| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| CHFE4 | Chamaesyce festiva (Sherff) Croizat & Deg. | Chamaesyce deppeana | Euphorbiaceae
|
| CHFL3 | Chamaesyce florida (Engelm.) Millsp. | Chiricahua Mountain sandmat | Euphorbiaceae
|
| CHFOG | Chamaesyce forbesii (Sherff) Croizat & Deg. var. grandifolia Hbd. | Chamaesyce herbstii | Euphorbiaceae
|
| CHFO5 | Chamaesyce forbesii (Sherff) Croizat & Deg. | Chamaesyce clusiifolia | Euphorbiaceae
|
| CHGA3 | Chamaesyce garberi (Engelm. ex Chapman) Small | Garber's sandmat | Euphorbiaceae
|
| CHGA4 | Chamaesyce garheana (Boiss.) Millsp. | Chamaesyce turpinii | Euphorbiaceae
|
| CHGE3 | Chamaesyce gemella (Lag.) Small | Chamaesyce ophthalmica | Euphorbiaceae
|
| CHGEG | Chamaesyce geyeri (Engelm.) Small var. geyeri | Geyer's sandmat | Euphorbiaceae
|
| CHGEW | Chamaesyce geyeri (Engelm.) Small var. wheeleriana (Warnock & M.C. Johnston) Mayfield | Geyer's sandmat | Euphorbiaceae
|
| CHGE2 | Chamaesyce geyeri (Engelm.) Small | Geyer's sandmat | Euphorbiaceae
|
| CHGL10 | Chamaesyce glomerifera Millsp. | Chamaesyce hypericifolia | Euphorbiaceae
|
| CHGL13 | Chamaesyce glyptosperma (Engelm.) Small | ribseed sandmat | Euphorbiaceae
|
| CHGO3 | Chamaesyce golondrina (L.C. Wheeler) Shinners | boquillas sandmat | Euphorbiaceae
|
| CHGR17 | Chamaesyce gracillima (S. Wats.) Millsp. | Mexican sandmat | Euphorbiaceae
|
| CHHA2 | Chamaesyce halemanui (Sherff) Croizat & Deg. | Kauai sandmat | Euphorbiaceae
|
| CHHE3 | Chamaesyce herbstii W.L. Wagner | Herbst's sandmat | Euphorbiaceae
|
| CHHIP | Chamaesyce hillebrandii (Levl.) Croizat & Deg. var. palikeana (O. Deg. & Sherff) O.& I. Deg. | Chamaesyce multiformis var. multiformis | Euphorbiaceae
|
| CHHIW | Chamaesyce hillebrandii (Levl.) Croizat & Deg. var. waimanoana (Sherff) O.& I. Deg. | Chamaesyce multiformis var. multiformis | Euphorbiaceae
|
| CHHI7 | Chamaesyce hillebrandii (Levl.) Croizat & Deg. | Chamaesyce multiformis var. multiformis | Euphorbiaceae
|
| CHHI3 | Chamaesyce hirta (L.) Millsp. | pillpod sandmat | Euphorbiaceae
|
| CHHO5 | Chamaesyce hookeri (Steud.) Arthur | Chamaesyce arnottiana | Euphorbiaceae
|
| CHHO3 | Chamaesyce hooveri (L.C. Wheeler) Koutnik | Hoover's sandmat | Euphorbiaceae
|
| CHHU3 | Chamaesyce humistrata (Engelm.) Small | spreading sandmat | Euphorbiaceae
|
| CHHY2 | Chamaesyce hypericifolia (L.) Millsp. | graceful sandmat | Euphorbiaceae
|
| CHHY3 | Chamaesyce hyssopifolia (L.) Small | hyssopleaf sandmat | Euphorbiaceae
|
| CHIN10 | Chamaesyce indivisa (Engelm.) Millsp. | Chamaesyce dioica | Euphorbiaceae
|
| CHIN9 | Chamaesyce ingallsii Small | Chamaesyce bombensis | Euphorbiaceae
|
