| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| DIHO5 | Dicranum howellii Ren. & Card. | Howell's dicranum moss | Dicranaceae
|
| DILA20 | Dicranum laevidens Williams | Dicranum angustum | Dicranaceae
|
| DILA19 | Dicranum latifolium Amann | wideleaf dicranum moss | Dicranaceae
|
| DILE6 | Dicranum leioneuron Kindb. | dicranum moss | Dicranaceae
|
| DIMAM | Dicranum majus Sm. var. majus | dicranum moss | Dicranaceae
|
| DIMAO | Dicranum majus Sm. var. orthophyllum A. Br. ex Milde | dicranum moss | Dicranaceae
|
| DIMA18 | Dicranum majus Sm. | dicranum moss | Dicranaceae
|
| DIMO6 | Dicranum montanum Hedw. | montane dicranum moss | Dicranaceae
|
| DIMUB | Dicranum muehlenbeckii Bruch & Schimp. in B.S.G. var. brevifolium Lindb. | Dicranum brevifolium | Dicranaceae
|
| DIMUC | Dicranum muehlenbeckii Bruch & Schimp. in B.S.G. var. cirratum (Schimp.) Lindb. in Norrl. | Dicranum brevifolium | Dicranaceae
|
| DIMU70 | Dicranum muehlenbeckii Bruch & Schimp. in B.S.G. | Muehlenbeck's dicranum moss | Dicranaceae
|
| DINE3 | Dicranum neglectum Jur. ex De Not. | Dicranum spadiceum | Dicranaceae
|
| DION | Dicranum ontariense Peters. | Ontario dicranum moss | Dicranaceae
|
| DIPA21 | Dicranum pallidisetum (Bail. in Holz.) Irel. | dicranum moss | Dicranaceae
|
| DIPO70 | Dicranum polysetum Sw. | dicranum moss | Dicranaceae
|
| DIRH | Dicranum rhabdocarpum Sull. | dicranum moss | Dicranaceae
|
| DIRU5 | Dicranum rugosum (Funck) Hoffm. ex Brid. | Dicranum polysetum | Dicranaceae
|
| DIRU6 | Dicranum rupincola (Kindb.) Perss. | Dicranum acutifolium | Dicranaceae
|
| DISA12 | Dicranum sabuletorum Ren. & Card. | Dicranum condensatum | Dicranaceae
|
| DISC71 | Dicranum scoparium Hedw. | dicranum moss | Dicranaceae
|
| DISP7 | Dicranum spadiceum Zett. | dicranum moss | Dicranaceae
|
| DISP8 | Dicranum spurium Hedw. | dicranum moss | Dicranaceae
|
| DIST8 | Dicranum strictum Schleich. ex Mohr | Dicranum tauricum | Dicranaceae
|
| DISU6 | Dicranum subflagellare Card. & Th�r. | Dicranum elongatum | Dicranaceae
|
| DITA | Dicranum tauricum Sapeh. | dicranum moss | Dicranaceae
|
| DIUN8 | Dicranum undulatum Brid. | undulate dicranum moss | Dicranaceae
|
| DIUN9 | Dicranum undulatum Ehrh. ex Web. & Mohr non Brid. | Dicranum polysetum | Dicranaceae
|
| DIVI12 | Dicranum viride (Sull. & Lesq. in Sull.) Lindb. | dicranum moss | Dicranaceae
|
| DICRA8 | Dicranum Hedw. | dicranum moss | Dicranaceae
|
| DILE | Dicraurus leptocladus Hook. f. | Iresine leptoclada | Amaranthaceae
|
| DIAL4 | Dictamnus albus L. | gasplant | Rutaceae
|
| DICTA | Dictamnus L. | dictamnus | Rutaceae
|
| DIGL6 | Dictyonema glabratum (Sprengel) D. Hawksw. | | Corticiaceae
|
| DIGU | Dictyonema guadalupense (Rabenh.) Zahlbr. | Dictyonema sericeum | Corticiaceae
|
| DIMO10 | Dictyonema moorei (Nyl.) Henssen | | Corticiaceae
|
| DIPA16 | Dictyonema pavonium (Sw.) Parmasto | Dictyonema glabratum | Corticiaceae
|
| DISE15 | Dictyonema sericeum (Sw.) Berk. | | Corticiaceae
|
