• Paxistima myrsinites (Pursh) Raf., Oregon boxleaf, Mountain lover, Synonym: Pachystima myrsinites (Pursh) Raf., Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

Ceratophyllaceae

• Ceratophyllum demersum L., Coon's tail, Native, Larimer Co., Photos Phytoimages, USDA_Plants

Chenopodiaceae

• Atriplex argentea Nutt., Silverscale saltbush, Synonyms: Atriplex pachypoda Stutz & G.L. Chu, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Atriplex canescens (Pursh) Nutt., fourwing saltbush, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Atriplex gardneri (Moq.) D. Dietr., Gardner's saltbush, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Atriplex heterosperma Bunge, Twoscale salbush, Synonyms: Atriplex micrantha Ledeb., Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Atriplex hortensis L., Garden orache, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Atriplex obovata Moq., Broadscale, Mound saltbush, Native, Boulder, Jackson, Weld Cos., Photos Phytoimages, USDA_Plants

• Atriplex patula L., Spear saltbush, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Atriplex powellii S. Watson, Powell's saltweed, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Atriplex rosea L., Tumbling saltweed, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Atriplex subspicata (Nutt.) Rydb., Saline saltbush, Synonyms: Atriplex dioica Raf., Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Atriplex truncata (Torr. ex S. Watson) A. Gray, Wedgescale saltbush, Wedge orach, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Axyris amaranthoides L., Russian pigweed, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Bassia hyssopifolia (Pall.) Kuntz, Fivehorn smotherweed, Synonyms: Kochia hyssopifolia (Pall.) Schrad., Introduced, Boulder Co., Photos Phytoimages, USDA_Plants

• Chenopodium album L., Lambsquarters, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Chenopodium album L. var. striatum Krašan, Lateflowering goosefoot, Synonyms: Chenopodium strictum Roth, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Chenopodium atrovirens Rydb., Dark goosefoot, Pinyon goosefoot, Native, Common, Photos Phytoimages, USDA_Plants

• Chenopodium berlandieri Moq. var. zschackii (Murr) Murr ex Asch., Zschack's goosefoot, Native, Common, Photos Phytoimages, USDA_Plants

• Chenopodium capitatum (L.) Asch., Blite goosefoot, Strawberry blite, Squaw paint, Introduced, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Chenopodium desiccatum A.Nelson, Arid goosefoot, Aridland goosefoot, Desert goosefoot, Narrowleaf goosefoot, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Chenopodium foliosum Asch., Leafy goosefoot, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Chenopodium fremontii S.Watson, Fremont's Chenopod, Native, Common, Photos Phytoimages, USDA_Plants

• Chenopodium glaucum L., Oakleaf goosefoot, Oak-leaf goosefoot, Synonyms: Oxybasis glauca (L.) S. Fuentes, Uotila & Borsch, Introduced, Common, Photos Phytoimages, USDA_Plants

• Chenopodium hians Standl., Hians goosefoot, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Chenopodium incanum (S. Watson) A. Heller var. incanum, Mealy goosefoot, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Chenopodium leptophyllum (Nutt. ex Moq.) B.D.Jacks., Narrowleaf goosefoot, Narrowleaf lambsquarters, Narrowleaved goosefoot, Slimleaf goosefoot, Slimleaf lambsquarters, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Chenopodium overi Aellen, Over's goosefoot, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Chenopodium pratericola Rydb., Desert goosefoot, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Chenopodium rubrum L., Red goosefoot, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Chenopodium simplex (Torr.) Raf., Mapleleaf goosefoot, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Chenopodium subglabrum (S. Watson) A. Nelson, Smooth goosefoot, Native, Boulder Co., Photos Phytoimages, USDA_Plants

• Cycloloma atriplicifolium (Spreng.) J.M. Coult., winged pigweed, Native, Boulder Co., Photos Phytoimages, USDA_Plants

• Dysphania botrys (L.) Mosyakin & Clemants, Jerusalem oak goosefoot, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Kochia scoparia (L.) Schrad., Burning bush, Mexican fireweed, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Krascheninnikovia lanata (Pursh) A. Meeuse & Smit, Winterfat, Synonyms: Ceratoides lanata (Pursh) J.T. Howell, Eurotia lanata (Pursh) Moq., Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Monolepis nuttalliana (Schult.) Greene, Nuttall's povertyweed, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Salicornia rubra A. Nelson, Red swampfire, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Salsola collina Pall., Russian thistle, Pall's tumbleweed, Synonyms: Kali collina (Pall.) Akhani & E.H. Roalson, Introduced, Common, Photos Phytoimages, USDA_Plants

