About Crucianella maritima L.
Crucianella procumbens has leaves arranged in fours and flowers that are nearly whorled. Crucianella erecta has leaves arranged in fours and a corolla that is connivent towards the leaf. Sauv. monsp. 164. It has also been referred to as Rubia maritima (Bauh. pin. 334; Dod. pempt. 357) and Rubia s. Aparine spicata cretensis (Clus. hist. 2. p. 176).