Malvaceae

• Abutilon theophrasti Medik., Velvetleaf, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Anoda cristata (L.) Schltdl., Crested anoda, Introduced, Weld Co., Photos Phytoimages, USDA_Plants

• Callirhoe involucrata (Torr. & A. Gray) A. Gray, Winecups, Purple poppymallow, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Hibiscus trionum L., Flower of an hour, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Iliamna rivularis (Douglas ex Hook.) Greene, Wild hollyhock, Streambank wild hollyhock, Synonym: Iliamna crandallii (Rydb.) Wiggins, Native, Grand Co., Photos Phytoimages, USDA_Plants

• Malva neglecta Wallr., Common mallow, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Malva verticillata L., Cluster mallow, Synonym: Malva crispa (L.) L., Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

• Sidalcea candida A. Gray, White checker-bloom, Modest mallow, Native, Common, Photos Phytoimages, USDA_Plants

• Sidalcea neomexicana A. Gray, Rocky Mountain checker-bloom, Wild Hollyhock, Native, Common, Photos Phytoimages, USDA_Plants

• Sphaeralcea coccinea (Nutt.) Rydb., Scarlet globemallow, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Sphaeralcea fendleri A. Gray, Fendler's globemallow, Native, Larimer Co., Photos Phytoimages, USDA_Plants

Melanthiaceae

• Trillium ovatum Pursh, Pacific trillium, Native, Jackson Co., Photos Phytoimages, USDA_Plants

• Veratrum californicum T. Durand, California false hellebore, Colorado false hellebore, Synonym: Veratrum tenuipetalum A. Heller. Not listed for Colorado in USDA Plants, Native, Jackson, Grand, Boulder Cos., Photos Phytoimages, USDA_Plants

• Zigadenus elegans Pursh, Mountain death camas, Synonym: Anticlea elegans (Pursh) Rydb., Native, Common, Photos Phytoimages, USDA_Plants

• Zigadenus paniculatus (Nutt.) S. Watson, Foothill deathcamas, Meadow death camas, Synonyms: Toxicoscordion paniculatum (Nutt.) Rydb., Zigadenus venenosus S. Watson, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Zigadenus paniculatus (Nutt.) S. Watson var. gramineus (Rydb.) Ackerfield, Grassy death camas, Synonym: Zigadenus gramineus Rydb., Zigadenus venenosus S. Watson var. gramineus (Rydb.) Walsh ex M. Peck, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Zigadenus virescens (Kunth) J.F. Macbr., Green death camas, Synonym: Anticlea virescens (Kunth) Rydb., Native, Grand Co., Photos Phytoimages, USDA_Plants

Menyanthaceae

• Menyanthes trifoliata L., Buckbean, Water-clover, Native, Uncommon, Photos Phytoimages, USDA_Plants

Molluginaceae

• Mollugo verticillata L., green carpetweed, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

Montiaceae

• Claytonia lanceolata Pursh, Spring beauty, Native, Common, Photos Phytoimages, USDA_Plants

• Claytonia megarhiza (A.Gray) Parry ex S.Watson, Alpine spring beauty, Native, Common, Photos Phytoimages, USDA_Plants

• Claytonia rosea Rydb., Rocky Mountain spring beauty, Western spring beauty, Native, Uncommon, Photos Phytoimages, USDA_Plants

• Lewisia pygmaea (A. Gray) B.L. Rob., Alpine lewisia, Pygmy bitterroot, Synonym: Oreobroma pygmaeum (A. Gray) Howell, Native, Common, Photos Phytoimages, USDA_Plants

• Lewisia rediviva Pursh, Bitteroot, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Lewisia triphylla (S.Watson) Rydb., Threeleaf lewisia, Threeleaf bitterroot, Dwarf spring beauty, Synonym: Erocallis triphylla (S. Watson) Rydb., Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

• Montia chamissoi (Ledeb. ex Spreng.) Greene, Water miner's-lettuce, Synonym: Crunocallis chamissoi (Ledeb. ex Spreng.) Rydb., Native, Common, Photos Phytoimages, USDA_Plants

• Phemeranthus parviflorus (Nutt.) Kiger, Sunbright, Synonym: Talinum parviflorum Nutt., Native, Larimer Co., Photos Phytoimages, USDA_Plants

Moraceae

• Morus alba L., White mulberry, Introduced, Larimer Co., Photos Phytoimages, USDA_Plants

Nyctaginaceae

• Abronia fragrans Nutt. ex Hook., Fragrant snd-verbena, Snowball sand-verbena, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Mirabilis glabra (S. Watson) Standl., Smooth four o'clock, Synonym: Mirabilis carletonii (Standl.) Standl., Mirabilis exaltata (Standl.) Standl, Oxybaphus glaber S. Watson, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Mirabilis hirsuta (Pursh) MacMill., Hairy four o'clock, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Mirabilis lanceolata (Rydb.) Standl., Lanceleaf four o'clock, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Mirabilis linearis (Pursh) Heimerl, Narrowleaf four-o'clock, Synonym: Allionia divaricata Rydb., Mirabilis decumbens (Nutt.) Daniels, Mirabilis diffusa (A. Heller) C.F. Reed, Oxybaphus bodinii Holzinger, Oxybaphus linearis (Pursh) B.L. Rob., Native, Common, Photos Phytoimages, USDA_Plants

• Mirabilis nyctaginea (Michx.) MacMill., Heartleaf four o'clock, Native, Larimer Co., Photos Phytoimages, USDA_Plants

• Tripterocalyx micranthus (Torr.) Hook., Smallflower sand-verbena, Native, Larimer Co., Photos Phytoimages, USDA_Plants

Nymphaeaceae

• Nuphar polysepala Engelm., Rocky Mountain pond-lily, Rocky Mountain pondlily, Rocky Mountain cowlily, yellow pond-lily, Synonyms: Nuphar lutea ssp. polysepala (Engelm.) E.O. Beal, Native, Abundance - Unknown, Photos Phytoimages, USDA_Plants

Oleaceae

• Fraxinus pennsylvanica Marshall, Green ash, Native, Larimer Co., Photos Phytoimages, USDA_Plants