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Maryland Checklist - Family: Potamogetonaceae - all-time (Total: 21)   

	Photos	Common Name	Genus	Species	Records	Category	Family	Order	Class	Kingdom
1		Floating Pondweed	Potamogeton	natans	4	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
2		Claspingleaf Pondweed	Potamogeton	perfoliatus	60	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
3		Small Pondweed (pusillus)	Potamogeton	pusillus ssp. pusillus	7	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
4		Spiral Pondweed	Potamogeton	spirillus	12	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
5		Sago Pondweed	Stuckenia	pectinata	14	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
6		Variableleaf Pondweed	Potamogeton	gramineus	2	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
7		Horned Pondweed	Zannichellia	palustris	13	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
8		Vasey's Pondweed	Potamogeton	vaseyi	1	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
9		Curly Pondweed	Potamogeton	crispus	58	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
10		Ribbon-leaved Pondweed	Potamogeton	epihydrus	32	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
11		Illinois Pondweed	Potamogeton	illinoensis	15	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
12		Long-leaved Pondweed	Potamogeton	nodosus	33	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
13		Spotted Pondweed	Potamogeton	pulcher	9	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
14		Robbins's Pondweed	Potamogeton	robbinsii	4	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
15		Flatstem Pondweed	Potamogeton	zosteriformis	2	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
16		Large-leaved Pondweed	Potamogeton	amplifolius	12	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
17		Snailseed Pondweed	Potamogeton	bicupulatus	1	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
18		Waterthread Pondweed	Potamogeton	diversifolius	51	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
19		Small Pondweed (tenuissimus)	Potamogeton	pusillus ssp. tenuissimus	0	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
20		Leafy Pondweed	Potamogeton	foliosus	22	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae
21		Small Pondweed	Potamogeton	pusillus	16	Pondweed Family	Potamogetonaceae	Najadales	Magnoliopsida	Plantae