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.[2] They have relatively large leaves, large flowers, and bloom early for hawthorns.[2] The plant parts are usually hairy, particularly in early growth, and the fruit are generally red (sometimes yellow) and are large for hawthorn fruit (up to 2.5 cm diameter in some species).[2]

Crataegus ser. Molles
Crataegus pennsylvanica fruit
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Rosales
Family: Rosaceae
Genus: Crataegus
Section: Crataegus sect. Coccineae
Series: Crataegus ser. Molles
(Beadle ex Sarg.) Rehder[1]

Species edit

The principal species in the series are:[2]

The following rare local species appear to be hybrid derivatives of series Molles:[2]

References edit

  1. ^ Phipps, J.B.; O’Kennon, R.J.; Lance, R.W. 2003. Hawthorns and medlars. Royal Horticultural Society, Cambridge, U.K.
  2. ^ a b c d e Phipps, J.B. (2015), "Crataegus Linnaeus (sect. Coccineae) ser Molles (Sargent) Rehder, Man. Cult. Trees ed. 2 361. 1940", 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 (eds.), Flora of North America North of Mexico, vol. 9: Magnoliophyta: Picramniaceae to Rosaceae, New York, Oxford: Oxford University Press, pp. 551–557