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Montana Field Guide

Montana Field Guides

Spotted Water-hemlock - Cicuta maculata

Native Species

Global Rank: G5
State Rank: S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 3

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General Description
Stems erect, 30–100 cm. Leaves basal and cauline; leaflets lanceolate, serrate, 2–7 cm long; tertiary venation enclosing sections of leaf ca. as long as wide, reticulations usually completely closed. Umbels terminal and axillary; rays 1–5 cm long. Mericarps 2–4 mm long; dorsal ribs as wide or wider than the darkened intervals (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Our plants are variety angustifolia Hook.

Species Range
Present
 


Range Comments
Throughout North America (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Observations in Montana Natural Heritage Program Database
Number of Observations: 7

(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
Moist meadows, woodlands, streambanks; plains, valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
  • Additional ReferencesLegend:   View Online Publication
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    • Heywood, V.H. 1971. The biology and chemistry of the Umbelliferae. Academic Press, New York.
    • Lesica, P., M. T. Lavin, and P. F. Stickney. 2012. Manual of Montana Vascular Plants. Fort Worth, TX: BRIT Press. viii + 771 p.
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Citation for data on this website:
Spotted Water-hemlock — Cicuta maculata.  Montana Field Guide.  .  Retrieved on , from