• Salsola paulsenii Litv., Barbwire Russian thistle, Synonyms: Kali paulsenii (Litv.) Akhani & E. H. Roalson, Introduced, No county map in Ackerfield (2015) or USDA Plants website. Possibly in Larimer Co. and RMNP, Photos Phytoimages, USDA_Plants

• Salsola tragus L., Russian thistle, Tumbleweed, Synonyms: Kali tragus (L.) Scop., Salsola australis R. Br., Salsola iberica (Senn. & Pau) Botschantzev ex Czerepanov, Introduced, Common, Photos Phytoimages, USDA_Plants

• Sarcobatus vermiculatus (Hook.) Torr., greasewood, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Suaeda calceoliformis (Hook.) Moq., Pursh's seepweed, Synonyms: Suaeda depressa auct. non (Pursh) S. Watson, Suaeda occidentalis (S. Watson) S. Watson, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Suaeda nigra J.F. Macbr., Bush seepweed, Mojave seablite, Synonyms: Suaeda moquinii (Torr.) Greene, Native, Boulder Co., Photos Phytoimages, USDA_Plants

• Suckleya suckleyana (Torr.) Rydb., Poison suckleya, Native, Boulder Co., Photos Phytoimages, USDA_Plants

Cistaceae

• Helianthemum bicknellii Fernald, Hoary frostweed, Synonyms: Crocanthemum bicknellii (Fernald) Barnhart, Native, Boulder Co., Photos Phytoimages, USDA_Plants

Cleomaceae

• Cleome serrulata Pursh, Rocky Mountain Beeplant, Native, Common, Photos Phytoimages, USDA_Plants

• Polanisia dodecandra (L.) DC. ssp. trachysperma (Torr. & A. Gray) Iltis, Red-whisker clammyweed, Native, Larimer Co., Photos Phytoimages, USDA_Plants

Commelinaceae

• Tradescantia occidentalis (Britton) Smyth, Prairie spiderwort, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

Convolvulaceae

• Calystegia macounii (Greene) Brummitt, Macoun's false bindweed, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Calystegia sepium (L.) R. Br., Hedge false bindweed, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Convolvulus arvensis L., Field bindweed, Introduced, Rare, Photos Phytoimages, USDA_Plants

• Cuscuta approximata Bab., Alfalfa dodder, Synonyms: Cuscuta epithymum (L.) L. ssp. approximata (Bab.) Rouy, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Cuscuta indecora Choisy, Bigseed alfalfa dodder, Synonyms: Grammica indecora (Choisy) W.A. Weber, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Evolvulus nuttallianus Schult., Shaggy dwarf morning-glory, Native, Larimer Co., Photos Phytoimages, USDA_Plants

Cornaceae

• Cornus canadensis L., Bunchberry dogwood, Canadian bunchberry, Synonym: Chamaepericlymenum canadense (L.) Asch. & Graebn., Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Cornus sericea ssp. sericea L., Red-osier, Redosier dogwood, Synonym: Cornus stolonifera Michx., Swida sericea (L.) Holub, Native, Common, Photos Phytoimages, USDA_Plants

Crassulaceae

• Crassula aquatica (L.) Schoenl., Water pygmyweed, Synonyms: Tillaea aquatica L. var. drummondii (Torr. & A. Gray) Jeps. Not listed for Colorado in USDA Plants, Native, Boulder Co., Photos Phytoimages, USDA_Plants

• Rhodiola integrifolia Raf., King's crown, Synonyms: Sedum integrifolium (Raf.) A. Nelson, Tolmachevia integrifolia (Raf.) Á. Löve & D. Löve, Native, Common, Photos Phytoimages, USDA_Plants

• Rhodiola rhodantha (A. Gray) H. Jacobsen, Rose crown, Synonyms: Clementsia rhodantha (A. Gray) Rose, Sedum rhodanthum A. Gray, Native, Common, Photos Phytoimages, USDA_Plants

• Sedum lanceolatum Torr., Spearleaf stonecrop, Yellow stonecrop, Synonyms: Sedum stenopetalum Pursh, Native, Common, Photos Phytoimages, USDA_Plants

Cucurbitaceae

• Cucurbita foetidissima Kunth, Buffalo gourd, Stinking gourd, Missouri gourd, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Echinocystis lobata (Michx.) Torr. & A. Gray, Wild cucumber, Synonyms: Micrampelis lobata (Michx.) Greene, Native, Larimer Co., Photos Phytoimages, USDA_Plants