Crataegus pentagyna Willd.

TSO logo

Sponsor this page

For information about how you could sponsor this page, see How You Can Help

Credits

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

Recommended citation
'Crataegus pentagyna' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/crataegus/crataegus-pentagyna/). Accessed 2020-07-07.

Genus

Glossary

calyx
(pl. calyces) Outer whorl of the perianth. Composed of several sepals.
glabrous
Lacking hairs smooth. glabrescent Becoming hairless.
hybrid
Plant originating from the cross-fertilisation of genetically distinct individuals (e.g. two species or two subspecies).
included
(botanical) Contained within another part or organ.
inflorescence
Flower-bearing part of a plant; arrangement of flowers on the floral axis.
lax
Loose or open.
ovate
Egg-shaped; broadest towards the stem.

References

There are currently no active references in this article.

Credits

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

Recommended citation
'Crataegus pentagyna' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/crataegus/crataegus-pentagyna/). Accessed 2020-07-07.

A small tree 15 to 20 ft high, with hairy young shoots; thorns few, 13 in. long. Leaves broadly tapered or nearly straight at the base, lobed; 1 to 3 in. long, nearly or quite as wide. On the barren shoots they are broadly ovate, the basal pair of lobes often deep; on the flowering shoots the leaves are narrower, diamond-shaped or obovate, with a more tapered base; all dark green and somewhat hairy above, paler and more hairy below, ultimately almost glabrous; stalk 12 to 1 in. long, stipules large, deeply toothed. Flowers white, 58 in. diameter, produced during May and June in rather lax corymbs 2 to 3 in. across. Calyx and flower-stalks clothed with grey down; stamens twenty, anthers red; styles four or five. Fruit black-purple, oval, 12 in. long.

Native of E. Europe. The group of thorns to which this belongs is somewhat doubtful in its inter-relationships. C. melanocarpa Bieb., and C. oliveriana Bosc, are included under it by Lange and others. (See note under C. oliveriana.) From C. nigra it differs in its less downy shoots and leaves, and in its oval fruits.

C. hiemalis Lange is supposed to be a hybrid between the above and C. crus-galli, and the way seedlings of C. hiemalis have reverted to a pure glabrousness like that of crus-galli, especially in the inflorescence, supports this theory.


Feedback

A site produced by the International Dendrology Society.

For copyright and licence information, see the Licence page.

To contact the editors: info@treesandshrubsonline.org.