Hedera pastuchovii

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Hedera pastuchovii
Hedera pastuchovii kz6.jpg
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Apiales
Family: Araliaceae
Genus: Hedera
Species:
H. pastuchovii
Binomial name
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.

Contents

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. It is commonly known as Russian Ivy - so named from the formerly Russian-dominated area to which it is native. [1]

Description

Leaves are 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.

Hedera pastuchovii has a chromosome number of 2n= 144 (6x), making it a hexaploid. 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. [2]

Distribution and habitat

Hedera pastuchovii rare relic species of the Greater Caucasus (Balakan, Zagatala, Gakh, Sheki and Khachmaz regions) and the Talysh (Astara, Lankaran, Masalli regions). Outside Azerbaijan - Eastern Transcaucasia, Iran. In addition to the Caucasus, H. pastuchovii is found also in the Elburz Mountains of Iran.

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. Its habitat includes 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 Zagatala State Reserve 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.

Cultivated ornamental

Like other Hedera species, H. pastuchovii may be used to clothe tall or wide walls for the aesthetic appeal of its foliage and to hide unsightly walls, fences and tree stumps, although, unlike some other species, its growth habit prevents its being used as ground cover. Numerous cultivars with variegated foliage and/or unusual leaf shapes have been selected for horticultural use. In cultivation in the UK the cultivar ‘Ann Ala’ has gained the Royal Horticultural Society’s Award of Garden Merit. [1] [3]

Related Research Articles

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<i>Hedera</i> Genus of flowering plants in the family Araliaceae

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<i>Parthenocissus quinquefolia</i> Species of flowering plant

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<i>Hedera hibernica</i> Species of vine

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<i>Hedera helix</i> Species of flowering plant

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<span class="mw-page-title-main">Zagatala State Reserve</span> Place

Zagatala State Nature Reserve - is a reserve in the Zagatala and Balakan districts of Azerbaijan. It was established in 1929 in the middle part of the southern foothills of the Greater Caucasus Mountains in the territory of Zagatala and Balakan districts on an area of 25200 hectares. It is located on the eastern slope of the Greater Caucasus Range in Azerbaijan. Zagatala Reserve was established in 1930-0 as a separate reserve together with the Balakan Reserve. The height of the reserve varies from 650 to 3646 m above sea level. The flora of the base of the reserve consists of mountain forests and mountain meadows. More than a thousand species of modern flora are observed here. [2] The territory of the reserve has changed many times and now stands at 28,844 hectares. There are more than 900 plant species in the reserve, which is 1/6 of the flora of Azerbaijan. More than 60% of the reserve area consists of broadleaf forests. The main purpose of the reserve is to protect the natural complexes of rare plants on the southern slopes of the Greater Caucasus Mountains.

<i>Schefflera taiwaniana</i> Species of flowering plant

Schefflera taiwaniana (台湾鹅掌柴) is a species of flowering plant in the family Araliaceae, native to Taiwan, where it is scattered throughout coniferous forests at 2,000–3,000 m (6,600–9,800 ft). Growing to 4 m (13 ft) tall by 2.5 m (8.2 ft) broad, it is an evergreen shrub or small tree. Large leaves up to 15 cm (5.9 in) long are composed of up to 11 ovate leaflets arranged radially around a central stalk. Young leaves are covered in silver hairs, while mature leaves have a smooth surface. Sprays of flowers in late summer are followed by dark berries in winter - a valued food source for insects and birds.

<i>Hedera nepalensis</i> Species of vine

Hedera nepalensis is a species of perennial Ivy native to Nepal and Bhutan, as well as Afghanistan, Pakistan, India, China, Laos, Myanmar, Thailand, and Vietnam, at altitudes of about 1000–3000 m. Plants grow up to 30 m in height, with simple leaves ranging from 2–15 cm long, and yellow flowers.

<i>Hedera canariensis</i> Species of vine

Hedera canariensis, the Canary Island ivy, Canary ivy or Madeira ivy, is a species of ivy, native to the Canary Islands and possibly the Atlantic coast of northern Africa.

