| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| ARHI4 | Argemone hispida Gray | rough pricklypoppy | Papaveraceae
|
| ARINP2 | Argemone intermedia Sweet var. polyanthemos Fedde | Argemone polyanthemos | Papaveraceae
|
| ARIN7 | Argemone intermedia auct. non Sweet | Argemone polyanthemos | Papaveraceae
|
| ARLE4 | Argemone leiocarpa Greene | Argemone mexicana | Papaveraceae
|
| ARMEO | Argemone mexicana L. var. ochroleuca (Sweet) Lindl. | Argemone ochroleuca | Papaveraceae
|
| ARME4 | Argemone mexicana L. | Mexican pricklypoppy | Papaveraceae
|
| ARMUA | Argemone munita Dur. & Hilg. ssp. argentea G.B. Ownbey | flatbud pricklypoppy | Papaveraceae
|
| ARMUM | Argemone munita Dur. & Hilg. ssp. munita | flatbud pricklypoppy | Papaveraceae
|
| ARMUR2 | Argemone munita Dur. & Hilg. ssp. robusta G.B. Ownbey | flatbud pricklypoppy | Papaveraceae
|
| ARMUR | Argemone munita Dur. & Hilg. ssp. rotundata (Rydb.) G.B. Ownbey | flatbud pricklypoppy | Papaveraceae
|
| ARMUA2 | Argemone munita Dur. & Hilg. var. argentea (G.B. Ownbey) Shinners | Argemone munita ssp. argentea | Papaveraceae
|
| ARMUR3 | Argemone munita Dur. & Hilg. var. robusta (G.B. Ownbey) Shinners | Argemone munita ssp. robusta | Papaveraceae
|
| ARMUR4 | Argemone munita Dur. & Hilg. var. rotundata (Rydb.) Shinners | Argemone munita ssp. rotundata | Papaveraceae
|
| ARMU | Argemone munita Dur. & Hilg. | flatbud pricklypoppy | Papaveraceae
|
| AROCS | Argemone ochroleuca Sweet var. stenophylla (Prain) Shinners | Argemone ochroleuca | Papaveraceae
|
| AROC2 | Argemone ochroleuca Sweet | | Papaveraceae
|
| ARPLH3 | Argemone platyceras Link & Otto var. hispida (Gray) Prain | Argemone hispida | Papaveraceae
|
| ARPLR | Argemone platyceras Link & Otto var. rosea Coult. | Argemone sanguinea | Papaveraceae
|
| ARPL2 | Argemone platyceras auct. non Link & Otto | Argemone polyanthemos | Papaveraceae
|
| ARPLA | Argemone pleiacantha Greene ssp. ambigua G.B. Ownbey | southwestern pricklypoppy | Papaveraceae
|
| ARPLP | Argemone pleiacantha Greene ssp. pinnatisecta G.B. Ownbey | southwestern pricklypoppy | Papaveraceae
|
| ARPLP3 | Argemone pleiacantha Greene ssp. pleiacantha | southwestern pricklypoppy | Papaveraceae
|
| ARPLA2 | Argemone pleiacantha Greene var. ambigua (G.B. Ownbey) Shinners | Argemone pleiacantha ssp. ambigua | Papaveraceae
|
| ARPLP4 | Argemone pleiacantha Greene var. pinnatisecta (G.B. Ownbey) Shinners | Argemone pleiacantha ssp. pinnatisecta | Papaveraceae
|
| ARPL3 | Argemone pleiacantha Greene | southwestern pricklypoppy | Papaveraceae
|
| ARPO2 | Argemone polyanthemos (Fedde) G.B. Ownbey | crested pricklypoppy | Papaveraceae
|
| ARRO5 | Argemone rotundata Rydb. | Argemone munita ssp. rotundata | Papaveraceae
|
| ARSA4 | Argemone sanguinea Greene | red pricklypoppy | Papaveraceae
|
| ARSQG | Argemone squarrosa Greene ssp. glabrata G.B. Ownbey | hedgehog pricklypoppy | Papaveraceae
|
| ARSQS | Argemone squarrosa Greene ssp. squarrosa | hedgehog pricklypoppy | Papaveraceae
|
| ARSQG2 | Argemone squarrosa Greene var. glabrata (G.B. Ownbey) Shinners | Argemone squarrosa ssp. glabrata | Papaveraceae
