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ACERACEAE<br />
Acer circinatum Pursh<br />
vine maple<br />
Acer glabrum Torr.<br />
Rocky Mountain maple<br />
Acer glabrum var. douglasii (Hook.) Dippel<br />
Douglas maple<br />
Acer grandidentatum Nutt.<br />
bigtooth maple<br />
Acer macrophyllum Pursh<br />
bigleaf maple<br />
Acer negundo L.<br />
boxelder<br />
Acer negundo var. negundo L.<br />
boxelder<br />
Acer negundo var. violaceum (Kirchn.) Jaeger<br />
boxelder<br />
ACORACEAE<br />
Acorus americanus (Raf.) Raf.<br />
sweetflag<br />
ALISMATACEAE<br />
Alisma gramineum Lej.<br />
narrowleaf water plantain<br />
Alisma plantago-aquatica L.<br />
American waterplantain<br />
Alisma triviale Pursh<br />
northern water plantain<br />
Baldellia ranunculoides (L.) Parl.<br />
lesser waterplantain<br />
Machaerocarpus californicus (Torr. ex Benth.) Small<br />
California damsonium<br />
Sagittaria latifolia Willd.<br />
broadleaf arrowhead<br />
Sagittaria latifolia var. latifolia Willd.<br />
broadleaf arrowhead<br />
Sagittaria subulata (L.) Buch.<br />
awlleaf arrowhead<br />
AMARANTHACEAE<br />
Amaranthus albus L.<br />
prostrate pigweed<br />
Amaranthus blitoides S. Wats.<br />
mat amaranth<br />
Amaranthus californicus (Moq.) S. Wats.<br />
California amaranth<br />
Amaranthus cruentus L.<br />
red amaranth<br />
Amaranthus hybridus L.<br />
slim amaranth<br />
Amaranthus powellii S. Wats.<br />
Powell's amaranth<br />
Amaranthus retroflexus L.<br />
redroot amaranth<br />
Amaranthus rudis Sauer<br />
tall amaranth<br />
ANACARDIACEAE<br />
Rhus diversiloba Torr. & Gray<br />
= Toxicodendron diversilobum<br />
Rhus glabra L.<br />
smooth sumac<br />
Rhus radicans var. rydbergii (Small ex Rydb.) Rehd.<br />
= Toxicodendron rydbergii<br />
Rhus toxicodendron var. vulgaris Michx.<br />
= Toxicodendron rydbergii<br />
Toxicodendron diversilobum (Torr. & Gray) Greene<br />
Pacific poison oak<br />
Toxicodendron rydbergii (Small ex Rydb.) Greene<br />
western poison ivy<br />
APOCYNACEAE<br />
Apocynum X floribundum Greene (pro sp.)<br />
intermediate dogbane<br />
Apocynum androsaemifolium L.<br />
spreading dogbane<br />
Apocynum androsaemifolium ssp. androsaemifolium L.<br />
spreading dogbane<br />
Apocynum androsaemifolium ssp. androsaemifolium var.<br />
androsaemifolium L.<br />
spreading dogbane<br />
Apocynum androsaemifolium ssp. androsaemifolium var. incanum A.<br />
DC.<br />
spreading dogbane<br />
WASHINGTON FLORA Checklist Page 2
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