Catalpa × erubescens

Catalpa × erubescens (or Catalpa erubescens), the hybrid catalpa, is a hybrid plant species of Catalpa in the family Bignoniaceae. It is a medium-sized tree, reaching at most 20 m. Its parents are southern catalpa, Catalpa bignonioides, from the United States, and yellow catalpa, C. ovata, from China. There is one accepted[2] form, Catalpa × erubescens Carrière f. purpurea (Wawra & Abel) Paclt, which has purple, some say chocolate-colored, young leaves which turn green as they mature.[3] This form is marketed under a variety of names, such as hybrid catalpa 'Purpurea', red-leaved Indian bean tree, and purple hybrid catalpa, and has gained the Royal Horticultural Society's Award of Garden Merit.[4]

Catalpa × erubescens
Flowers at the Cambridge University Botanic Garden
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Bignoniaceae
Genus: Catalpa
Species:
C. × erubescens
Binomial name
Catalpa × erubescens

References
  1. Rev. Hort. (Paris) 41:460. 1869
  2. Olsen, Richard T; Kirkbride, Joseph H (2017). "Taxonomic revision of the genus Catalpa (Bignoniaceae)". Brittonia. 69 (3): 387–421. doi:10.1007/s12228-017-9471-7. S2CID 45922216.
  3. Dirr, Michael A. (2011). Dirr's Encyclopedia of Trees and Shrubs. Timber Press. pp. 158–159. ISBN 9780881929010.
  4. "Catalpa × erubescens 'Purpurea' purple hybrid catalpa". Retrieved 29 December 2019.
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