Azarole

Crataegus azarolus · Accepted scientific name

Scientific literature: Very Sparse (35 studies) · ★☆☆☆☆

Azarole, scientifically known as Crataegus azarolus, is a resilient deciduous shrub native to the Mediterranean region. Renowned for its small, edible fruits and striking blossoms, this plant holds significant ethnobotanical value. It is traditionally utilized in folk medicine for its potential antioxidant, anti-inflammatory, and cardioprotective properties across various cultures.

Family
Rosaceae
Native range
Europe
Parts used
Fruit · Flower
Common names
Azarole · Crete Hawthorn · 7 more
Scientific synonyms
Crataegus Oxyacantha Var. Azarolus · Pyrus Azarolus · 2 more

Names and Synonyms

Common Names

Scientific Names

Accepted name

Crataegus azarolus

Synonyms

Regional and Traditional Names

Spanish:

  • Acerolo
  • Mespilus azarolus
  • Mespilus aronia
  • Azarolus crataegoides
  • Azarolus crataegoides var. dulcis
  • Azarolus crataegoides var. florifera
  • Azarolus crataegoides var. intermedia
  • Azarolus crataegoides var. macrocarpa
  • Azarolus crataegoides var. malus
  • Azarolus crataegoides var. pyriformis
  • Azarolus crataegoides var. torulosa
  • Crataegus oxyacantha var. azarolus
  • Crataegus aronia
  • Crataegus orientalis var. aronia
  • Crataegus azarolus subsp. aronia
  • Crataegus chrysoclada
  • Crataegus azarolus var. chrysolepis
  • Crataegus azarolus var. hastata
  • Crateagus azarolus var. aronia
  • Crateagus aronia var. dentata
  • Crateagus ×ruscinonensis var. aronioides
  • Lazarolus oxyacanthoides
  • Pyrus azarolus
  • Azarolus crataegoides var dulcis
  • Azarolus crataegoides var florifera
  • Azarolus crataegoides var intermedia
  • Azarolus crataegoides var macrocarpa
  • Azarolus crataegoides var malus
  • Azarolus crataegoides var pyriformis
  • Azarolus crataegoides var torulosa
  • Crataegus azarolus subsp aronia
  • Crataegus azarolus var chrysolepis
  • Crataegus azarolus var hastata
  • Crataegus orientalis var aronia
  • Crataegus oxyacantha var azarolus
  • Crateagus aronia var dentata
  • Crateagus azarolus var aronia
  • Crateagus xruscinonensis var aronioides
  • Crateagus xruscinonensis var. aronioides
  • acerolo

German:

  • Azaroldorn
  • Welsche Mispel
  • Napolitanische Mispel

French:

  • Azarolier
  • Azerolier
  • Azerole
  • Azérolier
  • Azerolier
  • Épine d'Espagne

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta and the class Equisetopsida. Within the subclass Magnoliidae, it falls under the order Rosales and the family Rosaceae. Finally, it is categorized under the genus Crataegus as the species Crataegus azarolus.

Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Rosales
Family Rosaceae
Genus Crataegus

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a specific range across several Mediterranean regions. In Southwestern Europe, its presence is documented in the Balearic Islands, France, Sardinia, and Spain. Moving eastward, its distribution extends into Southeastern Europe. Specifically, it can be found growing within the borders of Greece. Together, these locations define its primary geographical footprint.

Region Area
Southwestern Europe Baleares
Southwestern Europe France
Southwestern Europe Sardegna
Southwestern Europe Spain
Southeastern Europe Greece
Southeastern Europe Italy
Southeastern Europe Kriti
Southeastern Europe Sicilia
Southeastern Europe Türkiye-in-Europe
Southeastern Europe NW. Balkan Pen.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Crataegus azarolus is characterized by its classification as a perennial, meaning it persists through multiple growing seasons and maintains its biological functions over a long lifespan. As a phanerophyte, its regenerative buds are located high above the ground on woody stems, allowing the plant to maintain a robust structural presence in its environment. This combination of a long-lived lifecycle and a high-growing life form enables the species to establish stable, woody architectures that can withstand seasonal changes and support reproductive maturity over many years.

Life form :
phanerophyte
Lifecycle :
perennial

Morphology

The morphology of Crataegus azarolus is characterized by its terrestrial habitat, where it grows as a perennial plant rather than an aquatic or semiaquatic species. Its growth form is versatile, typically manifesting as a woody shrub or a small tree, depending on environmental conditions and pruning. As an independent organism, it does not exhibit any parasitic tendencies, functioning autonomously within its ecosystem. The plant is distinctly woody in its structural composition, possessing rigid, lignified stems and branches that support its dense, spreading canopy.

Aquatic :
terrestrial
Growth form :
tree
Growth form :
shrub
Parasite :
independent
Woodiness :
woody

Physiology

The physiology of Crataegus azarolus is characterized by a metabolic framework utilizing a C3 photosynthetic pathway, which involves the direct fixation of atmospheric carbon dioxide via the enzyme Rubisco within the mesophyll cells. This carbon fixation process typically occurs during daylight hours, leading to the production of three-carbon molecules as the primary initial product of the Calvin cycle. As a woody perennial, its physiological processes are closely tied to seasonal phenology, where transpiration rates and stomatal conductance are regulated to balance gas exchange with water conservation, particularly in its native Mediterranean-type habitats. The plant exhibits robust secondary metabolism, synthesizing various bioactive compounds such as flavonoids and phenolic acids, which are integrated into its physiological defense mechanisms against oxidative stress and herbivory. Furthermore, its nutrient uptake and vascular transport systems are adapted to maintain turgor pressure and facilitate the long-distance movement of photosynthates from the leaves to the woody tissues and developing fruits.

