Crataegus persimilis | |
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In early fall | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Rosids |
Order: | Rosales |
Family: | Rosaceae |
Subtribe: | Malinae |
Genus: | Crataegus |
Species: | C. persimilis |
Binomial name | |
Crataegus persimilis | |
Synonyms | |
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Crataegus persimilis is a species of hawthorn, known by the common names plumleaf hawthorn and broad-leaved cockspur thorn, native to southern Ontario, Canada, and the US states of New York, Pennsylvania, Ohio, Kentucky, West Virginia, and Virginia. It is widely cultivated, particularly in Europe, as an ornamental. Its sporadic distribution in its natural range and certain of its morphological characters leads authorities to consider it a probable naturally occurring hybrid, with its most likely parents being Crataegus succulenta (fleshy hawthorn) and Crataegus crus-galli (cockspur hawthorn). It is a tetraploid. Some populations may be self-perpetuating. Its 'Prunifolia' cultivar has gained the Royal Horticultural Society's Award of Garden Merit, [2] and is considered one of its top 5 trees for smaller gardens. [3]
Consistent with the hypothesis that C. persimilis is a relatively newly arisen hybrid species, there is quite a bit of variation in botanical characters between individuals. The variable traits include the shapes of the leaves, hairs and scales (or the lack thereof) on inflorescences, number of stamens, the color of the anthers, and pitting and other ornamentation (or lack thereof) of the pyrenas. The type specimen, collected along the Genesee River near Rochester, New York, has the narrowest leaves, and the most stamens (10 to 20), of any described specimen. It also has pink anthers, sparsely pubescent corymbs, and deeply pitted pyrenas. The cultivated 'Prunifolia' has a much broader leaves as well as densely pubescent or nearly tomentose corymbs, and only ten pink anthers.[ citation needed ]
C. persimilis are shrubs or trees, 5 to 6 m tall and spreading with a dome-like growth form to about the same width. New twigs and stems are glabrous, with one year old bark a brownish purple, older growth is dull gray. The thorns found on twigs can be straight or recurved. Once the thorns have been on the tree for two years they are a shiny purplish black, and 4 to 7 cm long. Typically older branches and the trunk do not have thorns.[ citation needed ]
Its deciduous leaves are glabrous and coriaceous. The dark green leaf blades are more or less narrowly obovate to broadly elliptic or rhombic-elliptic, 4 to 5 cm long, with serrate margins.[ citation needed ]
The flowers are five-petaled and are white, with cream or pink anthers. The fruits are pomes, and bright scarlet when mature. They flower in May and fruit much later, in September or October. In autumn the leaves take on a striking range of colors from deep yellow to a fiery orange to scarlet and on to purple.[ citation needed ]
The C. persimilis cultivar 'Prunifolia' is used as a street tree, and is often used in gardens as an ornamental, especially for its spectacular autumn display. It is dense enough to use as a hedge or windbreak.[ citation needed ]
C. persimilis is susceptible to fire blight ( Erwinia amylovora ) but has some resistance. It is affected by hawthorn sawfly leaf miners ( Profenusa canadensis ), but they seldom cause serious damage to healthy plants. It may also be afflicted by leaf spot ( Diplocarpon mespili ), caterpillars, gall mites and aphids. [2]
Crataegus, commonly called hawthorn, quickthorn, thornapple, May-tree, whitethorn, Mayflower or hawberry, is a genus of several hundred species of shrubs and trees in the family Rosaceae, native to temperate regions of the Northern Hemisphere in Europe, Asia, North Africa and North America. The name "hawthorn" was originally applied to the species native to northern Europe, especially the common hawthorn C. monogyna, and the unmodified name is often so used in Britain and Ireland. The name is now also applied to the entire genus and to the related Asian genus Rhaphiolepis.
Crataegus monogyna, known as common hawthorn, one-seed hawthorn, or single-seeded hawthorn, is a species of flowering plant in the rose family Rosaceae. It is native to Europe, northwestern Africa, and Western Asia, but has been introduced in many other parts of the world.
Prunus cerasifera is a species of plum known by the common names cherry plum and myrobalan plum. It is native to Southeast Europe and Western Asia, and is naturalised in the British Isles and scattered locations in North America. Also naturalized in parts of SE Australia where it is considered to be a mildly invasive weed of bushland near urban centers. P. cerasifera is believed to one of the parents of the cultivated plum, Prunus domestica perhaps crossing with the sloe, Prunus spinosa, or perhaps the sole parent. This would make it a parent of most of the commercial varieties of plum in the UK and mainland Europe - Victoria, greengages, bullace etc.
