Corylopsis glabrescens Franch. & Sav.

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Credits

Article from Bean's Trees and Shrubs Hardy in the British Isles

Recommended citation
'Corylopsis glabrescens' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/corylopsis/corylopsis-glabrescens/). Accessed 2021-09-26.

Synonyms

  • C. gotoana Mak.

Glossary

awn
Bristle.
entire
With an unbroken margin.
glabrous
Lacking hairs smooth. glabrescent Becoming hairless.
glaucous
Grey-blue often from superficial layer of wax (bloom).
orbicular
Circular.
ovate
Egg-shaped; broadest towards the stem.
synonym
(syn.) (botanical) An alternative or former name for a taxon usually considered to be invalid (often given in brackets). Synonyms arise when a taxon has been described more than once (the prior name usually being the one accepted as correct) or if an article of the International Code of Botanical Nomenclature has been contravened requiring the publishing of a new name. Developments in taxonomic thought may be reflected in an increasing list of synonyms as generic or specific concepts change over time.

References

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Credits

Article from Bean's Trees and Shrubs Hardy in the British Isles

Recommended citation
'Corylopsis glabrescens' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/corylopsis/corylopsis-glabrescens/). Accessed 2021-09-26.

A deciduous shrub up to 15 or 18 ft high, or even a small tree; young shoots brown, quite glabrous and slender. Leaves roundish ovate or obovate, short-pointed, more or less heart-shaped at the base, bristle-toothed; 2 to 4 in. long, 114 to 3 in. wide; slightly glaucous and with a few silky hairs beneath; stalks up to 34 in. long; veins in seven to eleven pairs. Flowers pale yellow, fragrant, borne on drooping racemes 1 to 112 in. long in April; bracts boat-shaped, silky inside; flower-stalk glabrous; petals 13 in. long, obovate; seed-vessel 14 in. wide.

Native of the mountains of Japan; introduced to N. America in 1905 and to Kew in 1916. Rehder describes it as the hardiest in the genus, but most of the Japanese and Chinese species are quite hardy in this country, except that the flowers and young shoots are liable to injury by late spring frosts. It produces its racemes freely enough, but, in comparison with most of the species, these are rather small and not so ornamental. Its distinctive combination of characters are the almost entire absence of down or hairs, the short racemes carrying eight to twelve flowers, and the petals being longer than broad. Although C. gotoana Mak. is given above as a synonym of C. glabrescens and is usually considered as such, it is maintained as a separate species by Ohwi in his Flora of Japan (1965). The distinctions he makes are:

C. glabrescens. – Leaves ovate-orbicular, with prominently awn-tipped teeth. Stamens about half as long as petals. Confined to Kyushu.

C. gotoana. – Leaves obovate to obovate-orbicular, with shortly awned teeth. Stamens nearly as long as petals. Main and southern islands.

If this distinction is made, the cultivated plants would probably be referable to C. gotoana.

From the Supplement (Vol. V)

Morley and Chao do not recognise the distinction sometimes drawn between this species and C. gotoana.