Longspine sandbur forms colonies or monodominant phytocoenoses in association with psammophilous, steppe or ruderal plant species, such us: Cynodon
dactylon, Bromus tectorum, Salsola kali subsp. ruthenica, Xanthium italicum,
Tribulus terrestris, Corispermum nitidum, Plantago arenaria, Polygonum
oxyspermum subsp. raii, Secale sylvestre, Silene conica, Atriplex tatarica, Atriplex
nitens, Polygonum maritimum, Amaranthus retroflexus, Lolium perenne,
Chenopodium album, Solanum nigrum etc. (Table 22.1).
Fig. 22.6 C. longispinus along the access zones to the beach in Mamaia
Fig. 22.7 C. longispinus in the green spaces in Mamaia
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M. Fa ˘ga ˘raș