Search Field Guide
Advanced Search
MT Gov Logo
Montana Field Guide

Montana Field Guides

Austrian Yellowcress - Rorippa austriaca

Exotic Species (not native to Montana)

Global Rank: GNR
State Rank: SNA

Agency Status
MNPS Threat Rank:
C-value: 1

External Links

General Description
Perennial, spreading by horizontal roots or stolons. Stems erect to ascending, 40–80 cm. Leaves basal and cauline; the basal rosette present only the first year; stem leaves 3–11 cm long, oblanceolate, strongly dentate, auriculate-clasping, sessile. Vestiture of sparse, simple hairs below, glabrous above. Petals yellow, 1–2 mm long. Fruit mostly sterile, ovoid silicles 1–2 mm long; the fertile ca. 3 mm long, glabrous; style 0.5–1 mm long; pedicels ascending, 7–10 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
Collected in Jefferson and Park counties; sporadically 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: 0

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


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


Login Logout
Citation for data on this website:
Austrian Yellowcress — Rorippa austriaca.  Montana Field Guide.  .  Retrieved on , from