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.
Mayhaw is the name given to the fruit of the species of Crataegus series Aestivales that are common in wetlands throughout the southern United States. The principal species are C. aestivalis, the eastern mayhaw, and C. opaca, the western mayhaw.
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 West Asia, but has been introduced in many other parts of the world.
Malus coronaria, also known by the names sweet crabapple or garland crab, is a North American species of Malus (crabapple).
Crataegus populnea is a hawthorn native to the northeastern U.S. and southeastern Canada. The flowers have about 10 stamens with red to purple anthers, and the fruit are orange to red, about 1 cm in diameter, spherical or oblong. Crataegus compta is a variant with pear-shaped fruit.
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 macrosperma, the bigfruit hawthorn is a species of hawthorn native to most of the eastern United States and adjacent Canada, though uncommon at lower altitudes in the south. It is sometimes misidentified as C. flabellata. It is one of the earliest hawthorns to bloom in spring.
Crataegus marshallii is a species of hawthorn known by the common name parsley hawthorn. It is native to the southeastern United States.
Crataegus nigra, the Hungarian thorn, Hungarian hawthorn or black hawthorn, is a black-fruited species of hawthorn native to the western balkan and the Pannonian Basin, spanning from Slovakia to Albania. The fruit, which is up to 10 mm across, can be consumed fresh or cooked.
Crataegus pruinosa is a species of hawthorn known by the common name frosted hawthorn. It is native to a wide area of the eastern United States and southern Canada, and is sometimes considered to be several species, rather than just one.
Crataegus punctata is a species of hawthorn known by the common names dotted hawthorn or white haw that is native to most of the eastern United States and eastern Canada. While some sources claim it is the state flower of Missouri, the actual legislation does not identify an exact species. Furthermore, the Missouri Department of Conservation asserts the Crataegus mollis was specifically designated as the state flower.
Crataegus submollis, known as the northern downy hawthorn, northern red haw, Quebec hawthorn, or hairy cockspurthorn, is a species of hawthorn that grows to about 7 m in height and typically carries large crops of red fruit.
Crataegus wattiana, the Altai hawthorn, is an Asian species of hawthorn. The original description states that it has yellow fruit with five stones (pyrenes). Crataegus wattiana var. wattiana has become naturalized in Seattle, in the U.S. state of Washington.
Crataegus mexicana is a species of hawthorn known by the common names tejocote, manzanita, tejocotera and Mexican hawthorn. It is native to the mountains of Mexico and parts of Guatemala, and has been introduced in the Andes. The fruit of this species is one of the most useful among hawthorns.
Crataegus phippsii is a species of hawthorn native to south-central British Columbia, Washington state, and Montana. It forms a shrub or small tree to 7 m in height with leaves that have white hair on the underside, and fruit that ripen through red to purplish black. It appears to have potential as an ornamental plant.
Crataegus pulcherrima is a species of Hawthorn native to the southeastern United States. This species and those related to it that are classified in Crataegus series Pulcherrimae have been largely ignored since they were originally described in 1903, but warrant consideration as ornamental cultivated plants.
Crataegus opaca, known as the western mayhaw, is a shrub or small tree of the southern United States. It is one of several species of hawthorn with fruits known as "mayhaws".
Crataegus texana, the Texas hawthorn, is a member of the family Rosaceae. Typically, it is found in the form of a small tree or a large shrub and blooms in early spring, usually in the months of March and April. Flowers of the Texas Hawthorn are white and usually produce small, one-inch, scarlet fruits that are said to resemble tiny red apples. Its twigs are usually armed with thorns that can grow to be about one to three inches long.
Crataegus pennsylvanica, known as the Pennsylvania thorn, is a species of hawthorn native to Delaware, New York, North Carolina, Ontario, Ohio, and Pennsylvania, that grows to about 8 m in height. The mature trees have few thorns.
Series Molles is a series within the genus Crataegus that contains at least six species of hawthorn trees and shrubs, native to Eastern North America. Some of the species are cultivated as ornamental plants. They have relatively large leaves, large flowers, and bloom early for hawthorns. The plant parts are usually hairy, particularly in early growth, and the fruit are generally red and are large for hawthorn fruit.