| CHJE | Chamaesyce jejuna (M.C. Johnston & Warnock) Shinners | dwarf sandmat | Euphorbiaceae
|
| CHKE | Chamaesyce �keyensis Small | | Euphorbiaceae
|
| CHKU | Chamaesyce kuwaleana (O. Deg. & Sherff) O.& I. Deg. | kokomalei | Euphorbiaceae
|
| CHLA8 | Chamaesyce laredana (Millsp.) Small | Laredo sandmat | Euphorbiaceae
|
| CHLA9 | Chamaesyce lasiocarpa (Klotzsch) Arthur | roadside sandmat | Euphorbiaceae
|
| CHLA10 | Chamaesyce lata (Engelm.) Small | hoary sandmat | Euphorbiaceae
|
| CHLI8 | Chamaesyce linearis (Retz.) Millsp. | Chamaesyce articulata | Euphorbiaceae
|
| CHMA15 | Chamaesyce maculata (L.) Small | spotted sandmat | Euphorbiaceae
|
| CHMA11 | Chamaesyce maculata auct. non (L.) Small | Chamaesyce nutans | Euphorbiaceae
|
| CHMA10 | Chamaesyce mathewsii Small | Chamaesyce maculata | Euphorbiaceae
|
| CHME5 | Chamaesyce melanadenia (Torr.) Millsp. | red-gland spurge | Euphorbiaceae
|
| CHME6 | Chamaesyce mendezii (Boiss.) Millsp. | Mendez's sandmat | Euphorbiaceae
|
| CHME7 | Chamaesyce mesembrianthemifolia (Jacq.) Dugand | coastal beach sandmat | Euphorbiaceae
|
| CHMI7 | Chamaesyce micromera (Boiss. ex Engelm.) Woot. & Standl. | Sonoran sandmat | Euphorbiaceae
|
| CHMIC | Chamaesyce missurica (Raf.) Shinners var. calcicola Shinners | Chamaesyce missurica | Euphorbiaceae
|
| CHMI8 | Chamaesyce missurica (Raf.) Shinners | prairie sandmat | Euphorbiaceae
|
| CHMO3 | Chamaesyce monensis Millsp. | Chamaesyce adenoptera ssp. pergamena | Euphorbiaceae
|
| CHMO5 | Chamaesyce mosieri Small | Chamaesyce garberi | Euphorbiaceae
|
| CHMUH | Chamaesyce multiformis (Hook. & Arn.) Croizat & Deg. var. haleakalana (Sherff) O.& I. Deg. | Chamaesyce skottsbergii var. vaccinioides | Euphorbiaceae
|
| CHMUK | Chamaesyce multiformis (Hook. & Arn.) Croizat & Deg. var. kaalana (Sherff) O.& I. Deg. | Chamaesyce celastroides var. tomentella | Euphorbiaceae
|
| CHMUK2 | Chamaesyce multiformis (Hook. & Arn.) Croizat & Deg. var. kapuleiensis (O. Deg. & Sherff) O. Deg. & Sherff | Chamaesyce skottsbergii var. vaccinioides | Euphorbiaceae
|
| CHMUM3 | Chamaesyce multiformis (Hook. & Arn.) Croizat & Deg. var. manoana (Sherff) O.& I. Deg. | Chamaesyce celastroides var. amplectens | Euphorbiaceae
|
| CHMUM | Chamaesyce multiformis (Hook. & Arn.) Croizat & Deg. var. microphylla (Boiss.) O.& I. Deg. | variable sandmat | Euphorbiaceae
|
| CHMUM2 | Chamaesyce multiformis (Hook. & Arn.) Croizat & Deg. var. multiformis | variable sandmat | Euphorbiaceae
|
| CHMUP | Chamaesyce multiformis (Hook. & Arn.) Croizat & Deg. var. perdita (Sherff) O.& I. Deg. | Chamaesyce celastroides var. tomentella | Euphorbiaceae
|
| CHMUS | Chamaesyce multiformis (Hook. & Arn.) Croizat & Deg. var. sparsiflora (Heller) O.& I. Deg. | Chamaesyce sparsiflora | Euphorbiaceae
