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Plant
habit
trees
shrubs
vines / lianas
herbaceous
grass-like
ferns & allies
cactus-like / succulents
aquatic & OBL wetland species
special groups
arums
composites
legumes
milkweeds
mints
orchids
spurges
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longevity
annual or biennial
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armed
Leaves
arrangement/phyllotaxy
basal
alternate
opposite
whorled
fascicled/clustered along stem
blade division
all simple
deeply lobed or divided
some or all fully compound
Flower
ovaries/pistils per flower
1
2-5
more than 5
Walter Fertig and Jason Alexander
Species Count: 809
Alismataceae
Amaranthaceae
Amaryllidaceae
Anacardiaceae
Apiaceae
Apocynaceae
Araceae
Asparagaceae
Aspleniaceae
Asteraceae
Berberidaceae
Betulaceae
Bignoniaceae
Boraginaceae
Brassicaceae
Cactaceae
Campanulaceae
Cannabaceae
Caprifoliaceae
Caryophyllaceae
Celastraceae
Cleomaceae
Colchicaceae
Commelinaceae
Convolvulaceae
Crassulaceae
Cucurbitaceae
Cupressaceae
Cyperaceae
Cystopteridaceae
Dryopteridaceae
Elaeagnaceae
Ephedraceae
Equisetaceae
Ericaceae
Euphorbiaceae
Fabaceae
Fagaceae
Garryaceae
Gentianaceae
Geraniaceae
Grossulariaceae
Hydrangeaceae
Hypericaceae
Iridaceae
Juglandaceae
Juncaceae
Lamiaceae
Liliaceae
Linaceae
Loasaceae
Lythraceae
Malvaceae
Martyniaceae
Melanthiaceae
Meliaceae
Molluginaceae
Montiaceae
Moraceae
Nemacladaceae
Nyctaginaceae
Oleaceae
Onagraceae
Orchidaceae
Orobanchaceae
Papaveraceae
Phrymaceae
Pinaceae
Plantaginaceae
Platanaceae
Poaceae
Polemoniaceae
Polygonaceae
Polypodiaceae
Portulacaceae
Potamogetonaceae
Primulaceae
Pteridaceae
Ranunculaceae
Rhamnaceae
Rosaceae
Rubiaceae
Salicaceae
Santalaceae
Sapindaceae
Sarcobataceae
Saxifragaceae
Scrophulariaceae
Selaginellaceae
Simaroubaceae
Solanaceae
Talinaceae
Tamaricaceae
Typhaceae
Ulmaceae
Urticaceae
Verbenaceae
Viburnaceae
Violaceae
Vitaceae
Woodsiaceae
Zygophyllaceae