Crataegus flabellata

Fanleaf hawthorn
C. flabellata var. grayana
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Rosales
Family: Rosaceae
Genus: Crataegus
Series: Tenuifoliae
(Beadle ex Sarg.) Rehder[1]
Species: C. flabellata
Binomial name
Crataegus flabellata
(Bosc ex Spach) Rydb.
Synonyms[2]

Crataegus flabellata is a species of hawthorn known by the common name fanleaf hawthorn. It is native to the northeastern United States and adjacent Canada. It is intermediate in appearance between C. macrosperma and C. chrysocarpa.[3] C. macrosperma, which occurs throughout the range of C. flabellata and also in the southeastern U.S., is often misidentified as C. flabellata.[3]

Varieties

Crataegus crudelis Sarg. is a form of C. flabellata from Quebec that has very long thorns (up to 10 cm).[2] The two varieties C. flabellata var. grayana (Eggl.) E.J. Palmer and C. flabellata, var. flabellata differ in that the first has 20 stamens per flower, and the latter has 10 stamens, but in other features the two varieties are variable and the features overlap.[2]

  1. ↑ Phipps, J.B.; Robertson, K.R.; Smith, P.G.; Rohrer, J.R. (1990). A checklist of the subfamily Maloideae (Rosaceae). Canadian Journal of Botany. 68(10): 2209–2269.
  2. 1 2 3 Phipps, J.B. (2015), "Crataegus flabellata (Boxc ex Spach) K. Koch", 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. 567–567
  3. 1 2 Phipps, J.B., O’Kennon, R.J., Lance, R.W. (2003). Hawthorns and medlars. Royal Horticultural Society, Cambridge, U.K.
Wikimedia Commons has media related to Crataegus flabellata.


This article is issued from Wikipedia - version of the 9/3/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.