Austrian Yellowcress - Rorippa austriaca
Other Names:
Austrian Fieldcress
Non-native Species
Global Rank:
GNR
State Rank:
SNA
Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value:
1
External Links
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).