Photosynthetic pathway :
C3

Reproduction

The reproduction of Crataegus azarolus is centered on the production of seeds contained within its fleshy fruits, which exhibit significant variability in physical dimensions. The seed mass of this species is characterized by a mean value of approximately 0.193569375 g, indicating a relatively consistent baseline for embryo development. However, there is a notable range in individual seed weights, with the minimum recorded mass being 0.10628 g and the maximum reaching up to 0.5074 g. This distribution of seed mass suggests a diverse reproductive strategy where seed size can fluctuate significantly within the population, potentially influencing germination success and early seedling vigor.

Seed mass max:
0.5074 g
Seed mass mean:
0.193569375 g
Seed mass min:
0.10628 g

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Crataegus azarolus has 4 reported plant parts identified across 5 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include fruit, flower, leaf, stem.

Plant parts reported in Crataegus azarolus
Plant part Supporting sources Consensus
Fruit 2 supporting sources ★☆☆☆☆
Flower 1 supporting sources ★☆☆☆☆
Leaf 1 supporting sources ★☆☆☆☆
Stem 1 supporting sources ★☆☆☆☆

Fruit

  1. Journal of complementary & integrative medicine
  2. Pakistan journal of biological sciences : PJBS

Flower

  1. Journal of complementary & integrative medicine

Leaf

  1. Journal of complementary & integrative medicine

Stem

  1. Pakistan journal of biological sciences : PJBS

Chemicals

Crataegus azarolus has 12 reported phytochemicals identified across 5 scientific publications and several other databases. The most consistently reported chemicals include quercetin, (-)-Epicatechin, CHLOROGENIC ACID, Fatty acids, Flavonoids.

Chemicals reported in Crataegus azarolus
Chemical Supporting sources Consensus
quercetin 2 supporting sources ★☆☆☆☆
(-)-Epicatechin 1 supporting sources ★☆☆☆☆
CHLOROGENIC ACID 1 supporting sources ★☆☆☆☆
Fatty acids 1 supporting sources ★☆☆☆☆
Flavonoids 1 supporting sources ★☆☆☆☆
Hyperoside 1 supporting sources ★☆☆☆☆
Isoquercitrin 1 supporting sources ★☆☆☆☆
Lucenin-2 1 supporting sources ★☆☆☆☆
RUTIN 1 supporting sources ★☆☆☆☆
Spiraeoside 1 supporting sources ★☆☆☆☆

quercetin

  1. Journal of complementary & integrative medicine
  2. Pakistan journal of biological sciences : PJBS

(-)-Epicatechin

  1. Pakistan journal of biological sciences : PJBS

CHLOROGENIC ACID

  1. Pakistan journal of biological sciences : PJBS

Fatty acids

  1. Journal of complementary & integrative medicine

Flavonoids

  1. Journal of complementary & integrative medicine

Hyperoside

  1. Pakistan journal of biological sciences : PJBS

Isoquercitrin

  1. Pakistan journal of biological sciences : PJBS

Lucenin-2

  1. Journal of complementary & integrative medicine

RUTIN

  1. Pakistan journal of biological sciences : PJBS

Spiraeoside

  1. Pakistan journal of biological sciences : PJBS

Activities

Crataegus azarolus has 2 reported activities identified across 5 scientific publications and several other databases. The most consistently reported activities include Antioxidant, Anxiolytic.

Activities reported in Crataegus azarolus
Activity Supporting sources Consensus
Antioxidant 1 supporting sources ★☆☆☆☆
Anxiolytic 1 supporting sources ★☆☆☆☆

Antioxidant

  1. Journal of complementary & integrative medicine

Anxiolytic

  1. Journal of complementary & integrative medicine

Conditions

Crataegus azarolus has 2 reported investigations on conditions identified across 5 scientific publications and several other databases. The most consistently reported conditions include mental health, uterine contraction.

Conditions investigated for Crataegus azarolus
Condition Supporting sources Consensus
Mental health 1 supporting sources ★☆☆☆☆
Uterine contraction 1 supporting sources ★☆☆☆☆

Mental health

  1. Journal of complementary & integrative medicine

Uterine contraction

  1. Prostaglandins & other lipid mediators

Preparations

Crataegus azarolus has 5 reported preparations identified across 5 scientific publications and several other databases. The most consistently reported preparations include Methanolic extracts of dried berries, Methanolic extracts of dried flowers, Methanolic extracts of dried leaves, ethyl acetate extracts prepared from floral buds, ethyl acetate extracts prepared from opened flowers.

Preparations reported for Crataegus azarolus
Preparation Supporting sources Consensus
Methanolic extracts of dried berries 1 supporting sources ★☆☆☆☆
Methanolic extracts of dried flowers 1 supporting sources ★☆☆☆☆
Methanolic extracts of dried leaves 1 supporting sources ★☆☆☆☆
Ethyl acetate extracts prepared from floral buds 1 supporting sources ★☆☆☆☆
Ethyl acetate extracts prepared from opened flowers 1 supporting sources ★☆☆☆☆

Methanolic extracts of dried berries

  1. Journal of complementary & integrative medicine

Methanolic extracts of dried flowers

  1. Journal of complementary & integrative medicine

Methanolic extracts of dried leaves

  1. Journal of complementary & integrative medicine

Ethyl acetate extracts prepared from floral buds

  1. Pakistan journal of biological sciences : PJBS

Ethyl acetate extracts prepared from opened flowers

  1. Pakistan journal of biological sciences : PJBS