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Crataegus (/ k r ə ˈ t iː ɡ ə s /), [2] commonly called hawthorn, quickthorn, [3] thornapple, [4] May-tree, [5] whitethorn, [5] Mayflower or hawberry, is a genus of several hundred species of shrubs and trees in the family Rosaceae, [6] native to temperate regions of the Northern Hemisphere in Europe, Asia, North Africa and North America.
Many have tried to grow the Glastonbury thorn from seed and direct cuttings, but in the later part of the 20th century all attempts reverted to the normal hawthorn type, flowering only in spring. [15] This tree has been widely propagated by grafting or cuttings, with the cultivar name 'Biflora' or 'Praecox'.
Crataegus monogyna, known as common hawthorn, whitethorn, one-seed hawthorn, or single-seeded hawthorn, is a species of flowering plant in the rose family, Rosaceae. It grows to about 10 metres (33 feet) tall, producing hermaphrodite flowers in late spring. The berry-like pomes (known as haws) contain a stone-encased seed.
Crataegus douglasii is a compact erect bushy shrub growing to 8–9 metres (26–30 feet) tall with a trunk of up to 10 centimetres (4 inches) thick. [4] It is covered in fan-shaped green leaves about 2.5–5 cm (1–2 in) long [4] with teeth along the distal margin. Thorns along the branches are 1–2.5 cm long. [4]
Root cuttings (pieces of root cut off and induced to grow a new trunk) are also not used to propagate fruit trees, although this method is successful with some herbaceous plants. A refinement on rooting is layering. This is rooting a piece of a wood that is still attached to its parent and continues to receive nourishment from it.
How to Grow Roses from Cuttings in 10 Steps. Cut a 6-to 8-inch piece from a stem about the size of a pencil in thickness.Trim at a 45-degree angle. Take a few cuttings so you have a better chance ...
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Crataegus crus-galli is a species of hawthorn known by the common names cockspur hawthorn and cockspur thorn. It is native to North America and is widely used in horticulture . It produces edible fruit.