Plant Image
Willow Lake area - SS

Yavapai County Native & Naturalized Plants

Chorispora tenella - crossflower

Other Common Names: blue mustard, purple mustard, musk-mustard
Plant Form: Forb

Family: Brassicaceae

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Seed pods
Granite Mtn - Tr 308
Granite Mtn - Tr 308
Plant - spring
Granite Mtn - Tr 308
Plant - summer
Willow Lake area
Forb Plant Description

Origin: Introduced   Life Cycle: Annual
General Desc: A leafy, somewhat spreading annual branched mostly from the base. The green leaves are coarsely-toothed along the margins. The flowers have four narrow, pale purple petals. The plant gives off a disagreeable odor.
Height: To 18 inches


Habitat Description: Disturbed areas and cultivated lands.
Plant Communities: Desert Scrub, Interior Chaparral, Semidesert Grasslands, Pinyon Juniper Woodland, Disturbed Areas
Elevation: 3200 - 7500 feet

Flower Characteristics

Color: Blue to pale purple     Shape: Regular in elongated clusters     Tubular: Y     Flowering Period: Apr - Jun
Description: The flowers have four pale purple petals that are a darker pink at their base.

Leaf and Stem Characteristics

Leaf Color: Green     Leaf Type: Simple     Leaf Shape: Narrow     Leaf Margin: Toothed     Leaf Attachment: Alternate     Leaves Clasp: N
Hairs: Leaves and stems     Spines: N
Leaf Description: The leaves and stems are sparsely to moderately covered with minute gland-tipped hairs. Leaves have wavy or coarsely-toothed margins.

Fruit and Seed Characteristics

Fruit Color: Green   
Fruit Type: Pod
Fruit Notes: The 1-1/2 inch long, narrow seed pods curve upward, with sharp points.

  Arizona Cooperative Extension
Yavapai County
840 Rodeo Dr #C
Prescott, AZ 86305
(928) 445-6590
Version 3.1  
Last Updated: June 15, 2013  
Content Questions/Comments: Email Jeff Schalau  
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