European hackberry typical
Celtis australis subsp. australis
The typical subspecies of the Mediterranean nettle tree, characterized by smooth gray bark and flexible …
European hackberry Caucasian (Celtis australis subsp. caucasica)
Caucasian nettle tree
Caucasian hackberry
Silhouette: T. Michael Keesey
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Celtis australis subsp. caucasica: Caucasian Nettle Tree Guide
Celtis australis subsp. caucasica stands as a resilient deciduous tree native to the rocky slopes and dry valleys of the Caucasus and Central Asia. This subspecies, commonly known as the Caucasian nettle tree, belongs to the Cannabaceae family and thrives in challenging environments. Its deep root system and tolerance to drought make it an ecological cornerstone in arid mountain landscapes.
It produces small, edible drupes that serve as a vital food source for local wildlife during the autumn months. Culturally, the tree has long been valued for its exceptionally hard wood and traditional medicinal uses.
Taxonomy
- ∟ царство Plantae
- ∟ division Tracheophytes (Vascular Plants)
- ∟ subdivision Spermatophytes (Seed plants)
- ∟ Angiosperms
- ∟ mesangiosperms
- ∟ eudicots
- ∟ Superrosids
- ∟ rosids
- ∟ order Rosales
- ∟ family Cannabaceae (Hemp family)
- ∟ genus Celtis (Hackberry)
- ∟ species Celtis australis (European Nettle Tree)
- ∟ subspecies Celtis australis subsp. caucasica (European hackberry Caucasian)
Morphology
The vegetative structure of this taxon features a compact, rounded crown and smooth, light-gray bark. Leaves are ovate-oblong, measuring 4 to 8 centimeters in length, with an asymmetrical base and sharply serrate margins. The upper leaf surface feels distinctly scabrous, while the underside is covered with soft, dense hairs.
Its reproductive organs consist of small, inconspicuous flowers that emerge in spring. These unisexual and bisexual flowers are wind-pollinated and lack petals.
- Male flowers cluster in small cymes at the base of young twigs.
- Hermaphrodite flowers appear singly in the upper leaf axils.
The resulting fruit is a globose drupe, about 8 to 10 millimeters wide. It turns dark reddish-brown or black when fully ripe and contains a single hard seed.
Flowering season
Spring
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Name
Dec
Applications
The exceptionally hard and elastic wood of this tree has historically been used to manufacture tool handles, agricultural implements, and musical instruments. Its dense grain makes it highly resistant to splitting and wear.
The edible drupes, which have a sweet, dry flesh, are consumed locally and used in traditional recipes. Additionally, the deep root system of the subspecies is utilized in land restoration projects to prevent soil erosion on steep, arid hillsides.
Interesting facts
- Ancient survivalist: This subspecies can grow directly out of rocky crevices, demonstrating extreme tolerance to poor, alkaline soils.
- Wildlife haven: The sweet drupes remain on the branches into winter, providing critical nourishment for migratory birds and small mammals.
- Folk medicine: Traditional healers in its native range have used the leaves and bark to prepare astringent decoctions.
Geography of distribution
- Armenia
- Azerbaijan
- Georgia
- Iran
- Afghanistan
Sources
- POWO: Plants of the World Online (Royal Botanic Gardens, Kew)
- WFO: World Flora Online database
- GBIF: Global Biodiversity Information Facility
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