|
| ARSQ | Argemone squarrosa Greene | hedgehog pricklypoppy | Papaveraceae
|
| ARGEM | Argemone L. | pricklypoppy | Papaveraceae
|
| ARSA9 | Argentacer saccharinum (L.) Small | Acer saccharinum | Aceraceae
|
| ARANC2 | Argentina anserina (L.) Rydb. var. concolor (Ser.) Rydb. | Argentina anserina | Rosaceae
|
| ARAN7 | Argentina anserina (L.) Rydb. | silverweed cinquefoil | Rosaceae
|
| ARAR13 | Argentina argentea (L.) Rydb. | Argentina anserina | Rosaceae
|
| AREGE | Argentina egedii (Wormsk.) Rydb. ssp. egedii | Pacific silverweed | Rosaceae
|
| AREGG | Argentina egedii (Wormsk.) Rydb. ssp. groenlandica (Tratt.) A. L�ve | Pacific silverweed | Rosaceae
|
| AREG | Argentina egedii (Wormsk.) Rydb. | Pacific silverweed | Rosaceae
|
| ARGEN | Argentina Hill | silverweed | Rosaceae
|
| ARDA4 | Argillochloa dasyclada (Hack. ex Beal) W.A. Weber | Festuca dasyclada | Poaceae
|
| ARGN2 | Argusia gnaphalodes (L.) Heine | sea rosemary | Boraginaceae
|
| ARSI5 | Argusia sibirica (L.) Dandy | Siberian sea rosemary | Boraginaceae
|
| ARGUS | Argusia Boehmer | sea rosemary | Boraginaceae
|
| ARAN4 | Argyranthemum anethifolium (Willd.) Webb | Argyranthemum foeniculum | Asteraceae
|
| ARFO7 | Argyranthemum foeniculum (Willd.) Schultz-Bip. | dill daisy | Asteraceae
|
| ARGR20 | Argyranthemum gracilis Webb ex Sch. Bip. | Tenerife white marguerite | Asteraceae
|
| ARGYR3 | Argyranthemum Webb | dill daisy | Asteraceae
|
| ARDE4 | �Argyrautia degeneri Sherff | Degener's argyrautia | Asteraceae
|
| ARGYR4 | �Argyrautia Sherff | arhyrautia | Asteraceae
|
| ARNE4 | Argyreia nervosa (Burm. f.) Bojer | elephant creeper | Convolvulaceae
|
| ARSP6 | Argyreia speciosa (L. f.) Sweet | Argyreia nervosa | Convolvulaceae
|
| ARGYR2 | Argyreia Lour. | argyreia | Convolvulaceae
|
| ARDE5 | Argyrochosma dealbata (Pursh) Windham | powdery false cloak fern | Pteridaceae
|
| ARFE5 | Argyrochosma fendleri (Kunze) Windham | Fendler's false cloak fern | Pteridaceae
|
| ARIN11 | Argyrochosma incana (K. Presl) Windham | hairy false cloak fern | Pteridaceae
|
| ARJO2 | Argyrochosma jonesii (Maxon) Windham | Jones' false cloak fern | Pteridaceae
|
| ARLIL | Argyrochosma limitanea (Maxon) Windham ssp. limitanea | southwestern false cloak fern | Pteridaceae
|
| ARLIM | Argyrochosma limitanea (Maxon) Windham ssp. mexicana (Maxon) Windham | southwestern false cloak fern | Pteridaceae
|
| ARLI4 | Argyrochosma limitanea (Maxon) Windham | southwestern false cloak fern | Pteridaceae
|
| ARMI6 | Argyrochosma microphylla (Mett. ex Kuhn) Windham | small-leaf false cloak fern | Pteridaceae
|
| ARGYR5 | Argyrochosma (Sm.) Windham | false cloak fern | Pteridaceae
|
| ARCAK | Argyroxiphium caliginis Forbes var. kai Forbes | Argyroxiphium kai | Asteraceae
|
| ARCA22 | Argyroxiphium caliginis Forbes | eke silversword | Asteraceae
|
| ARFO | Argyroxiphium forbesii St. John | Argyroxiphium virescens | Asteraceae
|
| ARGR5 | Argyroxiphium grayanum (Hbd.) O. Deg. | Hana Forest silversword | Asteraceae
|
| ARKA | Argyroxiphium �kai (Forbes) Keck | | Asteraceae
