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 Plant and basal blades Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA) |  Plant Randers, Jylland, Danmark@http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike | | | | |
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Origin:
Introduced
Life Cycle:
Annual or perennial
General Desc:
Leaves oval-shaped, simple, stemmed; basal leaves wilting early, flowers along elongated stems, bisexual with 4 free sepals and 4 yellow petals, along with 2 longer and 2 shorter stamens.
Identification notes: Erect; upper leaves smaller, mostly short-stalked to stalkless, not clasping; yellow flowers, 4-parted; fruit pedicels are long, spreading, seed capsules not lying flat against the stem.
Height:
1 to 4 feet
Habitat Description: Roadsides, disturbed areas, waste places, cultivated and abandoned fields.
Plant Communities:
Disturbed Areas
Elevation: Below 9800 feet
Color:
Pale yellow
Shape:
Regular in elongated clusters
Tubular:
N
Flowering Period:
May - Sep
Description:
Rounded clusters of stemmed pale yellow flowers along elongated stems, to 3/4 inch wide; 4 petals; 6 stamens.
Leaf Color:
Green
Leaf Type:
Simple
Leaf Shape:
Pinnatifid
Leaf Margin:
Dissected
Leaf Attachment:
Alternate
Leaves Clasp:
N
Hairs:
Stems
Spines:
N
Leaf Description:
Stems slightly hairy; lower dissected leaves larger and stalked, 4 to 8 inches long, toothed. Alternate upper leaves stalkless or nearly so, not clasping, smaller than lower leaves, lance-shaped to narrow, mostly not toothed.
Fruit Color: Reddish-brown, yellow
Fruit Type: Capsule
Fruit Notes: Long, narrow capsules (siliques) split open when mature; ascending, 3/4 to 1-1/2 inches long, roundish in cross-section, with a beak.
Seed Notes: Seeds 1/16 inch long, conspicuously not veined. Not gelatinous.
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