Pontederiaceae

• Heteranthera limosa (Sw.) Willd., Blue mudplantain, Native, Larimer Co., Photos Phytoimages, USDA_Plants

Portulacaceae

• Portulaca oleracea L., Common purslane, Little hogweed, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

Potamogetonaceae

• Potamogeton alpinus Balb., Alpine pondweed, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Potamogeton amplifolius Tuck., Largeleaf pondweed, Native, Grand Co., Photos Phytoimages, USDA_Plants

• Potamogeton crispus L., Curly pondweed, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Potamogeton diversifolius Raf., Waterthread pondweed, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Potamogeton epihydrus Raf., Ribbonleaf pondweed, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Potamogeton foliosus Raf., Leafy pondweed, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Potamogeton gramineus L., Variable-leaf pondweed, Native, Common, Photos Phytoimages, USDA_Plants

• Potamogeton illinoensis Morong, Illinois pondweed, Native, Jackson Co., Photos Phytoimages, USDA_Plants

• Potamogeton natans L., Floating pondweed, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Potamogeton nodosus Poir., Longleaf pondweed, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Potamogeton perfoliatus L., Claspingleaf pondweed, Native, Jackson Co., Photos Phytoimages, USDA_Plants

• Potamogeton praelongus Wulfen, Whitestem pondweed, Native, Jackson Co., Photos Phytoimages, USDA_Plants

• Potamogeton pusillus L., Small pondweed, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Potamogeton richardsonii (Benn.) Rydb., Richardson's pondweed, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Stuckenia filiformis ssp. alpinus (Blytt) Haynes, D.H. Les & M. Kral, Pondweed, Native, Common, Photos Phytoimages, USDA_Plants

• Stuckenia filiformis (Pers.) Börner, Fineleaf pondweed, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Stuckenia pectinata (L.) Börner, Sago pondweed, Native, Common, Photos Phytoimages, USDA_Plants

• Stuckenia vaginata (Turcz.) Holub, Sheathed pondweed, Native, Larimer Co., Photos Phytoimages, USDA_Plants

Primulaceae

• Anagallis arvensis L., Scarlet pimpernel, Sometimes classified in Myrsinaceae, Introduced, Boulder Co., Photos Phytoimages, USDA_Plants

• Anagallis minima (L.) Krause, Chaffweed, Sometimes classified in Myrsinaceae, Native, Boulder Co., Photos Phytoimages, USDA_Plants

• Androsace chamaejasme ssp. carinata (Torr.) Hultén, Boreal rockjsmine, Rock-jasmine, Native, Common, Photos Phytoimages, USDA_Plants

• Androsace filiformis Retz., Slender rockjasmine, Filiform rockjasmine, Slender-stemmed androsace, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Androsace occidentalis Pursh, Western rockjasmine, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Androsace septentrionalis L., Pygmyflower rockjasmine, Alpine androsace, Native, Common, Photos Phytoimages, USDA_Plants

• Dodecatheon pulchellum (Raf.) Merr., Darkthroat shooting star, Native, Common, Photos Phytoimages, USDA_Plants

• Glaux maritima L., sea milkwort, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Lysimachia ciliata L., fringed loosestrife, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Lysimachia nummularia L., creeping jenny, Introduced, Boulder Co., Photos Phytoimages, USDA_Plants

• Lysimachia thyrsiflora L., Swamp Loosestrife, Synonym: Naumburgia thyrsiflora (L.) Duby, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Primula angustifolia Torr., Alpine primrose, Native, Common, Photos Phytoimages, USDA_Plants

• Primula incana M.E. Jones, Silvery primrose, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Primula parryi A. Gray, Parry Primrose, Native, Common, Photos Phytoimages, USDA_Plants