Species Detail Forb

Flower stalk		Yavapai County Native & Naturalized Plants Sisymbrium irio - London rocket Synonyms: Norta irio Plant Form: Forb or Subshrub Family: Brassicaceae
Flower stalk


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Flower and fruit Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)	Leaves Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)	Plant Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)	Fruit Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)

Forb Plant Description

Origin: Introduced Life Cycle: Annual
General Desc: Weedy plant with erect stems that branch from near the base. Leaves are oblong and deeply lobed. Small, pale yellow flowers are clustered at the stem tips.
Identification notes: Basal leaves not rosulate; stem leaves similar to basal leaves; fruiting pedicels narrower than fruit; sparsely pubescent plants; young fruits overtopping flowers distinguishes this from other Sisymbrium sp.
Height: To 3 feet

Habitat

Habitat Description: Irrigated fields, roadsides and waste places.
Plant Communities: Disturbed Areas
Elevation: 100 - 4500 feet

Flower Characteristics

Color: Pale yellow Shape: Regular in round clusters Tubular: N Flowering Period: Dec - Apr
Description: Flowers have 4 petals and are to 1/8 inch long. They are found in terminal clusters at the tips of slender stalks.

Leaf and Stem Characteristics

Leaf Color: Dark green Leaf Type: Simple Leaf Shape: Pinnatifid Leaf Margin: Dissected Leaf Attachment: Basal and alternate Leaves Clasp: N
Hairs: Leaves Spines: N
Leaf Description: Leaves consist of a pointed terminal lobe and 1 to 4 pairs of smaller lobes below; to 8 inches long. Leaves are nearly hairless.

Fruit and Seed Characteristics

Fruit Color: Green
Fruit Type: Pod
Fruit Notes: Long, thin, tubular seed pods are straight or slightly curved to 1-1/2 inches long and less than 1/16 inch wide.
Seed Notes: Seeds are oblong and less than 1/16 inch long.


	Arizona Cooperative Extension Yavapai County 840 Rodeo Dr #C Prescott, AZ 86305 (928) 445-6590	Version 8.0 http://cales.arizona.edu/yavapaiplants/SpeciesDetailForb.php Last Updated: Dec 13, 2022 Content Questions/Comments: Email Matt Halldorson Legal Disclaimer