Revised checklist of New York State plantsRichard Sheppard Mitchell · First published 1997Open the Tome
Platanaceae through Myricaceae of New York StateRichard Sheppard Mitchell · First published 1988Open the Tome
Berberidaceae through Fumariaceae of New York StateRichard Sheppard Mitchell · First published 1983Open the Tome
Ranunculaceae (Crowfoot family) of New York StateRichard Sheppard Mitchell · First published 1982Open the Tome
Rare and endangered vascular plant species in New York StateRichard Sheppard Mitchell · First published 1980Open the Tome
Magnoliaceae through Ceratophyllaceae of New York StateRichard Sheppard Mitchell · First published 1979Open the Tome
Preliminary lists of rare, endangered and threatened plant species in New York StateRichard Sheppard Mitchell · First published 1979Open the Tome
Polygonaceae (buckwheat family) of New York StateRichard Sheppard Mitchell · First published 1978Open the Tome
A guide to aquatic smartweeds (Polygonum) of the United StatesRichard Sheppard Mitchell · First published 1971Open the Tome
Variation in the Polygonum amphibium complex and its taxonomic significanceRichard Sheppard Mitchell · First published 1968Open the Tome