''Hedera colchica'' is a species of ivy (genus ''

Hedera ''Hedera'', commonly called ivy (plural ivies), is a genus of 12–15 species of evergreen climbing or ground-creeping woody plants in the family Araliaceae, native to western, central and southern Europe, Macaronesia, northwestern Africa and ...

'') which is native to Near and Middle East. It is commonly called Persian ivy or colchis ivy. It is an

evergreen In botany, an evergreen is a plant which has foliage that remains green and functional through more than one growing season. This also pertains to plants that retain their foliage only in warm climates, and contrasts with deciduous plants, which ...

climbing plant, growing to 30 m high where suitable surfaces (trees, cliffs, walls) 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.

Description

The leaves are alternate, they are of two types, with palmately five-lobed juvenile leaves on creeping and climbing stems, and unlobed cordate adult leaves, lauroid type, on fertile flowering stems exposed to full sun, usually high in the crowns of trees or the top of rock faces.

Stem Stem or STEM may refer to: Plant structures * Plant stem, a plant's aboveground axis, made of vascular tissue, off which leaves and flowers hang * Stipe (botany), a stalk to support some other structure * Stipe (mycology), the stem of a mushro ...

s are green. It has the largest leaves of any ivy to 15 cm wide and 25 cm long. The flowers are produced from late summer until late autumn, individually small, greenish, produced in large numbers in

umbel In botany, an umbel is an inflorescence that consists of a number of short flower stalks (called pedicels) that spread from a common point, somewhat like umbrella ribs. The word was coined in botanical usage in the 1590s, from Latin ''umbella'' "p ...

s, and very rich in

nectar Nectar is a sugar-rich liquid produced by plants in glands called nectaries or nectarines, either within the flowers with which it attracts pollinating animals, or by extrafloral nectaries, which provide a nutrient source to animal mutualists ...

, an important food source for

bee Bees are winged insects closely related to wasps and ants, known for their roles in pollination and, in the case of the best-known bee species, the western honey bee, for producing honey. Bees are a monophyly, monophyletic lineage within the ...

s and other insects. It flowers in September and fruits form during or after winter. The fruits are

berries A berry is a small, pulpy, and often edible fruit. Typically, berries are juicy, rounded, brightly colored, sweet, sour or tart, and do not have a stone or pit, although many pips or seeds may be present. Common examples are strawberries, raspb ...

, globular and black when ripe. They are an important food for many birds. There are one to five seeds in each berry, which are dispersed by the birds swallowing the berries. The following cultivars have gained the

Royal Horticultural Society The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of London, is the UK's leading gardening charity. The RHS promotes horticulture through its five gardens at Wisley (Surrey), Hyde Hall (Essex), Harlow Carr (Nort ...

Award of Garden Merit The Award of Garden Merit (AGM) is a long-established annual award for plants by the British Royal Horticultural Society (RHS). It is based on assessment of the plants' performance under UK growing conditions. History The Award of Garden Merit ...

: * ''H. colchica'' * 'Dentata', commonly called Bullock's heart ivy, or Elephant's ears. * 'Dentata variegata', synonyms 'Dentata aurea', 'Variegata' * 'Sulphur heart', synonym 'Paddy's pride'

Ecology

It is a woody

climbing

shrub A shrub (often also called a bush) is a small-to-medium-sized perennial woody plant. Unlike herbaceous plants, shrubs have persistent woody stems above the ground. Shrubs can be either deciduous or evergreen. They are distinguished from trees ...

, which can grow in a range of conditions. It prefers well-drained or

alkaline In chemistry, an alkali (; from ar, القلوي, al-qaly, lit=ashes of the saltwort) is a base (chemistry), basic, ionic compound, ionic salt (chemistry), salt of an alkali metal or an alkaline earth metal. An alkali can also be defined as ...

soils rich in nutrients and

humus In classical soil science, humus is the dark organic matter in soil that is formed by the decomposition of plant and animal matter. It is a kind of soil organic matter. It is rich in nutrients and retains moisture in the soil. Humus is the Lati ...

with good water provision, but is extremely tough and adaptable. Like many climbing plants, it prefers its roots in cool shade with its crown in full sun. It can live over 400 years, reaching heights of 30m where suitable surfaces (trees, cliffs, walls) are available. It climbs by means of

aerial root Aerial roots are roots above the ground. They are almost always adventitious. They are found in diverse plant species, including epiphytes such as orchids (''Orchidaceae''), tropical coastal swamp trees such as mangroves, banyan figs ('' F ...

lets with matted pads that cling strongly to the substrate. Its favoured distribution is humid

microclimate A microclimate (or micro-climate) is a local set of atmospheric conditions that differ from those in the surrounding areas, often with a slight difference but sometimes with a substantial one. The term may refer to areas as small as a few squ ...

s, such as

cloud forest A cloud forest, also called a water forest, primas forest, or tropical montane cloud forest (TMCF), is a generally tropical or subtropical, evergreen, montane, moist forest characterized by a persistent, frequent or seasonal low-level cloud c ...

, stream valleys, and the mountain ranges on the Turkish coast of the Black Sea, Asia minor, the Persian Gulf, Afghanistan, and some islands of the Red Sea.

Etymology

The ancient Latin name for Ivy.Gledhill, David (2008). "The Names of Plants". Cambridge University Press. (hardback), (paperback). pp 114, 193 Derived from the name ‘Colchis’ or ‘Colchidis’, a Caucasian area once famous for producing poisons.

References

{{Taxonbar, from=Q567948 colchica Garden plants