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Montana Field Guide

Montana Field Guides

Dame's Rocket - Hesperis matronalis

Exotic Species (not native to Montana)

Global Rank: G4G5
State Rank: SNA

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

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General Description
Taprooted perennial. Stems 50–100 cm, often branched above. Leaves all cauline, lanceolate, 3–10 cm long, sessile above, dentate. Vestiture of simple and branched hairs. Inflorescence an ebracteate, branched raceme. Flowers purple to white, fragrant; petals 17–23 mm long. Fruit glabrous, linear siliques, constricted between seeds, 5–14 cm × 1–2 mm; style 1–2 mm long; seeds in 1 row per locule; pedicels spreading, 10–25 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Unknown/Undetermined
 


Range Comments
Escaping cultivation throughout much of temperate N. America; introduced from Europe (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 4

(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, disturbed soil of fields and along roads, streams; 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:
Dame's Rocket — Hesperis matronalis.  Montana Field Guide.  .  Retrieved on , from