Arthrocaulon Piirainen & G.Kadereit
Genus traditionally represented by a single species in North Africa, A. macrostachyum, but 2 new species have recently been differentiated. All of them from coastal or inland saline and hypersaline environments. Species in this genus have traditionally been included in the genus Arthrocnemum Moq.
Ramírez, E., Rufo, L., Sánchez-Mata, D. & de la Fuente, V. 2019. Arthrocaulon meridionalis (Chenopodiaceae), a new species of Mediterranean flora. Mediterranean Botany 40(1): 33-41.
Sukhorukov, A.P. & Nilova, M.V. 2016 A new species of Arthrocnemum (Salicornioideae: Chenopodiaceae-Amaranthaceae) from West Africa, with a revised characterization of the genus. Botany Letters 163 (3): 237-250.
Key to species
1 Dense subshrub. Leaves about 5 mm long. Styles 1-1.5 mm long Arthrocaulon franzii
1 Subshrub with scattered twigs. Leaves 2-3 mm long. Styles (0.1)3(0.7) mm long 2
2 Flowers 3, fused at the base. Central perianth length (1.9)2.1(2.4) mm, lateral (1.8)1.9(2.3) mm. Style 0.1-0.2 mm wide Arthrocaulon macrostachyum
2 Flowers 3, free. Central perianth length (1.2)1.4(1.9) mm, lateral (1)1.3(1.5) mm. Style 0.05-0.1 mm wide Arthrocaulon meridionalis
Updated by: G. Benítez & J. Molero Mesa.