|
| CHMUT | Chamaesyce multiformis (Hook. & Arn.) Croizat & Deg. var. tomentella (Boiss.) O.& I. Deg. | Chamaesyce celastroides var. tomentella | Euphorbiaceae
|
| CHMU3 | Chamaesyce multiformis (Hook. & Arn.) Croizat & Deg. | variable sandmat | Euphorbiaceae
|
| CHNA4 | Chamaesyce nashii Small | Chamaesyce blodgettii | Euphorbiaceae
|
| CHNE9 | Chamaesyce neomexicana (Greene) Standl. | Chamaesyce serpyllifolia ssp. serpyllifolia | Euphorbiaceae
|
| CHNU9 | Chamaesyce nutans (Lag.) Small | eyebane | Euphorbiaceae
|
| CHNU3 | Chamaesyce nuttallii (Engelm.) Small | Chamaesyce missurica | Euphorbiaceae
|
| CHOCA | Chamaesyce ocellata (Dur. & Hilg.) Millsp. ssp. arenicola (Parish) Thorne | Contura Creek sandmat | Euphorbiaceae
|
| CHOCO | Chamaesyce ocellata (Dur. & Hilg.) Millsp. ssp. ocellata | Contura Creek sandmat | Euphorbiaceae
|
| CHOCR | Chamaesyce ocellata (Dur. & Hilg.) Millsp. ssp. rattanii (S. Wats.) Koutnik | Rattan's sandmat | Euphorbiaceae
|
| CHOCA2 | Chamaesyce ocellata (Dur. & Hilg.) Millsp. var. arenicola (Parish) N.& P. Holmgren | Chamaesyce ocellata ssp. arenicola | Euphorbiaceae
|
| CHOC | Chamaesyce ocellata (Dur. & Hilg.) Millsp. | Contura Creek sandmat | Euphorbiaceae
|
| CHOLG | Chamaesyce olowaluana (Sherff) Croizat & Deg. var. gracilis (Rock) O.& I. Deg. | Chamaesyce olowaluana | Euphorbiaceae
|
| CHOLL | Chamaesyce olowaluana (Sherff) Croizat & Deg. var. lepidofolia (O. Deg. & Sherff) O.& I. Deg. | Chamaesyce olowaluana | Euphorbiaceae
|
| CHOL3 | Chamaesyce olowaluana (Sherff) Croizat & Deg. | alpine sandmat | Euphorbiaceae
|
| CHOP2 | Chamaesyce ophthalmica (Pers.) Burch | Florida hammock sandmat | Euphorbiaceae
|
| CHOR6 | Chamaesyce orbifolia Alain | Mona Island sandmat | Euphorbiaceae
|
| CHPA30 | Chamaesyce parishii (Greene) Millsp. ex Parish | Parish's sandmat | Euphorbiaceae
|
| CHPA28 | Chamaesyce parryi (Engelm.) Rydb. | Parry's sandmat | Euphorbiaceae
|
| CHPE9 | Chamaesyce pediculifera (Engelm.) Rose & Standl. | Carrizo Mountain sandmat | Euphorbiaceae
|
| CHPE10 | Chamaesyce perennans Shinners | perennial sandmat | Euphorbiaceae
|
| CHPE7 | Chamaesyce petaloidea (Engelm.) Small | Chamaesyce missurica | Euphorbiaceae
|
| CHPI3 | Chamaesyce pinetorum Small | Chamaesyce deltoidea ssp. pinetorum | Euphorbiaceae
|
| CHPL3 | Chamaesyce platysperma (Engelm. ex S. Wats.) Shinners | flatseed sandmat | Euphorbiaceae
|
| CHPOH | Chamaesyce polycarpa (Benth.) Millsp. ex Parish var. hirtella (Boiss.) Millsp. ex Parish | Chamaesyce polycarpa | Euphorbiaceae
|
| CHPOS2 | Chamaesyce polycarpa (Benth.) Millsp. ex Parish var. simulans (L.C. Wheeler) Shinners | Chamaesyce simulans | Euphorbiaceae