|
| ARKA2 | Argyroxiphium kauense (Rock & Neal) O.& I. Deg. | kau silversword | Asteraceae
|
| ARMA16 | Argyroxiphium macrocephalum Gray | Argyroxiphium sandwicense ssp. macrocephalum | Asteraceae
|
| ARSAM | Argyroxiphium sandwicense DC. ssp. macrocephalum (Gray) M�rat | Hawai'i silversword | Asteraceae
|
| ARSAS | Argyroxiphium sandwicense DC. ssp. sandwicense | Hawai'i silversword | Asteraceae
|
| ARSAK | Argyroxiphium sandwicense DC. var. kauense Rock & Neal | Argyroxiphium kauense | Asteraceae
|
| ARSA5 | Argyroxiphium sandwicense DC. | Hawai'i silversword | Asteraceae
|
| ARVI8 | Argyroxiphium virescens Hbd. | greensword | Asteraceae
|
| ARGYR | Argyroxiphium DC. | silversword | Asteraceae
|
| ARAD2 | Argythamnia adenophora Gray | glandular silverbush | Euphorbiaceae
|
| ARAD5 | Argythamnia adenophora auct. non Gray | Argythamnia claryana | Euphorbiaceae
|
| ARAP | Argythamnia aphoroides Muell.-Arg. | Hill Country silverbush | Euphorbiaceae
|
| ARAR5 | Argythamnia argyraea Cory | silky silverbush | Euphorbiaceae
|
| ARAS | Argythamnia astroplethes Ingram | Mexican silverbush | Euphorbiaceae
|
| ARBL2 | Argythamnia blodgettii (Torr.) Chapman | Blodgett's silverbush | Euphorbiaceae
|
| ARBRI | Argythamnia brandegeei Millsp. var. intonsa (I.M. Johnston) Ingram ex L.C. Wheeler | Sonoran silverbush | Euphorbiaceae
|
| ARBR3 | Argythamnia brandegeei Millsp. | Sonoran silverbush | Euphorbiaceae
|
| ARCA19 | Argythamnia californica Brandeg. | California silverbush | Euphorbiaceae
|
| ARCA20 | Argythamnia candicans Sw. | sharpleaf silverbush | Euphorbiaceae
|
| ARCL2 | Argythamnia claryana Jepson | desert silverbush | Euphorbiaceae
|
| ARCY | Argythamnia cyanophylla (Woot. & Standl.) Ingram | Charleston Mountain silverbush | Euphorbiaceae
|
| ARFA | Argythamnia fasciculata (Vahl ex A. Juss.) Muell.-Arg. | broom silverbush | Euphorbiaceae
|
| ARHUH | Argythamnia humilis (Engelm. & Gray) Muell.-Arg. var. humilis | low silverbush | Euphorbiaceae
|
| ARHUL | Argythamnia humilis (Engelm. & Gray) Muell.-Arg. var. laevis (Torr.) Shinners | low silverbush | Euphorbiaceae
|
| ARHUL2 | Argythamnia humilis (Engelm. & Gray) Muell.-Arg. var. leiosperma Waterfall | low silverbush | Euphorbiaceae
|
| ARHU5 | Argythamnia humilis (Engelm. & Gray) Muell.-Arg. | low silverbush | Euphorbiaceae
|
| ARLA16 | Argythamnia laevis Torr. | Argythamnia humilis var. laevis | Euphorbiaceae
|
| ARLA12 | Argythamnia lanceolata (Benth.) Muell.-Arg. | narrowleaf silverbush | Euphorbiaceae
|
| ARMEM | Argythamnia mercurialina (Nutt.) Muell.-Arg. var. mercurialina | tall silverbush | Euphorbiaceae
|
| ARMEP | Argythamnia mercurialina (Nutt.) Muell.-Arg. var. pilosissima (Benth.) Shinners | tall silverbush | Euphorbiaceae
|
| ARME5 | Argythamnia mercurialina (Nutt.) Muell.-Arg. | tall silverbush | Euphorbiaceae
|
| ARNE2 | Argythamnia neomexicana Muell.-Arg. | New Mexico silverbush | Euphorbiaceae
|
| ARSE7 | Argythamnia serrata (Torr.) Muell.-Arg. | Yuma silverbush | Euphorbiaceae
|
| ARSI2 | Argythamnia simulans Ingram | plateau silverbush | Euphorbiaceae
|