How to Identify Bignoniaceae

Bignoniaceae is a plant family in the Plantae kingdom, order Lamiales, class Magnoliopsida. The family contains 86 accepted species worldwide. Some species in this family are toxic — exercise caution when handling unknown specimens.

Key Identification Features

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Representative Bignoniaceae Species

How to identify Rhigozum trichotomum Burch.

Rhigozum trichotomum Burch.

Rhigozum trichotomum Burch.

Rhigozum trichotomum is a woody perennial shrub native to southwestern Africa, c…

How to identify Jacaranda brasiliana (Lam.) Pers.

Jacaranda brasiliana (Lam.) Pers.

Jacaranda brasiliana (Lam.) Pers.

Jacaranda brasiliana is a flowering Bignoniaceae species native to multiple regi…

How to identify Tecoma castanifolia (D.Don) Melch.

Tecoma castanifolia (D.Don) Melch.

Tecoma castanifolia (D.Don) Melch.

Tecoma castanifolia is a simple-leaved flowering plant species native to Ecuador…

How to identify Deplanchea tetraphylla (R.Br.) F.Muell. ex Steenis

Deplanchea tetraphylla (R.Br.) F.Muell. ex Steenis

Deplanchea tetraphylla (R.Br.) F.Muell. ex Steenis

Deplanchea tetraphylla is a Bignoniaceae tropical rainforest tree with yellow fl…

How to identify Tabebuia rosea (Bertol.) Bertero ex A.DC.

Tabebuia rosea (Bertol.) Bertero ex A.DC.

Tabebuia rosea (Bertol.) Bertero ex A.DC.

Tabebuia rosea is a flowering neotropical tree widely planted ornamentally and u…

⚠️ Poisonous
How to identify Tabebuia aurea (Silva Manso) Benth. & Hook.fil. ex S.Moore

Tabebuia aurea (Silva Manso) Benth. & Hook.fil. ex S.Moore

Tabebuia aurea (Silva Manso) Benth. & Hook.fil. ex S.Moore

Tabebuia aurea is a deciduous ornamental tree critical for reintroducing extinct…

How to identify Radermachera sinica (Hance) Hemsl.

Radermachera sinica (Hance) Hemsl.

Radermachera sinica (Hance) Hemsl.

Radermachera sinica, the serpent tree, is a large tree commonly grown as a compa…

How to identify Catalpa ovata G.Don

Catalpa ovata G.Don

Catalpa ovata G.Don

Catalpa ovata (yellow or Chinese catalpa) is a small pod-bearing tree native to …

How to identify Incarvillea semiretschenskia (B.Fedtsch.) Grierson

Incarvillea semiretschenskia (B.Fedtsch.) Grierson

Incarvillea semiretschenskia (B.Fedtsch.) Grierson

Incarvillea semiretschenskia is an herbaceous perennial with wavy-winged fruits …

How to identify Catophractes alexandri D.Don

Catophractes alexandri D.Don

Catophractes alexandri D.Don

Catophractes alexandri is the only species in genus Catophractes, a spiny shrub …

How to identify Handroanthus impetiginosum (Mart. ex DC.) Mattos

Handroanthus impetiginosum (Mart. ex DC.) Mattos

Handroanthus impetiginosum (Mart. ex DC.) Mattos

Handroanthus impetiginosum, or pink lapacho, is a large Amazonian tree used orna…

How to identify Delostoma integrifolium D.Don

Delostoma integrifolium D.Don

Delostoma integrifolium D.Don

Delostoma integrifolium is a flowering Bignoniaceae species native to northweste…

Browse all 86 Bignoniaceae species →

Frequently Asked Questions

How do you identify Bignoniaceae?

Bignoniaceae plants belong to the Lamiales order in the Plantae kingdom. Its inflorescences grow as 4–10-inch (100–250 mm) long bunches of creamy white flowers with distinct yellow tinging; individual flowers are around 1 inch (25 mm) wide. For instant identification, use the iNature app — AI-powered and works offline.

What are the key characteristics of Bignoniaceae?

Bignoniaceae is classified in the order Lamiales, class Magnoliopsida, phylum Tracheophyta. Mature old fruits hang downward, and the two hollow halves tap against one another like castanets, producing a distinctive clicking sound in light wind.

⚠️ Are any Bignoniaceae species poisonous?

Yes, some Bignoniaceae species are toxic or poisonous. Always exercise caution with unknown specimens. View poisonous Bignoniaceae species or browse the full poisonous species guide.

Sources: GBIF, iNaturalist, Wikipedia · Disclaimer

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