Other Fact Sheets Twig Key

So far you have made the following choices...

It could be one of the species in the table below. Let's narrow our choices by looking for thorns or spines.
numerous small spines
woody, single or branched thorns
paired spines


Possible matches:
Acacia berlandieri - guajillo
Acacia constricta - whitethorn acacia
Acacia farnesiana - sweet acacia
Acacia greggii - catclaw acacia
Aralia spinosa - Devil's walking stick
Atriplex confertifolia - shadscale
Berberis canadensis - American barberry
Berberis thunbergii - Japanese barberry
Bougainvillea spp. - bougainvillea
Caesalpinia pulcherrima - pride-of-Barbados
Calliandra californica - Baja fairy duster
Calliandra eriophylla - fairy duster
Castela emoryi - crucifixion thorn
Ceanothus cordulatus - whitethorn ceanothus
Ceanothus spinosus - greenbark ceanothus
Celtis ehrenbergiana - spiny hackberry
Chaenomeles speciosa - common floweringquince
Citrus spp. - citrus
Condalia globosa - bitter condalia
Crataegus douglasii - black hawthorn
Crataegus monogyna - oneseed hawthorn
Crataegus spp. - hawthorn
Ebenopsis ebano - Texas ebony
Elaeagnus angustifolia - Russian-olive
Elaeagnus pungens - thorny-olive
Elaeagnus umbellata - autumn-olive
Erythrina corallodendron - coral tree
Euphorbia misera - cliff spurge
Faidherbia albida - winter thorn
Fouquieria columnaris - boojum tree
Fouquieria splendens - ocotillo
Gleditsia aquatica - waterlocust
Gleditsia triacanthos - honeylocust
Ilex vomitoria - yaupon
Koeberlinia spinosa - allthorn
Krameria grayi - white ratany
Leucaena retusa - littleleaf leadtree
Lycium andersonii - Anderson boxthorn
Lycium brevipes - Baja desert-thorn
Lysiloma candidum - palo blanco
Maclura pomifera - osage-orange
Mimosa aculeaticarpa - catclaw mimosa
Olneya tesota - desert ironwood
Oplopanax horridus - Devilsclub
Osteomeles anthyllidifolia - Hawaii hawthorne
Parkinsonia aculeata - Jerusalem thorn
Parkinsonia florida - blue paloverde
Parkinsonia microphylla - yellow paloverde
Poncirus trifoliata - trifoliate orange
Prosopis glandulosa - honey mesquite
Prosopis pubescens - screwbean mesquite
Prosopis velutina - velvet mesquite
Prunus americana - American plum
Prunus angustifolia - Chickasaw plum
Prunus fremontii - desert apricot
Prunus mexicana - Mexican plum
Prunus subcordata - Klamath plum
Psorothamnus fremontii - Fremont's dalea
Psorothamnus schottii - Schott indigobush
Psorothamnus spinosus - desert smoke tree
Pyracantha coccinea - scarlet firethorn
Pyrus calleryana - Callery pear
Pyrus communis - common pear
Rhamnus cathartica - common buckthorn
Ribes lacustre - prickly currant
Ribes montigenum - mountain gooseberry
Ribes roezlii - Sierra gooseberry
Robinia hispida - bristly locust
Robinia neomexicana - New Mexican locust
Robinia pseudoacacia - black locust
Rosa canina - dog rose
Rosa gymnocarpa - little wood rose
Rosa minutifolia - small-leaved rose
Rosa multiflora - multiflora rose
Rosa nutkana - Nootka rose
Rosa pisocarpa - cluster rose
Rosa rugosa - rugosa rose
Rosa woodsii - Woods' rose
Rubus allegheniensis - Alleghany blackberry
Rubus argutus - prickly Florida blackberry
Rubus armeniacus - Himalaya blackberry
Rubus idaeus - raspberry
Rubus laciniatus - evergreen blackberry
Rubus occidentalis - black raspberry
Rubus odoratus - purple flowering raspberry
Rubus parviflorus - thimbleberry
Rubus phoenicolasius - wine raspberry
Rubus spectabilis - salmonberry
Rubus ursinus - wild blackberry
Sideroxylon lycioides - buckthorn bumelia
Ulex europaeus - common gorse
Zanthoxylum clava-herculis - pricklyash
Ziziphus obtusifolia - lotebush

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