Appearance
"Arthrocaulon macrostachyum" is a much-branched subshrub growing in clumps up to a metre high. The plants have horizontal woody stems that may root at the nodes, branching into erect, jointed, succulent green stems. The leaves are small and scale-like, clasping the stem but with the tips free. The flowers are minute, produced in threes in terminal, cylindrical spikes. The perianth is conical and has three teeth. The hermaphrodite flowers are wind-pollinated, and the fruit is small, has a membranous pericarp, and contains a single seed.Habitat
"A. macrostachyum" is found around the coasts bordering on the Mediterranean Sea and the Red Sea, and ranges northwards into the Jordan Valley. It is also present in the Middle East, including Iran and Pakistan, where it grows in the muddy coastal swamps immediately inland from the mangroves that border the coast. In the delta region of the Mediterranean coast of Egypt, it dominates some plant communities in the salt marsh habitats.References:
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