|
| CHPO12 | Chamaesyce polycarpa (Benth.) Millsp. ex Parish | smallseed sandmat | Euphorbiaceae
|
| CHPO6 | Chamaesyce polygonifolia (L.) Small | seaside sandmat | Euphorbiaceae
|
| CHPOK | Chamaesyce porteriana Small var. keyensis (Small) Burch | Chamaesyce keyensis | Euphorbiaceae
|
| CHPOP3 | Chamaesyce porteriana Small var. porteriana | Porter's sandmat | Euphorbiaceae
|
| CHPOS | Chamaesyce porteriana Small var. scoparia (Small) Burch | Porter's sandmat | Euphorbiaceae
|
| CHPO7 | Chamaesyce porteriana Small | Porter's sandmat | Euphorbiaceae
|
| CHPO11 | Chamaesyce portoricensis (Urban) Millsp. | Chamaesyce turpinii | Euphorbiaceae
|
| CHPR9 | Chamaesyce preslii (Guss.) Arthur | Chamaesyce nutans | Euphorbiaceae
|
| CHPR6 | Chamaesyce prostrata (Ait.) Small | prostrate sandmat | Euphorbiaceae
|
| CHPY3 | Chamaesyce pycnanthema (Engelm.) Millsp. | Chamaesyce capitellata | Euphorbiaceae
|
| CHRA4 | Chamaesyce rafinesquei (Greene) Arthur | Chamaesyce vermiculata | Euphorbiaceae
|
| CHREH | Chamaesyce remyi (Gray ex Boiss.) Croizat & Deg. var. hanaleiensis (Sherff) O.& I. Deg. | Remy's sandmat | Euphorbiaceae
|
| CHREK2 | Chamaesyce remyi (Gray ex Boiss.) Croizat & Deg. var. kahiliana (Sherff) O.& I. Deg. | Chamaesyce remyi var. remyi | Euphorbiaceae
|
| CHREK | Chamaesyce remyi (Gray ex Boiss.) Croizat & Deg. var. kauaiensis (O. Deg. & Sherff) O.& I. Deg. | Remy's sandmat | Euphorbiaceae
|
| CHREL | Chamaesyce remyi (Gray ex Boiss.) Croizat & Deg. var. leptopoda (Sherff) O.& I. Deg. | Chamaesyce halemanui | Euphorbiaceae
|
| CHREL2 | Chamaesyce remyi (Gray ex Boiss.) Croizat & Deg. var. lydgatei (Sherff) O.& I. Deg. | Chamaesyce remyi var. remyi | Euphorbiaceae
|
| CHREM | Chamaesyce remyi (Gray ex Boiss.) Croizat & Deg. var. molesta (Sherff) O.& I. Deg. | Chamaesyce halemanui | Euphorbiaceae
|
| CHREO | Chamaesyce remyi (Gray ex Boiss.) Croizat & Deg. var. olokelensis (Skottsberg & Sherff) O.& I. Deg. | Chamaesyce remyi var. remyi | Euphorbiaceae
|
| CHREP | Chamaesyce remyi (Gray ex Boiss.) Croizat & Deg. var. pteropoda (Sherff) O.& I. Deg. | Chamaesyce remyi var. remyi | Euphorbiaceae
|
| CHRER | Chamaesyce remyi (Gray ex Boiss.) Croizat & Deg. var. remyi | Remy's sandmat | Euphorbiaceae
|
| CHREW3 | Chamaesyce remyi (Gray ex Boiss.) Croizat & Deg. var. wahiawana (Sherff) O.& I. Deg. | Chamaesyce remyi var. remyi | Euphorbiaceae
|
| CHREW2 | Chamaesyce remyi (Gray ex Boiss.) Croizat & Deg. var. waimeana (Sherff) O.& I. Deg. | Chamaesyce remyi var. remyi | Euphorbiaceae
|
| CHREW | Chamaesyce remyi (Gray ex Boiss.) Croizat & Deg. var. wilkesii (Sherff) O.& I. Deg. | Chamaesyce halemanui | Euphorbiaceae
|