Russian thistle

Salsola kali

Height: 5–30 cm (2–12 in.). Stems bushy, much-branched
Flower: Regular, small. White or membranous perianth consists of 5 segments, ca. 4 mm (0.2 in.) long in fruit. Broad midrib of tepal extends beyond blade as a spine-like tip. Flowers mostly solitary in the axils.
Leaves: Lower alternate, upper opposite, stalkless. Blade fleshy, hairless or hairy, more than 1 mm (0.04 in.) wide, ca. 20 mm (0.8 in.) long, linear to thread-like, grooved at the base, spine-tipped.

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