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Montana Field Guide

Montana Field Guides

Andean Water-milfoil - Myriophyllum quitense

Status Under Review

Global Rank: G4?
State Rank: SNR

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 4

External Links






 
General Description
Stems simple or branched. Leaves 4- to 5-whorled, to 25 mm long, divided into 13 to 21 filiform segments. Bracts 7–10 mm long, larger than fruits. Flowers male and female similar; sepals white; petals 2–3 mm long, quickly deciduous; bracts pectinate, 1–2 mm long; stamens 8. Mericarps ca. 2 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
BC south to CA, AZ,WY, Mexico, S. America. Known from Gallatin County (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 7

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Relative Density

Recency

 

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



Habitat

References
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Citation for data on this website:
Andean Water-milfoil — Myriophyllum quitense.  Montana Field Guide.  .  Retrieved on , from