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Quercus lusitanica

Gall oak
1897 illustration from Franz Eugen Köhler, Köhler's Medizinal-Pflanzen
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fagales
Family: Fagaceae
Genus: Quercus
Subgenus: Quercus subg. Quercus
Section: Quercus sect. Quercus
Species:
Q. lusitanica
Binomial name
Quercus lusitanica
Synonyms[2]
List
  • Quercus fruticosa Brot.
  • Quercus humilis Lam., illegitimate homonym
  • Quercus valentina Cav.
  • Quercus ovalifolia Bosc ex Pers.
  • Quercus glauca Bosc ex Loisel.
  • Quercus australis Link
  • Quercus undulata K.Koch
  • Quercus prasina Bosc ex Endl.
  • Quercus aegilopifolia Boiss. ex Endl.
  • Quercus muricata Palau ex Willk. & Lange
  • Quercus quexigo Cook ex Willk. & Lange
  • Quercus aegylopifolia Boiss. ex A.DC.
  • Quercus brachycarpa Kotschy ex A.DC.
  • Quercus brachycarpa Guss. ex Parl.
  • Quercus rigida K.Koch ex A.DC.
  • Quercus baetica H.Buek
  • Quercus zang Dippel

Quercus lusitanica, commonly known as gall oak, Lusitanian oak, or dyer's oak, is a species of oak native to Portugal, Spain (Galicia and western Andalucia) and Morocco.[3] Quercus lusitanica is the source of commercial nutgalls. These galls are produced by the infection from the insect Cynips gallae tinctoriae. They are used for dyeing.

Several other species are known colloquially as "gall oaks;" indeed, galls can be found on a large percentage of oak species.[4] The specific epithet "lusitanica" refers to the ancient Roman Province of Lusitania, corresponding roughly to present-day Portugal and Extremadura in Spain.[5]

  1. ^ Jerome, D.; Vazquez, F. (2018). "Quercus lusitanica". IUCN Red List of Threatened Species. 2018: e.T79914375A103229340. doi:10.2305/IUCN.UK.2018-2.RLTS.T79914375A103229340.en. Retrieved 19 November 2021.
  2. ^ "Quercus lusitanica Lam.". World Checklist of Selected Plant Families. Royal Botanic Gardens, Kew – via The Plant List. Note that this website has been superseded by World Flora Online
  3. ^ "Quercus lusitanica". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
  4. ^ Cranshaw, Whitney (2004). Garden Insects of North America. Princeton, New Jersey: Princeton University Press. ISBN 0-691-09560-4.
  5. ^ Garcia, José Manuel (1989). História de Portugal: Uma Visão Global. Lisboa: Editorial Presença. pp. 32, 33, 38. ISBN 9722309897.

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