Table 2.

A listing of species used in the evaluation of phone apps for plant identification. Percentages of correct responses across 6 apps are shown for bark and leaf images for both identification and suggestion at genus and species levels.

Genus identificationSpecies identificationGenus suggestionsSpecies suggestions
FamilyGenusSpeciesBarkLeafBarkLeafBarkLeafBarkLeaf
AltingiaceaeLiquidambarstyraciflua20%100%20%100%65%100%65%100%
AnacardiaceaeRhustyphina25%95%20%65%45%100%35%95%
BetulaceaeBetulaallegheniensis85%25%35%15%100%70%45%65%
BetulaceaeBetulalenta75%45%50%45%95%90%55%50%
BetulaceaeBetulanigra90%85%65%50%95%95%100%95%
BetulaceaeBetulapopulifolia95%100%35%40%95%100%70%100%
BetulaceaeCarpinuscaroliniana80%80%50%30%95%100%65%85%
CornaceaeCornusflorida50%95%50%60%75%100%75%100%
CupressaceaeJuniperusvirginiana20%100%20%80%80%100%80%90%
CupressaceaeTaxodiumdistichum50%95%50%90%95%100%95%100%
FabaceaeCerciscanadensis5%95%5%90%5%100%5%100%
FabaceaeGleditsiatriacanthos45%85%45%85%80%100%80%100%
FabaceaeRobiniapseudoacacia50%100%50%100%70%100%70%100%
FagaceaeCastaneadentata25%100%25%90%50%100%50%100%
FagaceaeFagusgrandifolia90%100%70%95%100%100%90%100%
FagaceaeQuercusalba70%100%55%70%95%100%85%100%
FagaceaeQuercusbicolor10%100%0%70%55%100%20%95%
FagaceaeQuercuscoccinea45%100%0%0%90%100%25%70%
FagaceaeQuercusmontana75%70%50%40%90%100%50%55%
FagaceaeQuercuspalustris60%100%20%85%85%100%60%90%
FagaceaeQuercusrubra55%100%50%90%95%100%80%95%
GinkgoaceaeGinkgobiloba5%100%5%100%35%100%35%100%
JuglandaceaeCaryacordiformis60%100%0%10%70%100%15%45%
JuglandaceaeCaryaovata40%100%40%10%75%100%50%50%
JuglandaceaeJuglansnigra40%100%40%100%90%100%75%100%
LauraceaeSassafrasalbidum15%100%15%100%40%100%40%100%
MagnoliaceaeLiriodendrontulipifera30%100%30%100%75%100%75%100%
MagnoliaceaeMagnoliasoulangeana0%50%0%13%25%75%10%28%
MagnoliaceaeMagnoliastellata10%25%0%10%30%55%0%25%
MalvaceaeTiliacordata25%100%10%90%65%100%55%100%
MalvaceaeTiliatomentosa10%100%0%10%60%100%5%40%
MoraceaeMaclurapomifera15%55%15%55%35%90%35%90%
NyssaceaeNyssasylvatica5%60%5%60%35%85%35%85%
OleaceaeFraxinusamericana80%90%75%40%85%100%80%80%
OleaceaeFraxinuspennsylvanica45%90%15%30%75%100%25%70%
PinaceaePiceaabies60%90%60%75%90%95%70%75%
PinaceaePiceapungens60%100%0%100%90%100%35%100%
PinaceaePinusrigida85%90%15%10%90%90%75%70%
PinaceaePinusstrobus50%100%45%95%75%100%75%100%
PinaceaePinussylvestris100%90%0%15%100%90%60%60%
PinaceaePseudotsugamenziesii0%60%0%60%20%90%20%90%
PinaceaeTsugacanadensis20%100%20%50%50%100%50%100%
PlatanaceaePlatanusoccidentalis75%100%55%100%85%100%70%100%
PlatanaceaePlatanus× hispanica95%100%38%30%100%100%50%40%
RosaceaePrunusserotina80%90%55%90%90%100%75%100%
RosaceaePyruscalleryana5%100%0%50%25%100%10%95%
SalicaceaeSalixbabylonica55%100%35%90%65%100%55%100%
SapindaceaeAcerplatanoides40%100%35%100%75%100%70%100%
SapindaceaeAcerrubrum35%100%20%100%75%100%50%100%
SapindaceaeAcersaccharinum40%100%35%100%70%100%60%100%
SapindaceaeAcersaccharum35%100%35%55%80%100%50%100%
SapindaceaeAesculushippocastanum15%100%15%100%40%100%40%100%
SimaroubaceaeAilanthusaltissima20%100%20%100%20%100%20%100%
UlmaceaeUlmusamericana10%90%10%75%60%95%60%95%
UlmaceaeZelkovaserrata45%80%45%80%50%95%50%95%
Average44.09%89.64%28.23%65.32%69.09%96.64%52.36%85.77%