Hedera pastuchovii

Hedera pastuchovii, (Araliaceae) is a species of ivy native to eastern Transcaucasia and listed in The Red Book of the Azerbaijan SSR, 1989.

Hedera pastuchovii
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Apiales
Family:	Araliaceae
Genus:	Hedera
Species:	H. pastuchovii
Binomial name
Hedera pastuchovii Woronow

It is an evergreen woody climber, growing in mixed forests to 20–30 m high where suitable trees are available but failing to thrive as a groundcover plant. It climbs by means of aerial rootlets which cling to the substrate.

Leaves thin, glossy, light green, entire or with wavy margins, 10–12 cm x 6–9 cm, often rounded and rarely oblong-elliptic, deeply or shallowly lobed, cordate or cuneate at the base.

A rare relict species of the Greater Caucasus (Balakan, Zagatala, Gakh, Sheki and Khachmaz regions) and the Talysh (Astara, Lankaran, Masalli regions). Outside Azerbaijan - Eastern Transcaucasia, Iran. Habitat in the forests of the lowlands up to the middle mountain zone mainly on the forest edges and clearings, climbing high into trees, rather than scrambling over rocks. It is protected in the Zakatala and Girkan reserves. A nature reserve is being set up in the Samur River delta (Khachmaz region) to protect the lowland riparian woodlands which form its preferred habitat.

Hedera Pastuchovii G Woronow has a chromosome number of 2n= 144 (6x), making it a hexaploid. In addition to the Caucasus, H. pastuchovii is found also in the Elburz Mountains of Iran. In a recent study of phylogenetics, H. Pastuchovii, has been found to be related to other species of parsimony through a test of cpDNA restriction site variation analysis. In the clade containing Asian taxa, the results showed that the pre-existing phylogenies are largely congruent to one another, helping to place one additional clade helped resolve the positions of H. maroccana, H. iberica, and H. canariensis in the combined analysis.[1]

Hedera Pastuchovii is a climbing plant that can be found on many trees or walls, as it clings up to any surface and is good for climbing or scaling any walls or trees.