slender Russian thistle, Russian thistle, slender Russian-thistle, spineless Russian thistle
- Salsola collina is an erect annual forb. It is a round, bushy, much-branched plant growing 1-3.5 ft. (0.3-1.1 m) high.
- The branches are slender and soft when young, woody when mature. The leaves are alternate. The first ones start off being dark green, soft, slender, and 1-2.5 in. (2.5-6.4 cm) long.
- Flowers are small, green-white or pink in color.
- About 30 seeds are produced per seed head.
- Ecological Threat
- Salsola collina can threaten native plant ecosystems. This species can reduce yield and quality of numerous agricultural crops. She depletes soil moisture, interferes with tillage operations, and serves as a shelter or food source to many insects, vertebrate pests, and crop diseases. Salsola collina is native to eastern Europe and eastern Asia.
- USDA Forest Service, Forest Health Staff, Newtown Square, PA
- Flora of North America, www.eFloras.org
- USDA NRCS PLANTS
- USDA ARS GRIN
Images from Bugwood.org