Nyssa Gronov. ex L. (Cornaceae)

bolehabitemergent trees or large trees 30+ m
bolebuttressesabsent or present
bolebuttress_sizeshort
bolespinesabsent
bolebark_outer_colorgray
bolebark_peelingnot peeling
boleslash_coloryellow or brown
boleslash_laminationpresent
boleslash_odorabsent
boleexudateabsent
twigterminal_buds_enclosed_by_leavesno
twigclumped_hairsabsent
twigcomplex_hairsabsent
twigstinging_hairsabsent
twigmature_twig_indumentumabsent or present
twigtwig_indumentum_densitysparse
twigtwig_cross_sectionterete
twigleaf_locationclustered at twig end
twigleaf_insertionalternate
twigleaf_planespiral
stipulestipulesabsent
leafleaf_scalelike_or_needlelikenone
leafleaf_complexitysimple
leafpetiole_lengthless than a quarter
leafpetiole_wingednot winged
leafpetiole_attachmentbase of leaf
leafpetiole_base_swellingnot swollen
leafpetiole_apex_swellingnot swollen
leafpetiole_cross_sectionflattened
leafpetiole_wrinklingsmooth
leafleaf_similarityhomophyllus
leafleaf_texturecoriaceous
leafleaf_basesymmetrical
leafleaf_dissectionnot dissected
leafleaf_marginsentire
leafmargin_planeflat
leafleaf_base_shapetapered
leafleaf_apex_shaperounded or acute or acuminate
leafupper_leaf_surfacematte
leaflower_leaf_surfaceglaucous
leafprimary_venationpinnate
leafprimary_vein_aboveroundly raised or flat or sunken
leafsecondary_vein_spacingopen
leafsecondaries_aboveraised
leafsecondary_vein_coursemostly parallel
leafsecondary_vein_anglemedium
leafsecondary_vein_terminationbrochidodromous or eucamptodromous
leafsecondary_vein_branchingnot branched
leafintersecondary_veinsabsent or all less than half
leaftertiary_veins_aboveraised
leaftertiary_vein_formdistinctly percurrent or weakly percurrent
leafdirection_of_percurrenceperpendicular to midrib or parallel to midrib
leaframified_branchingabsent
leafdomatiaabsent or present
leafdomatia_typehair tufts
leafdomatia_distributionalong midrib
leafleaf_glandsabsent
leafmarginal_and_petiolar_glandsabsent
leafhairs_on_mature_leafpresent
leafhair_densitysparse
inflorinflorescencemultiple
inflorinflorescence_positionaxillary
inflorinflorescence_axisunbranched
inflorspecialized_inflorescence_unitspresent
inflortype_of_inflorescence_unitheads
flowernumerous_persistant_floral_bractsabsent
flowerfloral_sexualitybisexual or at least some unisexual
flowerfloral_oecymonoecious
flowerpeduncleabsent
flowerflower_sizeto about 0.5 cm
flowerfloral_symmetryactinomorphic
flowerfloral_columnabsent
flowerhypanthiumabsent
flowerdiskpresent
flowerdisk_positionstamens outside (intrastaminal)
flowerperianthpresent
flowerperianth_typeK+C
flowersepal_number(4-)5
flowersepal_freedompartially joined
flowersepal_persistencepersistent in fruit
flowersepal_accrescencenot accrescent
flowerepicalyxabsent
flowerpetal_presencepresent
flowerpetal_number(4-)5-8
flowerpetal_fusionfree at base
flowerpetal_texturenot fleshy
flowerpetal_persistencedeciduous
flowerpetal_stalkssessile
flowerpetal_marginentire
malestamen_number8-10
malestamen_filamentspresent
malestamen_fasciclingall free
malestamen_adnationfree
malestamen_sizeequal sizes
malestamen_merydiplostemonous
maleanther_locule_number2
maleanther_fixationdorsifixed
maleanther_adornmentnot awned
maleanther_dehiscencelong slits
femaleovary_positionsuperior
femalecarpel_arrangementsyncarpous
femalecarpel_number2
femalelocule_number1
femalestyle_presencesolitary including joined
femalestigma_lobes1
femalestigma_shapenot distinctive
fruitcommon_fruit_typeberry or drupe
fruitfruit_fleshinessfleshy
fruitfruit_aggregationnot multiple or aggregate
fruitfruit_dehiscenceindehiscent
fruitfruit_accessory_tissueno fleshy perianth parts
fruitfruit_wingsabsent
seedseed_number_and_multiple1
seedseed_sizeless than 5 mm
seedseed_wingsabsent
seedseed_ruminationsseed uniform
seedseed_arilabsent
seedseed_endospermpresent
infofield_characterstrunk and twig bark with prominent lenticels; leaves bunched at twig ends; flowers in stalked heads; male and hermaphrodite; style spliiting into two stigmatic branches; leaf midrib flushed red