_carota_ L. wild c. _pusillus_ Michx. southwestern c. _Delphinium_ L. larkspur _ajacis_ L. rocket l. _tricorne_ Michx. dwarf l. _virescens_ Nutt. plains l. _Dentaria laciniata_ Muhl. cutleaf toothwort _Descurainia_ Webb & Berthelot tansymustard _pinnata_ (Walt.) Britt. [including _D. intermedia_ (Rydb.) Daniels, & _D. magna_ Rydb.] pinnate t. _sophia_ (L.) Webb flixweed t. _Dianthera_ (see _Justicia_) _Diaperia prolifera_ Nutt. diaperia _Dicentra cucullaria_ (L.) Bernh. dutchmans-breeches _Dicliptera brachiata_ (Pursh) Spreng. dicliptera _Diodia teres_ Walt. rough buttonweed _Ditaxis_ Vahl ditaxis _humilis_ (Engelm. & Gray) Pax low d. _mercurialina_ (Nutt.) Coult. tall d. _Dodecatheon meadia_ L. common shootingstar _Draba_ L. draba _brachycarpa_ Nutt. shortpod d. _cuneifolia_ Nutt. wedgeleaf d. _reptans_ (Lam.) Fern. (_D. caroliniana_ Walt.) carolina d. _Dracopis amplexicaulis_ (Vahl) Cass. (_Rudbeckia a._ Vahl) clasping coneflower _Dyssodia papposa_ (Vent.) Hitchc. prairie dogweed _Echinacea_ Moench echinacea _angustifolia_ DC. blacksamson e. _atrorubens_ Nutt. [including _E. paradoxa_ (Norton) Britt.] yellow e. _pallida_ Nutt. pale e. _Echinocereus_ Engelm. echinocereus _reichenbachii_ (Terscheck) Haage jr. (_E. caespitosus_ Engelm.) lace e. _viridiflorus_ Engelm. greenpitaya e. _Echinocystis lobata_ (Michx.) T. & G. wild mockcucumber _Echium vulgare_ L. blueweed _Eclipta alba_ (L.) Hassk. yerbadetajo _Elephantopus carolinianus_ Willd. elephantsfoot _Ellisia nyctelea_ L. ellisia _Engelmannia pinnatifida_ T. & G. engelmanndaisy _Epilobium_ L. willowweed _angustifolium_ L. fireweed _coloratum_ Biehler purpleleaf w. _leptophyllum_ Raf. (_E. lineare_ of manuals, not Muhl.) narrowleaf w. _Erechtites hieracifolia_ (L.) Raf. American burnweed _Erigeron_ L. (see also _Conyza_) fleabane _annuus_ (L.) Pers. annual f. _bellidiastrum_ Nutt. western f.