Plant Image
Flower spike
Pioneer Park - Sue Smith


Yavapai County Native & Naturalized Plants

Sisymbrium altissimum - tall tumblemustard

Other Common Names: tall sisymbrium, tall hedge mustard
Plant Form: Forb or Subshrub

Family: Brassicaceae


   
 
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Flowers
Pioneer Park
Sue Smith
Flowers
Pioneer Park
Sue Smith
Stem leaf
Pioneer Park
Sue Smith
Basal leaves
Pioneer Park
Sue Smith
Plant - spring
Pioneer Park
Sue Smith
Forb Plant Description

Origin: Introduced   Life Cycle: Annual   Similar Species: Sisymbrium irio
General Desc: Bushy plant with many branching stems. The lower leaves are deeply lobed. The upper leaves are narrowly lobed. Flowers are small, pale yellow and in loose, terminal clusters. At maturity, the plant breaks off at soil level and tumbles, scattering seed.
Identification notes: Distinguished by large, deeply pinnately lobed basal leaves and very narrow, delicate leaves on the upper part of the stem; long, narrow fruits that are only about as wide as their pedicels (fruiting stalks); and pale, cream or white colored flowers.
Height: To 4 feet

Habitat

Habitat Description: Roadsides, fields and waste places.
Plant Communities: Disturbed Areas
Elevation: 5000 - 7000 feet

Flower Characteristics

Color: Pale yellow     Shape: Regular in elongated clusters     Tubular: N     Flowering Period: Apr - Sep
Description: Flowers have 4 petals and are to 1/2 inch wide, in a loose, terminal cluster.

Leaf and Stem Characteristics

Leaf Color: Dark green     Leaf Type: Simple     Leaf Shape: Pinnatifid     Leaf Margin: Lobed     Leaf Attachment: Alternate     Leaves Clasp: N
Hairs: Leaves and stems     Spines: N
Leaf Description: Lower leaves are coarse and deeply lobed to 11 inches long. The upper leaves are finer with narrow lobes to 4 inches long and are sparser along the stems.

Fruit and Seed Characteristics

Fruit Type: Capsule
Fruit Notes: A 2-valved, slender capsule that is 2 to 4 inches long.
Seed Notes: The small, numerous seeds are yellow to brown and oblong.

  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  
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