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Plant
habit
trees
shrubs
vines / lianas
herbaceous
ferns & allies
grass-like
aquatic & OBL wetland species
special groups
composites
legumes
milkweeds
mints
orchids
spurges
dicots
monocots
longevity
annual or biennial
perennial
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unarmed
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
Fruit or Cone
fruit consistency at maturity
dry/leathery
fleshy
Rick Williams
Species Count: 776
Adoxaceae
Amaranthaceae
Amaryllidaceae
Apiaceae
Apocynaceae
Asparagaceae
Asteraceae
Athyriaceae
Bartramiaceae
Berberidaceae
Betulaceae
Boraginaceae
Brassicaceae
Bryaceae
Campanulaceae
Caprifoliaceae
Caryophyllaceae
Celastraceae
Cornaceae
Crassulaceae
Cupressaceae
Cyperaceae
Cystopteridaceae
Dennstaedtiaceae
Droseraceae
Dryopteridaceae
Elaeagnaceae
Equisetaceae
Ericaceae
Euphorbiaceae
Fabaceae
Fagaceae
Gentianaceae
Geraniaceae
Grimmiaceae
Grossulariaceae
Haloragaceae
Hypericaceae
Iridaceae
Isoetaceae
Juncaceae
Jungermanniaceae
Lamiaceae
Lentibulariaceae
Liliaceae
Limnanthaceae
Linaceae
Malvaceae
Melanthiaceae
Menyanthaceae
Montiaceae
Onagraceae
Orchidaceae
Orobanchaceae
Orthotrichaceae
Papaveraceae
Phrymaceae
Pinaceae
Plantaginaceae
Poaceae
Polemoniaceae
Polygonaceae
Potamogetonaceae
Pottiaceae
Primulaceae
Pteridaceae
Ranunculaceae
Rhamnaceae
Rosaceae
Rubiaceae
Salicaceae
Santalaceae
Sapindaceae
Saxifragaceae
Scrophulariaceae
Selaginellaceae
Solanaceae
Typhaceae
Urticaceae
Violaceae
Woodsiaceae