Search Field Guide
Advanced Search
MT Gov Logo
Montana Field Guide

Montana Field Guides

Curveseed Butterwort - Ranunculus testiculatus
Other Names:  Bur Buttercup, Ceratocephala testiculata

Non-native Species

Global Rank: GNR
State Rank: SNA

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 0

External Links






 
General Description
Stems erect, 2–8 cm with villous, entirely basal leaves. Leaf blades 5–15 mm long, oblong to spatulate, divided into 3 to 7 linear lobes. Flowers solitary; petals quickly falling, 3–6 mm long, as long as the hairy sepals. Achenes 1–2 mm long, short-hairy with a blade-like beak ca. 3 mm long; heads cylindric, bristly, to 20 mm long. Disturbed soil of grasslands, along roads; plains, valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Unknown/Undetermined
 


Range Comments
BC to MB, south to CA, NM, KS; introduced from Eurasia (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 24

(Click on the following maps and charts to see full sized version) Map Help and Descriptions
Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat
Disturbed soil of grasslands, along roads; plains, valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
Login Logout
Citation for data on this website:
Curveseed Butterwort — Ranunculus testiculatus.  Montana Field Guide.  .  Retrieved on , from