• Arenaria lanuginosa (Michx.) Rohrb. var. saxosa (A. Gray) Zarucchi, R. L Hartm., & Rabeler, Spreading sandwort, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Cerastium arvense L. ssp. strictum Gaudin, Prairie mouse-ear, Native, Common, Photos Phytoimages, USDA_Plants

• Cerastium beeringianum Cham. & Schltdl., Bering chickweed, Alpine mouse-ear, Synonym: Cerastium beeringianum ssp. earlei (Rydb.) Hultén, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Cerastium brachypodum (Engelm. ex A.Gray) B.L.Rob. ex Britton, Short-stalk mouse-ear, Short-stalk chickweed, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Cerastium fontanum Baumg. ssp. vulgare (Hartm.) Greuter & Burdet, Common mouse-ear, Common chickweed, Big chickweed, Introduced, Uncommon, Photos Phytoimages, USDA_Plants

• Dianthus armeria L., Deptford pink, Introduced, Rare, Photos Phytoimages, USDA_Plants

• Dianthus barbatus L., Sweet William, Not listed in Ackerfield (2015), Introduced, Occasional, Photos Phytoimages, USDA_Plants

• Dianthus deltoides L. ssp. deltoides, Maiden pine, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Drymaria depressa Greene, Pinewoods drymary, Spreading drymaria, Synonym: Drymaria effusa var. depressa Greene. Sandbeach Lake trail, Boulder county, RMNP, Native, Rare, Photos Phytoimages, USDA_Plants

• Eremogone congesta (Nutt.) Ikonn. var. congesta, Ballhead sandwort, Synonym: Arenaria congesta Nutt., Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Eremogone congesta (Nutt.) Ikonn. var. lithophila (Rydb.) Dorn., Ballhead sandwort, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Eremogone fendleri (A. Gray) Ikonn., Fendler's sandwort, Synonym: Arenaria fendleri A. Gray, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Eremogone hookeri (Nutt.) W. A. Weber var. hookeri, Hooker's sandwort, Synonym: Arenaria hookeri Nutt., Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Eremogone hookeri (Nutt.) W. A. Weber var. pinetorum (A. Nelson) Dorn., Hooker's sandwort, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Gypsophila paniculata L., Tall baby's breath, Introduced, Rare, Photos Phytoimages, USDA_Plants

• Gypsophila scorzonerifolia Ser., Glandular baby's breath, Introduced, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Minuartia obtusiloba (Rydb.) House, Alpine stichwort, Alpine sandwort, Synonyms: Arenaria obtusiloba (Rydb.) Fernald, Lidia obtusiloba (Rydb.) Á. Löve & D. Löve, Native, Common, Photos Phytoimages, USDA_Plants

• Minuartia rubella (Wahlenb.) Hiern, Reddish sandwort, Beautiful sandwort, Synonym: Tryphane rubella (Wahlenb.) Rchb., Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Minuartia stricta (Sw.) Hiern, Rock sandwort, Bog stitchwort, Synonym: Alsinanthe stricta (Sw.) Rchb. Not reported from Larimer county in Ackerfield (2015), Native, Rare, Photos Phytoimages, USDA_Plants

• Moehringia lateriflora (L.) Fenzl, Bluntleaf sandwort, Blunt-leaf grove-sandwort, Grove sandwort, Native, Uncommon, Photos Phytoimages, USDA_Plants

• Paronychia depressa Nutt. ex Torr. & A. Gray, Spreading nailwort, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Paronychia jamesii Torr. & A. Gray, James' nailwort, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Paronychia pulvinata A. Gray, Rocky Mountain nailwort, Alpine nailwort, Native, Common, Photos Phytoimages, USDA_Plants

• Paronychia sessiliflora Nutt., Creeping nailwort, Low nailwort, Stemless nailwort, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Pseudostellaria jamesiana (Torr.) W. A. Weber & R. L. Hartm., Tuber starwort, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Sagina caespitosa (J. Vahl) Lange, Tufted pearlwort, No map in Ackerfield (2015) "uncommon or inconspicuous and overlooked in the alpine". USDA Plants shows it just in Canada, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Sagina saginoides (L.) H.Karst., Arctice pearlwort, Native, Common, Photos Phytoimages, USDA_Plants

• Saponaria officinalis L., Bouncing bet, Introduced, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Silene acaulis (L.) Jacq., Moss campion, Moss pink, Synonym: Silene acaulis ssp. subacaulescens (F.N. Williams) Fernald & H. St. John, Native, Common, Photos Phytoimages, USDA_Plants

• Silene antirrhina L., Sleepy catchfly, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Silene csereii Baumg., Biennial campion, Introduced, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Silene dichotoma Ehrh. ssp. dichotoma, Forked catchfly, Introduced, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Silene drummondii Hook. ssp. drummondii, Drummond's campion, Native, Common, Photos Phytoimages, USDA_Plants

• Silene drummondii Hook. ssp. striata (Rydb.) J.K. Morton, Drummond's campion, Synonym: Lychnis striata Rydb., Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Silene hitchguirei Bocq., Mountain campion, Synonym: Gastrolychnis apetala (L.) Tom. & Kozhanch ssp. uralensis (Rupr.) Á. Löve & D. Löve, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Silene kingii (S. Watson) Bocquet, King's Campion, Native, Common, Photos Phytoimages, USDA_Plants

• Silene latifolia Poir, White campion, Synonym: Silene latifolia ssp. alba (Mill.) Greuter & Burdet, Introduced, Uncommon, Photos Phytoimages, USDA_Plants

• Silene noctiflora L., Night-flowering catchfly, Synonym: Melandrium noctiflorum (L.) Fries, Introduced, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Silene scouleri Hook., Simple campion, Halls catchfly, Synonym: Silene scouleri ssp. hallii (S. Watson) C.L. Hitchc. & Maguire, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Silene vulgaris (Moench) Garcke, Maiden's tears, Introduced, Uncommon, Photos Phytoimages, USDA_Plants

• Spergula arvensis L., Stickwort, Corn spurry, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Spergularia media (L.) C. Presl., Greater tea-spurry, Synonym: Spergularia maritima (All.) Choiv., Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Spergularia rubra (L.) J.Presl & C.Presl, Red sandspurry, Introduced, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Spergularia salina J. Presl. & C. Presl., Salt-marsh sandspurry, Synonym: Spergularia marina (L.) Griseb., Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Stellaria borealis J. M. Begelow ssp. borealis, Boreal starwort, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Stellaria calycantha (Ledeb.) Bong., Northern starwort, Northern chickweed, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Stellaria crassifolia Ehrh., Thick-leaved starwort, Thick-leaved chickweed, Fleshy starwort, Not reported for Larimer county in Ackerfield (2015), Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Stellaria graminea L., Grass-like starwort, Weed in Boulder county, Introduced, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Stellaria longifolia Muhl. ex Willd., Long-leaved starwort, Long-leaved stitchwort, Native, Common, Photos Phytoimages, USDA_Plants

• Stellaria longipes Goldie, Long-stalk starwort, Longstalk starwort, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Stellaria media (L.) Vill., Common chickweed, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Stellaria umbellata Turcz., Umbellate starwort, Umbellate chickweed, Umbrella starwort, Native, Common, Photos Phytoimages, USDA_Plants

• Vaccaria hispanica (Mill.) Rauschert, Cow soapwort, Synonym: Vaccaria pyramidata Medic., Introduced, Larimer Co., Photos Phytoimages, USDA_Plants