| DICTY | Dictyonema C. Agardh | dictyonema | Corticiaceae
|
| DIDI | Didiplis diandra (Nutt. ex DC.) Wood | waterpurslane | Lythraceae
|
| DIDIP | Didiplis Raf. | didiplis | Lythraceae
|
| DIACD2 | Didymodon acutus (Brid.) Saito var. ditrichoides (Broth.) Zand. | Didymodon rigidulus var. gracilis | Pottiaceae
|
| DIAC6 | Didymodon acutus (Brid.) Saito | Didymodon rigidulus var. gracilis | Pottiaceae
|
| DIAL9 | Didymodon alpigenum Vent. in Jur. | Bryoerythrophyllum recurvirostre | Pottiaceae
|
| DIAS70 | Didymodon asperifolius (Mitt.) Crum et al. | didymodon moss | Pottiaceae
|
| DIAUU | Didymodon australasiae (Grev. & Hook.) Zand. var. umbrosus (C. M�ll) Zand. | Trichostomopsis australasiae | Pottiaceae
|
| DIAU4 | Didymodon australasiae (Grev. & Hook.) Zand. | Trichostomopsis australasiae | Pottiaceae
|
| DIBR9 | Didymodon brachyphyllus (Sull. in Whipple & Ives) Zand. | Didymodon vinealis var. brachyphyllus | Pottiaceae
|
| DICO18 | Didymodon columbianus Herm. & Lawt. | Bryoerythrophyllum columbianum | Pottiaceae
|
| DIFAF | Didymodon fallax (Hedw.) Zand. var. fallax | didymodon moss | Pottiaceae
|
| DIFAR70 | Didymodon fallax (Hedw.)Zand. var. reflexus (Brid.) Zand. | didymodon moss | Pottiaceae
|
| DIFA7 | Didymodon fallax (Hedw.) Zand. | didymodon moss | Pottiaceae
|
| DIFE4 | Didymodon ferrugineus (Schimp. ex Besch.) M. O. Hill | Didymodon fallax var. reflexus | Pottiaceae
|
| DIFU4 | Didymodon fuscoviridis Card. | Didymodon rigidulus var. rigidulus | Pottiaceae
|
| DIGI | Didymodon giganteus (Funck) Jur. | Geheebia gigantea | Pottiaceae
|
| DIHI9 | Didymodon hinckleyi Bartr. | Dicranoweisia cirrata | Dicranaceae
|
| DIIC | Didymodon icmadophilus (Schimp. ex C. M�ll.) Saito | Didymodon rigidulus var. icmadophilus | Pottiaceae
|
| DIIN7 | Didymodon inaequalifolius (Tayl.) Zand. | Bryoerythrophyllum inaequalifolium | Pottiaceae
|
| DIIN8 | Didymodon insulanus (De Not.) M. O. Hill | Didymodon vinealis var. flaccidus | Pottiaceae
|
| DIJO2 | Didymodon johansenii (Williams) Crum | Johansen's didymodon moss | Pottiaceae
|
| DILE7 | Didymodon leskeoides Saito | didymodon moss | Pottiaceae
|
| DILU4 | Didymodon luridus Hornsch. in Spreng. | Didymodon vinealis var. luridus | Pottiaceae
|
| DIMA17 | Didymodon maximus (Syed & Crundw.) M. O. Hill | didymodon moss | Pottiaceae
|
| DIMES | Didymodon mexicanus Besch. var. subulatus Th�r. & Bartr. in Bartr. | Didymodon rigidulus var. subulatus | Pottiaceae
|
| DIMI8 | Didymodon michiganensis (Steere) Saito | Michigan didymodon moss | Pottiaceae
|
| DINI4 | Didymodon nigrescens (Mitt.) Saito | black didymodon moss | Pottiaceae
|
| DIOC7 | Didymodon occidentalis Zand. | Didymodon vinealis var. rubiginosus | Pottiaceae
|
| DIPE8 | Didymodon perobtusus Broth. | didymodon moss | Pottiaceae
|
| DIRED | Didymodon recurvirostris Hedw. var. dentatus (Schimp.) Steere | Bryoerythrophyllum recurvirostre | Pottiaceae
|
| DIRE14 | Didymodon recurvirostris Hedw. | Bryoerythrophyllum recurvirostre | Pottiaceae
|
