
South Europe, 1640. This is a very vigorous-growing species, with a wide, spreading head of rather upright-growing branches. The flowers are showy and the fruit large and of a pleasing red colour.
Aronia Thorn. South Europe, 1810. This tree attains to a height of 20 feet, has deeply lobed leaves that are wedge-shaped at the base, and slightly pubescent on the under sides. The flowers, which usually are at their best in June, are white and showy, and succeeded by large yellow fruit. Generally the Aronia Thorn forms a rather upright and branchy specimen of neat proportions, and when studded with its milk-white flowers may be included amongst the most distinct and ornamental of the family.
Scarlet-fruited Thorn. North America, 1683. If only for its lovely white flowers, with bright, pinky anthers, it is well worthy of a place even in a selection of ornamental flowering trees and shrubs. It is, however, rendered doubly valuable in that the cordate-ovate leaves turn of a warm brick colour in the autumn, while the fruit, and which is usually produced abundantly, is of the brightest red.
North America, 1819. This bears some resemblance to the Cockspur Thorn, but has very long, curved spines--longer, perhaps, than those of any other species.
One of the latest flowering species, in which respect it is even more hardy than the well-known Crataegus tanace-tifolia. It forms a small compact tree, of neat and regular outline, with dark green shining leaves, and berries about the same size as those of the common species, and deep red.
Cockspur Thorn. North America, 1691. This has large and showy white flowers that are succeeded by deep red berries. It is readily distinguished by the long, curved spines with which the whole tree is beset. Of this species there are numerous worthy forms, including Crataegus Crus-galli Carrierii, which opens at first white, and then turns a showy flesh colour; Crataegus Crus-galli Layi, Crataegus Crus-galli splendens, Crataegus Crus-galli prunifolia, Crataegus Crus-galli pyracanthifolia, and Crataegus Crus-galli salicifolia, all forms of great beauty--whether for their foliage, or beautiful and usually plentifully-produced flowers.
North America, 1830. This is peculiar in having dark purple or almost black fruit. It is of stout growth, often reaching to 20 feet in height, and belongs to the early-flowering section.
A tree 20 feet high, with stout branches, and downy, spineless shoots. Leaves large, ovate-acute, deeply incised, glossy green above and downy beneath. Flowers large and fragrant, pure white, and produced in close heads in June. Fruit large, oval, downy, and yellow when fully ripe. A native of Sicily, and known under the names of Crataegus incisa and Crataegus Leeana. This species must not be confused with a variety of our common Thorn bearing a similar name.
Common Hawthorn. This is, perhaps, the most ornamental species in cultivation, and certainly the commonest. The common wild species needs no description, the fragrant flowers varying in colour from pure white to pink, being produced in the richest profusion. Under cultivation, however, it has produced some very distinct and desirable forms, far superior to the parent, including amongst others those with double-white, pink, and scarlet flowers.
Paul's double-scarlet Thorn, is one of, if not the handsomest variety, with large double flowers that are of the richest crimson. Other good flowering kinds include Crataegus Oxyacantha praecox (Glastonbury Thorn); Crataegus Oxyacantha Oliveriana; Crataegus Oxyacantha punicea, with deep scarlet flowers; Crataegus Oxyacantha rosea, rose-coloured and abundantly-produced flowers; Crataegus Oxyacantha foliis aureis, with yellow fruit; Crataegus Oxyacantha laciniata, cut leaves; Crataegus Oxyacantha multiplex, double-white flowers; Crataegus Oxyacantha foliis argenteis, having silvery-variegated leaves: Crataegus Oxyacantha pendula, of semi-weeping habit; Crataegus Oxyacantha stricta, with an upright and stiff habit of growth; Crataegus Oxyacantha Leeana, a good form; and Crataegus Oxyacantha leucocarpa.
North America, 1704. This is a miniature Thorn, of slow growth, with leaves about an inch long, and solitary pure-white flowers of large size. The flowers open late in the season, and are succeeded by yellowish-green fruit.
Fiery Thorn. South Europe, 1629. This is a very distinct species, with lanceolate serrated leaves, and pinkish or nearly white flowers. The berries of this species are, however, the principal attraction, being orange-scarlet, and produced in dense clusters. Crataegus Pyracantha crenulata and Crataegus Pyracantha Lelandi are worthy varieties of the above, the latter especially being one of the most ornamental-berried shrubs in cultivation.
Tansy-leaved Thorn. Greece, 1789. This is a very late-flowering species, and remarkable for its Tansy-like foliage. It is of unusually free growth, and in almost any class of soil, and is undoubtedly, in so far at least as neatly divided leaves and wealth of fruit are concerned, one of the most distinct and desirable species of Thorn.
Other good species and varieties that may just be mentioned as being
worthy of cultivation are Crataegus apiifolia, Crataegus Crus-galli horrida, Crataegus
orientalis, and Crataegus tomentosum. To a lesser or
greater extent, the various species and varieties of Thorn are of great
value for the wealth and beauty of flowers they produce, but the above
are, perhaps, the most desirable in that particular respect. They are
all of free growth, and, except in waterlogged soils, thrive well and
flower freely.

• Opposite is a flowering shrub picture.
• Information about the Crataegus flowering shrubs.
• There are many flowering shrubs in the flowering shrub section.
• There are shrub pictures in the flowering shrub pictures gallery.
• The Crataegus is a flowering shrub.
• Flowering shrubs and bushes.