic; found in the Ohio- Mississippi R. junction in Illinois, Kentucky, Tennessee, Arkansas, and Missouri. Wabash R. in Indiana and Illinois. Reports from Eastern states (Maryland, Virginia, and North Carolina) as well as D.C. are now referred to a different species, Phacelia covillei, but are considered to be P. ranunculacea in many references.

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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