| DIRE12 | Didymodon reedii Robins. | Reed's didymodon moss | Pottiaceae
|
| DIRE13 | Didymodon revolutus (Card.) Williams | revolute didymodon moss | Pottiaceae
|
| DIRI5 | Didymodon rigidicaulis (C. M�ll.) Saito | Didymodon fallax var. reflexus | Pottiaceae
|
| DIRIG | Didymodon rigidulus Hedw. var. gracilis (Schleich. ex Hook. & Grev.) Zand. | rigid didymodon moss | Pottiaceae
|
| DIRII | Didymodon rigidulus Hedw. var. icmadophilus (Schimp. ex C. M�ll.) Zand. | rigid didymodon moss | Pottiaceae
|
| DIRIR | Didymodon rigidulus Hedw. var. rigidulus | rigid didymodon moss | Pottiaceae
|
| DIRIS | Didymodon rigidulus Hedw. var. subulatus (Th�r. & Bartr. in Bartr.) Zand. | rigid didymodon moss | Pottiaceae
|
| DIRI6 | Didymodon rigidulus Hedw. | rigid didymodon moss | Pottiaceae
|
| DIRU7 | Didymodon rubellus (Bruch & Schimp. in B.S.G.) | Bryoerythrophyllum recurvirostre | Pottiaceae
|
| DIRU8 | Didymodon rufus Lor. in Rabenh. | Didymodon asperifolius | Pottiaceae
|
| DISU4 | Didymodon subandreaeoides (Kindb.) Zand. | didymodon moss | Pottiaceae
|
| DITOD | Didymodon tophaceus (Brid.) Lisa var. decurrens Card. & Th�r. | Didymodon tophaceus | Pottiaceae
|
| DITO4 | Didymodon tophaceus (Brid.) Lisa | didymodon moss | Pottiaceae
|
| DITRN | Didymodon trifarius (Hedw.) R�hl. ssp. nicholsonii (Culm.) Wijk & Marg. | Didymodon vinealis var. nicholsonii | Pottiaceae
|
| DITR8 | Didymodon trifarius (Hedw.) R�hl. | Saelania glaucescens | Ditrichaceae
|
| DITR9 | Didymodon trifarius auct. | Didymodon vinealis var. luridus | Pottiaceae
|
| DIUM | Didymodon umbrosus (C. M�ll.) Zand. | Trichostomopsis australasiae | Pottiaceae
|
| DIVIB | Didymodon vinealis (Brid.) Zand. var. brachyphyllus (Sull. in Whipple & Ives) Zand. | didymodon moss | Pottiaceae
|
| DIVIF2 | Didymodon vinealis (Brid.) Zand. var. flaccidus (Bruch & Schimp. in Schimp.) Zand. | didymodon moss | Pottiaceae
|
| DIVIL2 | Didymodon vinealis (Brid.) Zand. var. luridus (Hornsch. in Spreng.) Zand. | didymodon moss | Pottiaceae
|
| DIVIN | Didymodon vinealis (Brid.) Zand. var. nicholsonii (Culm.) Zand. | Nicholson's didymodon moss | Pottiaceae
|
| DIVIR | Didymodon vinealis (Brid.) Zand. var. rubiginosus (Mitt.) Zand. | didymodon moss | Pottiaceae
|
| DIVIV3 | Didymodon vinealis (Brid.) Zand. var. vinealis | didymodon moss | Pottiaceae
|
| DIVI13 | Didymodon vinealis (Brid.) Zand. | didymodon moss | Pottiaceae
|
| DIDYM2 | Didymodon Hedw. | didymodon moss | Pottiaceae
|
| DIGL2 | Didymopanax gleasonii Britt. & Wilson | Schefflera gleasonii | Araliaceae
|
| DIMO2 | Didymopanax morototonii (Aubl.) Dcne. & Planch. | Schefflera morototonii | Araliaceae
|
| DIFA2 | Diectomis fastigiata (Sw.) Beauv. | foldedleaf grass | Poaceae
|
| DIECT | Diectomis Kunth | foldedleaf grass | Poaceae
|
| DIMA12 | Dieffenbachia maculata (Lodd.) G. Don | Dieffenbachia seguine | Araceae
|
| DIPI7 | Dieffenbachia picta (Lodd.) Schott | Dieffenbachia seguine | Araceae
|
| DISE7 | Dieffenbachia seguine (Jacq.) Schott | dumbcane | Araceae
|