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oneseed hawthorn

Scientific Name: Crataegus monogyna

Family: Rosaceae

Category: Dicot

Growth: Tree, Shrub

Duration: Perennial

Other Names:

       

Common Hawthorn (Crataegus monogyna)

Crataegus monogyna, commonly known as common hawthorn or oneseed hawthorn, is a familiar sight in many regions. It's a versatile plant known by several other names as well.

Considerations for Pets

  • The text indicates that the common hawthorn can form an almost impenetrable hedge, suggesting dense growth that might pose a physical barrier to smaller pets.
  • The text mentions that the hawthorn has spines.

Considerations for Children

  • The text indicates that the common hawthorn can form an almost impenetrable hedge, suggesting dense growth.
  • The text mentions that the hawthorn has spines.

Nomenclature and Taxonomy

  • Scientific Name: Crataegus monogyna Jacq.
  • Common Names: Common hawthorn, oneseed hawthorn, English hawthorn, May Blossom, May Tree. Also referred to as single-seed hawthorn or singleseed hawthorn.
  • Family: Rosaceae (Rose family)
  • Synonyms: The text refers to the plant as one-seed hawthorn.
  • Taxonomic Rank: The text mentions a variety: Crataegus monogyna var. monogyna Jacq.

Distribution and Habitat

  • Native to Europe, northwest Africa, and western Asia.
  • Found in woods, hedges, and thickets.
  • Considered invasive in the United States, particularly in the Northeast and Pacific Northwest.

Ecological Role

  • Can be invasive, especially in North America.
  • Known to hybridize with other ornamental hawthorn species.

Morphological Characteristics and Growth Habits

  • A deciduous shrub or small tree, typically reaching 8-10 meters in height.
  • Can be trimmed to form a hedge, creating a dense screen.
  • The bark is mentioned, and images are available showing the leaf, flower, fruit, seed, and petiole.
  • Typically has flowers with one stem, though sometimes two.

Genetic Information

  • Studies have examined small-scale genetic diversity within and among oneseed hawthorn populations.
  • RAPD (random amplified polymorphic DNA) variation has been studied in populations from northern Italy.

Interactions with Other Organisms

  • Eurasian blackbirds (Turdus merula) feed on the berries.

Traditional Uses

  • The berries can be made into a no-cook jelly.
  • In Europe, both the leaves and flowers, as well as the fruits of Crataegus monogyna and C. laevigata are used.

Quirky Facts

  • One-seeded hawthorns generally have only one seed in the fruit, unlike other hawthorn species which can have up to 5 seeds.
  • There is a champion Oneseed Hawthorn in Connecticut recognized by American Forests as the largest known tree of its kind since 1991.

Further Information

  • Dave's Garden offers tips and ideas for gardens, along with seeds and plants.
  • PFAF (Plants for a Future) provides information.
  • Leafsnap is an electronic field guide with images.
  • USDA PLANTS database provides information.