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yellowleaf hawthorn

Scientific Name: Crataegus flava

Family: Rosaceae

Category: Dicot

Growth: Tree, Shrub

Duration: Perennial

Other Names:

       

Yellowleaf Hawthorn (Crataegus flava)

Considerations for Pets

  • The text mentions the presence of thorns in relation to Hawthorns in general.
  • Some hawthorns produce berries.

Considerations for Children

  • The text mentions the presence of thorns in relation to Hawthorns in general.
  • Some hawthorns produce berries.

Common Names

  • Yellowleaf Hawthorn
  • Summer Haw
  • Yellow-leaf Hawthorn

Taxonomy and Nomenclature

  • Scientific Name: Crataegus flava Ait.
  • Family: Rosaceae (Rose family)
  • Plant Symbol: CRFL2

Distribution and Habitat

  • Open woods and low hills.
  • Prefers dry habitats.

Morphological Characteristics and Growth Habits

  • Thicket-forming shrub or small tree.
  • Deciduous tree.
  • Leaves grow spirally arranged on long shoots, and in clusters on spur shoots.
  • Leaf blade is simple (lobed or unlobed).

Ecological Role

  • The tree is susceptible to cedar-hawthorn rust, which causes yellow spots on leaves and deformed fruit.
  • Hawthorn leaf spot can affect this tree, causing leaves to turn yellow and drop.

Interactions with Other Organisms

  • Aphids can attack the leaves, sucking sap and causing them to turn yellow and curl.
  • Cedar-hawthorn rust is caused by the fungus Gymnosporangium globosum.
  • Hawthorn leaf blight is caused by the fungus Diplocarpon mespili (also known as Entomosporium leaf spot).
  • Entomosporium maculatum is a fungus that causes leaf spot.

Resources and Further Information

  • USDA NRCS National Plant Data Center
  • Discover Life: Crataegus flava - Yellowleaf hawthorn