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Montana Field Guide

Montana Field Guides

Common Hound's-tongue - Cynoglossum officinale

Noxious Weed: Priority 2B
Exotic Species (not native to Montana)

Global Rank: GNR
State Rank: SNA

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

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General Description
Taprooted biennial or short-lived monocarpic perennial. Stems erect, 30–100 cm. Herbage villous. Leaves basal and cauline, petiolate, 7–25 cm long, becoming sessile above; blades oblanceolate to lanceolate. Inflorescence of axillary and terminal racemes; pedicels short, spreading to reflexed at maturity. Flowers: calyx deeply divided, sepals oblong, 5–7 mm long in fruit; corolla salverform, reddish-purple, 4–5 mm long, 6–9 mm across; stamens alternate with the fornices; style short, entire. Nutlets flattened-ovoid, 4–7 mm long, with barbed prickles, spreading at maturity; scar ovate (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Unknown/Undetermined
 


Range Comments
Introduced throughout temperate N. America; native to Europe (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 1653

(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 ground of pastures, fields, roadsides, grasslands, meadows, woodlands, riparian thickets; plains, valleys (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Common Hound's-tongue — Cynoglossum officinale.  Montana Field Guide.  .  Retrieved on , from