Crataegus pennsylvanica

Crataegus pennsylvanica
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Rosales
Family: Rosaceae
Genus: Crataegus
Series: Molles
(Beadle ex Sarg.) Rehder[1]
Species: C. pennsylvanica
Binomial name
Crataegus pennsylvanica
Ashe
Synonyms[2]
  • C. tatnalliana Sarg.

Crataegus pennsylvanica, known as the Pennsylvania thorn,[2] is a species of hawthorn native to Delaware, New York, North Carolina, Ontario, Ohio, and Pennsylvania,[2] that grows to about 8 m in height.[2] The mature trees have few thorns.[2]

This species has often been confounded with C. mollis, but the two species have separate native ranges except for an area of overlap in northeastern Ohio.[1]

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References

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  1. 1 2 Phipps, J.B.; O’Kennon, R.J.; Lance, R.W. 2003. Hawthorns and medlars. Royal Horticultural Society, Cambridge, U.K.
  2. 1 2 3 4 5 Phipps, J.B. (2015), "Crataegus pennsylvanica Ashe", in L. Brouillet; K. Gandhi; C.L. Howard; H. Jeude; R.W. Kiger; J.B. Phipps; A.C. Pryor; H.H. Schmidt; J.L. Strother; J.L. Zarucchi, Flora of North America North of Mexico, Volume 9: Magnoliophyta: Picramniaceae to Rosaceae, New York, Oxford: Oxford University Press, pp. 557–557


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