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Pest Information

Alkali Weed

Alkali Weed

  • Latin Name: Cressa Truxillensis
  • Common Name: Alkali Weed
  • Other Names: Alkali clover, cressa

Pest Details

Alkali Weed
Alkali Weed
Alkali Weed

Origin:

Native to the western United States, and found from Texas to the Pacific Coast states, and south into Mexico.

Biology:

A low-growing perennial that does best in alkaline or saline soils, but also infests roadsides, cultivated crops, and irrigation or drainage ditchbanks. Propagation is by seeds.

Identification:

The mature plant tends to be low and spreading, with many branches arising from the base. Some of the branches will stay along the soil surface, while others will curve upward to reach a height of only 4 to 8 inches. Stems and leaves all are covered with dense, short, wooly gray hairs, giving it a very fuzzy appearance. Leaves are alternate on the stems, and are oblong to egg-shaped and less than 1/2 inch long. Flowers are white and bell-shaped, appearing on short stalks that arise from the leaf axils of the upper part of the stems. The flowers also have silky hairs on their outside.

Characteristicts Important to Control:

A perennial weed that does best in saline or alkaline soils. Reproduction is only from seed.

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