Corrugate-seeded Spurge, Ribseed Sandmat, Rib-seed Sandmat, Ridge-seeded Spurge: Chamaesyce glyptosperma (Synonym: Euphorbia glyptosperma) -
Milk Spurge, Prostrate Spurge, Sandmat, Spotted Sandmat, Spotted Spurge: Chamaesyce maculata (Synonyms: Chamaesyce supina, Euphorbia maculata, Euphorbia supina)
Thymeleaf Sandmat, Thyme-leaf Spurge, Thyme-leaved Spurge: Chamaesyce serpyllifolia (Synonyms: Chamaesyce albicaulis, Chamaesyce neomexicana, Chamaesyce serpyllifolia, Chamaesyce serpyllifolia ssp. serpyllifolia, Euphorbia neomexicana, Euphorbia serpyllifolia) -
Caper Spurge, Gopher-plant, Mole-plant, Mole Plant: Euphorbia lathyris (Synonyms: Euphorbia lathyrus, Galarhoeus lathyris, Tithymalus lathyris) -
Petty Spurge: Euphorbia peplus (Synonyms: Galarhoeus peplus, Tithymalus peplus) -
Prairie Spurge, Reticulate-seeded Spurge, Spatulate-leaved Spurge, Warty Spurge: Euphorbia spathulata (Synonym: Euphorbia dictyosperma) -
Milk Spurge, Spotted Sandmat: Euphorbia supina (Synonyms: Chamaesyce maculata, Chamaesyce mathewsii, Chamaesyce tracyi, Euphorbia maculata) -
Wolf's Milk, Leafy Spurge: Euphorbia virgata