Hugh A. McAllister

Hedera cypria is a species of Ivy (genus Hedera) which is endemic to the island of Cyprus. The species is a climbing plant. It is natively found in higher altitudes in Cyprus. H. cypria has unique trichomes and fruits to separate it from closely related plants. It is not considered an invasive ivy where it is found in the United States.

Sorbus frutescens is a species of rowan native to Gansu province of China. Often mistakenly lumped in with Sorbus koehneana, it is a very small tree reaching only 2 m at maturity, with white fruit against dark green pinnate leaves which turn shades of red and bronze in autumn. It has gained the Royal Horticultural Society's Award of Garden Merit as an ornamental.

Hedera maroccana, the Moroccan ivy, is a species of ivy (genus Hedera) 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 (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 a good bit faster than the related Hedera hibernica and Hedera helix. The genus name Hedera is the classical Latin name for ivy. Maroccana is the

Sorbus rosea is a species of rowan native to Kashmir in Pakistan. It is a small tree with large pink flowers and berries, dark green leaves turning to red in the Autumn, and reddish bark with silver patches. It has gained the Royal Horticultural Society's Award of Garden Merit as an ornamental.

Sorbus khumbuensis is a species of rowan in the family Rosaceae. It is part of the Sorbus microphylla aggregate with crimson fruits, turning white. It has small long-oval shaped leaves with 12-19 pairs of leaflets per leaf. It is native to eastern Nepal, and is named after the Khumbu area. This plant is cultivated in parks and gardens as an ornamental plant.

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Sorbus pseudovilmorinii is a species of variable deciduous flowering tree.

Sorbus pseudohupehensis, the Chinese mountain ash, is a species of rowan native to Yunnan province in China. Available from commercial suppliers under a variety of names, it has gained the Royal Horticultural Society's Award of Garden Merit as an ornamental.

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Sorbus forrestii, commonly known as Forrest's rowan, is a species of flowering plant in the family Rosaceae, native to western China. Growing to 8 m (26 ft) tall and broad, it is a spreading deciduous tree with leaves up to 20 cm (7.9 in) long, each divided into up to 19 leaflets (pinnate). White flowers in spring are followed by masses of white berries with pink tips in autumn. The Latin-specific epithet forrestii honours the Scottish botanist and plant collector George Forrest (1873-1932), who brought thousands of plant specimens and seeds back to Britain. Forrest had his base in North West

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