Hedera maderensis, the Madeiran ivy, is a species of ivy which is native to the Atlantic coast in Madeira island. It is a plant of botanical family Araliaceae, species endemic to the island of Madeira with the name: Hedera maderensis. Formerly a subspecies named Hedera maderensis iberica, one iberian subspecies in west Iberian peninsula was subsequently classified as a distinct species. It is quite common in Madeira and lives in slopes rock, soil, trunks of trees especially in Laurel forest of Barbusano.

<i>Hedera maroccana</i> Species of vine

Hedera maroccana, the Moroccan ivy, is a species of ivy which is native to the Atlantic coast in northern Africa. It is an evergreen climbing plant, growing to 20–30 m high where suitable surfaces are available, and also growing as ground cover where there are no vertical surfaces. It climbs by means of aerial rootlets which cling to the substrate. In warm climates, it grows more rapidly and becomes established a good bit faster than the related Hedera hibernica and Hedera helix.

<i>Hedera colchica</i> Species of vine

Hedera colchica is a species of ivy which is native to Near and Middle East. It is commonly called Persian ivy or colchis ivy. It is an evergreen climbing plant, growing to 30 m high where suitable surfaces are available, and also growing as ground cover where there are no vertical surfaces. It climbs by means of aerial rootlets which cling to the substrate. In warm climates, it grows more rapidly and becomes established faster than other Hedera species.

<i>Hedera iberica</i> Species of vine

Hedera iberica is a species of ivy which is native to the western Iberian peninsula, and northern Morocco. It was formerly classified as a sub-species named Hedera maderensis iberica in Hedera maderensis. The Iberian subspecies was subsequently classified as a distinct species. It grows on slopes, rock, soil, trunks of trees.

<i>Hedera azorica</i> Species of vine

Hedera azorica, the Azores ivy, is a species of ivy which is native to the Atlantic coast in the Azores Islands. It is an evergreen climbing plant, growing to 20–30 m high where suitable surfaces are available, and grows as ground cover where there are no vertical surfaces. It climbs by means of aerial rootlets which cling to the substrate.

Hedera cypria, is a species of Ivy which is endemic to the island of Cyprus. It is an evergreen climbing plant, growing slowly to 20–30 m high where suitable surfaces are available, and also growing as ground cover where there are no vertical surfaces. It climbs by means of aerial rootlets which cling to the substrate. It is more common at higher altitudes in rocky, shadowy riverine forest, over 400–650 m. In its natural habitat it can be distinguished easily from Hedera helix subsp. poetarum, also present, because the latter has yellow fruits, while Hedera cypria is always black-fruited.

<i>Hedera rhombea</i> Species of vine

Hedera rhombea, the Japanese ivy or songak, is a species of ivy in the Araliaceae family native to East Asia. Formerly named Hedera pedunculata, some subspecies could be subsequently classified as a distinct species. It is common on rocky slopes and growing up the trunks of trees, especially in laurel forest, a type of cloud forest.

<span class="mw-page-title-main">Shaki-Zagatala Economic Region</span> Economic region of Azerbaijan

Shaki-Zagatala Economic Region is one of the 14 economic regions of Azerbaijan. It borders Russia to the north and Georgia to the west, as well as the economic regions of Quba-Khachmaz, Mountainous Shirvan, Central Aran, and Ganja-Dashkasan. The region consists of the districts of Balakan, Zagatala, Gakh, Shaki, Oghuz and Qabala. It has an area of 8,840 square kilometres (3,410 sq mi). Its population was estimated to be at 630.4 thousand people in January 2021.

References

  1. 1 2 "RHS Plantfinder - Hedera pastuchovii 'Ann Ala'" . Retrieved 3 March 2018.
  2. Ackerfield, Jennifer; Wen, Jun (July 2003). "Evolution of Hedera (The Ivy Genus, Araliaceae): Insights from Chloroplast DNA Data". International Journal of Plant Sciences. 164 (4): 593–602. doi:10.1086/375423. JSTOR   10.1086/375423. S2CID   84324930.
  3. "AGM Plants - Ornamental" (PDF). Royal Horticultural Society. July 2017. p. 45. Retrieved 2 March 2018.