MADCapHorse - Missouri Botanical Garden

Aronia atropurpurea Britt. = [Aronia arbutifolia ×
melanocarpa = A. × prunifolia (Marsh.)
Rehd.]
Aronia prunifolia (Marsh.) Rehder = [Aronia
arbutifolia × melanocarpa = A. ×
prunifolia (Marsh.) Rehd.]
ARRHENATHERUM Beauv. (Poaceae)
Arrhenatherum avenaceum Beauv., nom. nud. =
Arrhenatherum elatius (L.) Beauv. ex Presl
& Presl
*A. elatius (L.) Beauv. ex Presl & Presl, Tall Oatgrass
= A. avenaceum Beauv., nom. nud.
= A. elatius var. bulbosum (Willd.) Spenner
ARTEMISIA L. (Asteraceae)
*A. abrotanum L., Southernwood, Old-Man
= A. procera Willd.
*A. absinthium L., Wormwood, Absinthe,
Absinthium
*A. biennis Willd., Biennial Wormwood, Sage-
Weed
A. campestris L., Tall Wormwood, Wild Sage
ssp. caudata (Michx.) Hall & Clem.
= A. caudata Michx.
= A. canadensis of NY reports, not Michx.
(and of Day, 1882)
Artemisia canadensis of NY reports, not Michx.
(and of Day, 1882) = Artemisia campestris
L. ssp. caudata (Michx.) Hall & Clem.
Artemisia caudata Michx. = Artemisia campestris
ssp. caudata (Michx.) Hall & Clem.
Artemisia gnaphaloides Nutt. = Artemisia
ludoviciana Nutt. ssp. ludoviciana
*A. ludoviciana Nutt., Western Mugwort, White
Sage, Western Mugwort, Cudweed
*ssp. ludoviciana
= A. ludoviciana varieties including A.
gnaphaloides Nutt.
Artemisia procera Willd. = Artemisia abrotanum L.
*A. vulgaris L., Common Mugwort, Felon-Herb
= A. vulgaris varieties
Arum dracontium L. = Arisaema dracontium (L.)
Schott ex Schott & Endl.
Arum triphyllum L. = Arisaema triphyllum (L.)
Schott ex Schott & Endl.
ASARUM L. (Aristolochiaceae)
18
A. canadense L., Wild ginger
= A. acuminatum (Ashe) Bickn.
= A. canadense var. acuminatum Ashe
= A. canadense var. ambiguum (Bickn.)
Farw.
= A. canadense var. reflexum (Bickn.) B.
Robinson
= A. reflexum Bickn.
ASCLEPIAS L. (Asclepiadaceae)
Asclepias bicknellii Vail = Asclepias exaltata L.
A. exaltata L., Poke Milkweed
= A. bicknellii Vail
= A. phytolaccoides Pursh
A. incarnata L., Swamp Milkweed
Asclepias intermedia Vail = Asclepias syriaca L.
Asclepias phytolaccoides Pursh = Asclepias
exaltata L.
A. quadrifolia Jacq., Four-leaved Milkweed
A. syriaca L., Common Milkweed
= A. cornuti Dec. in DC.
= A. intermedia Vail
A. tuberosa L., Butterfly-weed, Pleurisy-Root,
Orange Milkweed, Tuber-Root, Chigger-
Flower, Indian-Paintbrush
var. interior (Woodson) Shinners
= A. tuberosa ssp. interior Woodson
= A. tuberosa var. tuberosa of NY reports
A. verticillata L., Whorled Milkweed
A. viridiflora L., Green Milkweed
= Acerates viridiflora (Raf.) Eat.
ASIMINA Adams (Annonaceae)
A. triloba (L.) Dunal, Pawpaw
= Annona triloba L.
ASPARAGUS L. (Liliaceae)
*A. officinalis L., Asparagus
Asperula odorata L. = Galium odoratum (L.) Scop.
Aspidium acrostichoides Sw. = Polystichum
acrostichoides (Michx.) Schott.
Aspidium boottii Tuckerm. = [Dryopteris cristata ×
intermedia = D. × boottii (Tuckerm.)
Underw.
Aspidium campyloptera Kunze = Dryopteris
campyloptera (Kunze) Clarkson
Aspidium cristatum (L.) Sw. = Dryopteris cristata
(L.) A. Gray