Images
Click on image to view full size
Morphology
- Stem
- Erect, simple or branched distally, usually glabrous, rarely pubescent proximally.
- Leaves
- Basal and cauline, alternate, simple. Basal leaves: petiole present; blade oblong to oblanceolate in outline, 1.6 to 8(-12) inches long, .4 to 2.4 inches wide, margins incised to deeply pinnately lobed surfaces glabrous or hirsute abaxially with simple hairs. Cauline leaves: petiole present or absent; blade oblanceolate to oblong or lanceolate, .8 to 4(-7) inches long, .2 to 1.2 inch wide; base auricled and clasping stem.
- Inflorescence
- Racemes, terminal.
- Flower
- Sepals 4, distinct; ovate to oblong, .05 to .16 inch; petals 4, yellow or greenish yellow, oblong to broadly spatulate, .06 to .12 inch, shorter than to as-long-as sepals; stamens 6; style 1; stigma 1.
- Fruit
- Fruiting pedicels ascending, spreading, or recurved, .08 to .24 inch. Siliques, sessile, spreading to ascending, ellipsoid to oblong, short-cylindric, or pear-shaped, .12 to .4 inch long, .06 to .14 inch wide; seeds yellowish brown to brown, heart-shaped, minutely papillose.
Ecology
- Habitat
- Muddy to sandy shores of rivers, streams, and ponds, marshes, ditches, wet depressions.
- Distribution
- Throughout Kansas
Additional Notes
Comments
Rorippa, a Saxon name, and palustris, marshy. Two subspecies have been reported in Kansas: subsp. hispida (Desv.) Jonsell has stems and leaves densely hirsute; subsp. palustris has stems and leaves glabrous or sparsely pubescent.
Quick Facts
- Plant Type
- Wildflower
- Family
- Brassicaceae - Mustard Family
- Life Span
- Annual
- Height
- 4-40 inches
- Origin
- Native
- Last Updated
- 2021-09-12
Color Groups
Yellow Wildflowers
Flowering Period
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Blooms: May, June, July, August, September, October