Crataegus mollis, known as downy hawthorn or red hawthorn, is a species of plant that occurs in eastern North America from southeastern North Dakota east to Nova Scotia and southwest to eastern Texas. The range of this species is from southern Ontario and Michigan to eastern North Dakota and southward to Denison, Texas, and Arizona. This tree inhabits wooded bottomlands, the prairie border, and the midwest savanna understorey.
Prunus serrulata or Japanese cherry is a species of cherry tree that grows naturally in Japan, China, Korea, and Vietnam, and it also refers to a cultivar produced from Prunus speciosa, a cherry tree endemic in Japan. Historically, the Japanese have developed many cultivars by selective breeding of cherry trees, which are produced by the complicated crossing of several wild species, and they are used for ornamental purposes all over the world. Of these, the cultivars produced by complex interspecific hybrids based on the Oshima cherry are also known as the Cerasus Sato-zakura Group.
Crataegus heterophylla, known as the various-leaved hawthorn, is of uncertain origin. Its original native range is not known, possibly it was the Caucasus of Western Asia. Suggestions that it originated in Southeast Europe may be based on misidentification.
Crataegus laevigata, known as the Midland hawthorn, English hawthorn, woodland hawthorn, or mayflower, is a species of hawthorn native to western and central Europe, from Great Britain and Spain east to the Czech Republic and Hungary. It is also present in North Africa. The species name is sometimes spelt C. levigata, but the original orthography is C. lævigata.
Kleinhovia is a monotypic genus of plants in the cotton, hibiscus and cacao family Malvaceae. The sole species in the genus is Kleinhovia hospita, commonly known as guest tree, an evergreen tree native to Indonesia, Malaysia and other parts of tropical Asia and the Pacific.
Rhaphiolepis indica, the Indian hawthorn, India hawthorn or Hong Kong hawthorn is an evergreen shrub in the family Rosaceae.
Crataegus crus-galli is a species of hawthorn known by the common names cockspur hawthorn and cockspur thorn. It is native to eastern North America from Ontario to Texas to Florida, and it is widely used in horticulture. It is thought to be the parent, along with Crataegus succulenta, of the tetraploid species Crataegus persimilis.
Crataegus rhipidophylla is a species of hawthorn which occurs naturally from southern Scandinavia and the Baltic region to France, the Balkan Peninsula, Turkey, Caucasia, and Ukraine. It is poorly known as a landscape and garden plant, but seems to have potential for those uses.
Deutzia gracilis, the slender deutzia or Japanese snow flower, is a species of flowering plant in the hydrangea family Hydrangeaceae, native to Japan.
Dasyphyllum excelsum is a species of flowering plant in the family Asteraceae. This species is endemic to Chile, occurring from Quillota to Cauquenes between 190 and 800 m above sea level, a specific location of occurrence being in central Chile within the Cerro La Campana forests in association with the endangered Chilean wine palm, Jubaea chilensis.
Crataegus berberifolia, the barberry hawthorn, is a species of hawthorn from the southeastern United States. There are two varieties: C. berberifolia var. berberifolia has 20 stamens with cream-coloured anthers, and C. berberifolia var. engelmanii has 10 stamens with purplish pink anthers.
Litsea glaucescens, also called Mexican bay leaf, is an evergreen tree or shrub 3–6 metres (9.8–19.7 ft) high in the genus Litsea belonging to family Lauraceae. It is native from southern North America, mostly in Mexico. Distributed by Mexico and Central America.
Cadaba aphylla ("Swartstorm") is one of the many species in the genus Cadaba. It is indigenous to southern Africa.
Cinnamomum kanehirae, also known as small-flowered camphor tree, or stout camphor tree, is a tree within the genus Cinnamomum of the family Lauraceae endemic to Taiwan.
Salix balfouriana is a shrub or small tree from the genus of willow (Salix) with reddish black and tomentose hairy young twigs and up to 8 leaf blades, rarely 18 centimeters long. The natural range of the species is in China.
Andesanthus is a genus of flowering plant in the family Melastomataceae, native to Colombia, Costa Rica, Ecuador, Panama, Peru and Venezuela. The genus was established in 2019 for some species formerly placed in Tibouchina. Some species are cultivated as ornamental shrubs or trees.