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Catalpa catalpa

Interesting Facts

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Description

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Family Bignoniaceae

Trees , shrubs , or vines , climbers rarely herbs. Leaves opposite, alternate, or whorled , simple or pinnately compound , rarely palmately compound , without stipules, climbers usually with tendrils modified sometimes into hooks or suckers . Inflorescences cymose , paniculate , or racemose, terminal or axillary , rarely flowers borne on old stems; bracts and bractlets present, sometimes deciduous. Flowers bisexual , zygomorphic, usually large. Calyx campanulate or tubular , truncate , 2-5-dentate, or glandular subulate-dentate. Corolla campanulate or funnelform , usually bilabiate; lobes 5, imbricate or valvate . Fertile stamens 4 (didynamous ) and staminode 1, or 2 and staminodes 3, rarely all 5 stamens fertile. Disc fleshy . Ovary superior, 2-locular, rarely 1- or 4-locular; placentation axile or parietal ; ovules numerous . Style filiform ; stigma 2-lobed. Capsule dehiscing loculicidally or septicidally, rarely fruit fleshy and indehiscent. Seeds numerous, usually winged or with tufts of hairs at both ends; endosperm absent.

About 116-120 genera and 650-750 species: mostly in tropical and subtropical regions; 12 genera and 35 species (21 endemic) in China.

Plants of the Bignoniaceae usually produce large flowers, and many species are widely cultivated in China as ornamentals . These include Arrabidaea magnifica Sprague ex Steenis, Campsis radicans (Linnaeus) Seemann, Catalpa speciosa (Warder ex Barney) Engelmann, Clytostoma callistegioides (Chamisso) Bureau & Schumann, Crescentia alata Kunth, C. cujete Linnaeus, Jacaranda cuspidifolia Martius, J. mimosifolia D. Don, Kigelia africana (Lamarck) Bentham, Macfadyena unguis-cati (Linnaeus) A. H. Gentry, Pandorea jasminoides (Linnaeus) Schumann, Parmetiera cerifera Seemann, Podranea ricasoliana (Tanfani) Sprague, Pyrostegia venusta (Ker-Gawler) Miers, Spathodea campanulata Beauvois, Stenolobium stans (Linnaeus) Seemann, Tabebuia chrysantha (Jacquin) G. Nicholson, T. rosea (Bertoloni) de Candolle, and Tecomaria capensis (Thunberg) Spach.[1]

Genus Catalpa

Trees deciduous. Leaves simple , purple glandular punctate at vein axils abaxially. Inflorescences paniculate , corymbose , or racemose, terminal . Calyx bilabiate or irregularly divided , globose in buds. Corolla campanulate , bilabiate, upper lip 2-lobed, lower lip 3-lobed. Fertile stamens 2, included , inserted at base of corolla tube ; staminodes 3. Disc conspicuous . Ovary 2-locular; ovules several. Capsule dehiscing loculicidally, long terete ; valves thin; septum slender, terete. Seeds in several rows , rounded , thin membranous, with hair tufts at both ends.

About 13 species: N America and E Asia; four species in China.[2]

Taxonomy

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Notes

Publishing author : Sudw. Publication : Gard. & Forest ii. (1891) 166

Similar Species

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Members of the genus Catalpa

ZipcodeZoo has pages for 12 species, subspecies, varieties, forms, and cultivars in this genus:

C. bignonioides (Catawba) · C. bignonioides 'Aurea' (Golden Catalpa) · C. bignonioides 'Nana' (Dwarf Southern Catalpa) · C. bungei (Beijing Catalpa) · C. fargesii (Farges Catalpa) · C. longissima (Haitian Catalpa) · C. ovata (Chinese Catalpa) · C. punctata (Cuban Catalpa) · C. speciosa (Catalpa) · C. tibetica (Tibetan Catalpa) · C. × erubescens (Cultivated Catalpa) · C. x erubescens 'Purpurea' (Purple Catalpa)

More Info

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Further Reading

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Notes

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Contributors

Identifiers

Footnotes

  1. Zhi-Yun Zhang & Thawatchai Santisuk "Bignoniaceae". in Flora of China Vol. 18 Page 213. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
  2. Zhi-Yun Zhang & Thawatchai Santisuk "Catalpa". in Flora of China Vol. 18 Page 215. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org. [back]
Last Revised: 2012-07-28