Plant Image
Flowers


Yavapai County Native & Naturalized Plants

Brassica juncea - brown mustard

Synonyms: B. juncea var. crispifolia, B. integrifolia, B. japonica, B. juncea var. japonica, B. willdenowii., Sinapis juncea
Other Common Names: India mustard, Indian mustard, Chinese mustard
Plant Form: Forb or Subshrub

Family: Brassicaceae


   
 
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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
Forb Plant Description

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

Habitat Description: Roadsides, disturbed areas, waste places, cultivated and abandoned fields.
Plant Communities: Disturbed Areas
Elevation: Below 9800 feet


Flower Characteristics

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 and Stem Characteristics

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 and Seed Characteristics

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.



  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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