Jepson eFlora: Taxon page
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Catalpa speciosa

Higher Taxonomy
Family: BignoniaceaeView DescriptionDichotomous Key

Habit: Shrub, tree [woody vine]; nectaries often on stem, leaf, calyx, ovary. Leaf: generally 1--3-pinnate or -palmate (or simple), generally opposite or whorled. Flower: bisexual, showy; calyx generally 5-lobed, 2-lipped or not; corolla funnel- or bell-shaped, 5-lobed, generally 2-lipped; stamens epipetalous, generally 4, paired, a 5th vestigial (a staminode) [or 0]; ovary superior, chambers generally 2, placentas 4, axile (or chamber 1, placentas 2--4, parietal), style long, stigma 2-lobed. Fruit: generally capsule, long, cylindric to +- round, sometimes flat, 2-valved. Seed: many, flat, generally winged.
Genera In Family: 81 genera, 827 species: generally tropics, especially South America; many ornamental (Campsis, trumpet creeper; Catalpa; Jacaranda).
eFlora Treatment Author: Lúcia G. Lohmann
Scientific Editor: Thomas J. Rosatti.
Genus: CatalpaView DescriptionDichotomous Key

Habit: Tree, deciduous. Leaf: simple, opposite to whorled, cordate. Inflorescence: panicle, terminal. Flower: calyx inflated, 2-lipped, purple-green; corolla fragrant, lower petal notched; stamens included, anther sacs 2; staminode included, glabrous. Fruit: linear, not flat. Seed: 6--12 mm, oblong; glabrous. Chromosomes: 2n=40.
Species In Genus: 10 species: temperate North America, eastern Asia. Etymology: (Muscogee: kut├║hlpa, winged head, for corolla; corrupted to "Cataba" and "Catawba" based on erroneous attribution to a different tribe of Native Americans; both "Caltalpah" and "Catalpa" used by Catesby, who introduced the plant to England in 1726; Linnaeus published Bignonia catalpa in 1753; Scopoli established the genus Catalpa in 1777)

Catalpa speciosa (Warder) Warder ex Engelm.
Habit: Plant 15--20 m. Fruit: 30 cm, > 1 cm diam.
Ecology: Disturbed places; Elevation: < 1500 m. Bioregional Distribution: n SNF, ScV, PR; Distribution Outside California: Indiana to northern Arkansas. Flowering Time: Jun--Jul
eFlora Treatment Author: Lúcia G. Lohmann
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Citation for this treatment: Lúcia G. Lohmann 2016. Catalpa speciosa, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on October 23, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on October 23, 2016.

Geographic subdivisions for Catalpa speciosa:
n SNF, ScV, PR;
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.