Acer × conspicuum van Gelderen & Oterdoom

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Credits

John Grimshaw, Ross Bayton & Dan Crowley (2020)

Recommended citation
Grimshaw, J., Bayton. R & Crowley, D. (2020), 'Acer × conspicuum' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/acer/acer-x-conspicuum/). Accessed 2020-01-27.

Genus

Other species in genus

Glossary

hybrid
Plant originating from the cross-fertilisation of genetically distinct individuals (e.g. two species or two subspecies).

References

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Credits

John Grimshaw, Ross Bayton & Dan Crowley (2020)

Recommended citation
Grimshaw, J., Bayton. R & Crowley, D. (2020), 'Acer × conspicuum' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/acer/acer-x-conspicuum/). Accessed 2020-01-27.

This taxon is the result of a cross between A. davidii and A. pensylvanicum, although the name seems to be being applied somewhat casually to other crosses as well. Shrub or tree to 10 m, sparsely branched. Bark blue-green or reddish with conspicuous white stripes. Leaves deciduous, 5–20 × 5–15 cm, palmately three-or five-lobed, the lobes long-acuminate, glabrous or sparsely pubescent below, margins serrate; petiole 2–10 cm long, reddish; autumn colour golden- or orange-yellow. Inflorescence terminal, pendulous racemes, 4–15 cm long. Flowers small. Samaras similar to those of A. davidii, usually short. (van Gelderen et al. 1994van Gelderen & van Gelderen 1999). Distribution In cultivation only. USDA Hardiness Zone 5–7 (dependent on cultivar). Illustration NT82.

Distribution 

This artificial hybrid is of great importance to horticulture and selections of it and related hybrids are extremely popular garden trees, although it should be noted that many can reach at least 10 m in height, with a rounded crown. Acer ×conspicuum has occurred on several occasions where the parents grow together, and can be expected to reappear in seedlings of cultivated origin. Several selections, ostensibly grown as A. ×conspicuum are not attributable to this hybrid and are treated here as such, when there is sufficient evidence to do so. The true parentage of many requires further study. Those convincingly A. ×conspicuum are treated below.


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