| Juncus annuus Krock. | Synonym |  | IOPI | 
	
		| Juncus bulbosus f. fluitans (Lam.) F.Navarro, J.Sánchez & C.J.Valle | Synonym |  | IOPI | 
	
		| Juncus bulbosus var. fluitans (Lam.) Beck | Synonym |  | IOPI | 
	
		| Juncus bulbosus f. geniculatus (Asch. & Graebn.) Sóo | Synonym |  | IOPI | 
	
		| Juncus bulbosus subsp. kochii (F.W.Schultz) Reichg. | Synonym |  | IOPI | 
	
		| Juncus bulbosus var. maroccanus Font Quer | Synonym |  | IOPI | 
	
		| Juncus bulbosus f. maroccanus (Font Quer) Maire | Synonym |  | IOPI | 
	
		| Juncus bulbosus f. nanus (Peterm.) Sóo | Synonym |  | IOPI | 
	
		| Juncus bulbosus f. pygmaeus (T.Marsson) Fern.-Carv. & F.Navarro | Synonym |  | IOPI | 
	
		| Juncus bulbosus f. submersus (Glück) Sóo | Synonym |  | IOPI | 
	
		| Juncus bulbosus var. uliginosus (Roth) Beck | Synonym |  | IOPI | 
	
		| Juncus bulbosus f. uliginosus (Roth) Fern.-Carv. | Synonym |  | IOPI | 
	
		| Juncus bulbosus f. welwitschii (Hochst. ex Steud.) Sóo | Synonym |  | IOPI | 
	
		| Juncus confervaceus St.-Lag. | Synonym |  | IOPI | 
	
		| Juncus fasciculatus Schrank [Illegitimate] | Synonym |  | IOPI | 
	
		| Juncus fluitans Lam. | Synonym |  | IOPI | 
	
		| Juncus husnotii (Rouy) Prain | Synonym |  | IOPI | 
	
		| Juncus kochii F.W.Schultz | Synonym |  | IOPI | 
	
		| Juncus setifolius Ehrh. [Invalid] | Synonym |  | IOPI | 
	
		| Juncus subverticillatus Wulfen | Synonym |  | IOPI | 
	
		| Juncus subverticillatus var. fluitans (Lam.) Wallr. | Synonym |  | IOPI | 
	
		| Juncus supinus Moench | Synonym |  | IOPI | 
	
		| Juncus supinus var. confervaceus (St.-Lag.) Rouy | Synonym |  | IOPI | 
	
		| Juncus supinus f. confervaceus (St.-Lag.) Buchenau | Synonym |  | IOPI | 
	
		| Juncus supinus var. cylindricus Husn. | Synonym |  | IOPI | 
	
		| Juncus supinus var. erectus Neilr. | Synonym |  | IOPI | 
	
		| Juncus supinus var. erectus E.Lehm. | Synonym |  | IOPI | 
	
		| Juncus supinus var. fluitans (Lam.) Fr. | Synonym |  | IOPI | 
	
		| Juncus supinus f. fluitans (Lam.) Neuman | Synonym |  | IOPI | 
	
		| Juncus supinus subsp. fluitans (Lam.) K.Richt. | Synonym |  | IOPI | 
	
		| Juncus supinus subsp. kochii (F.W.Schultz) Nyman | Synonym |  | IOPI | 
	
		| Juncus supinus var. kochii (F.W.Schultz) Syme | Synonym |  | IOPI | 
	
		| Juncus supinus f. nanus Peterm. | Synonym |  | IOPI | 
	
		| Juncus supinus var. nigritellus W.D.J.Koch [Illegitimate] | Synonym |  | IOPI | 
	
		| Juncus supinus var. nodosus Lange | Synonym |  | IOPI | 
	
		| Juncus supinus var. pygmaeus T.Marsson | Synonym |  | IOPI | 
	
		| Juncus supinus var. repens Gren. & Godr. | Synonym |  | IOPI | 
	
		| Juncus supinus f. submersus Glück | Synonym |  | IOPI | 
	
		| Juncus supinus var. terrestris Lange | Synonym |  | IOPI | 
	
		| Juncus supinus subsp. uliginosus (Roth) K.Richt. | Synonym |  | IOPI | 
	
		| Juncus supinus var. uliginosus (Roth) Fr. | Synonym |  | IOPI | 
	
		| Juncus supinus var. viviparus (Relhan) Willk. & Lange | Synonym |  | IOPI | 
	
		| Juncus supinus var. welwitschii (Hochst. ex Steud.) Cout. | Synonym |  | IOPI | 
	
		| Juncus supinus subsp. welwitschii (Hochst. ex Steud.) K.Richt. | Synonym |  | IOPI | 
	
		| Juncus uliginosus Roth | Synonym |  | IOPI | 
	
		| Juncus uliginosus var. fluitans (Lam.) Spenn. | Synonym |  | IOPI | 
	
		| Juncus uliginosus var. minor Hook. | Synonym |  | IOPI | 
	
		| Juncus viviparus Relhan | Synonym |  | IOPI | 
	
		| Juncus welwitschii Hochst. ex Steud. | Synonym |  | IOPI | 
	
		| Phylloschoenus supinus (Moench) Fourr. [Invalid] | Synonym |  | IOPI | 
	
		| Tristemon uliginosum (Roth) Raf. | Synonym |  | IOPI |