FFF576 - NORFOLK ISLAND HIBISCUS

Lagunaria is a monotypic genus in the family Malvaceae. It is an Australian plant endemic to Lord Howe Island, Norfolk Island and parts of coastal Queensland. It has been introduced to many parts of the world. The genus was named in honour of Andrés Laguna, a Spanish botanist and a physician to Pope Julius III. It now consists of the single species Lagunaria patersonia, commonly known as the Pyramid Tree or Norfolk Island Hibiscus. It is not a true Hibiscus, however, but does belong to the same plant family, Malvaceae.

Recently, L. queenslandica from north-east Queensland has been recognised. The latter was previously regarded as L. patersonia subsp. bracteata but has been raised to species status on the basis of morphological and ecological differences. L. patersonia also is more robust in habit and has larger, scaly leaves. The two species also differ in their habitats with L. patersonia generally occurring in rainforest while L. queenslandica is found in non-rainforest areas often along rivers and creeks.

Norfolk Island hibiscus is a medium to large tree which can reach about 12-20 metres in height. It has dense, greyish-green leaves which are oval shaped to about 100 mm long and covered in soft hairs when young. The pink flowers are of typical hibiscus shape and appear in the leaf axils in spring and early summer. They are generally a pink to mauve but deeper coloured forms are in cultivation. These trees are often planted along Melbourne streets and in parks and when in flower can be quite spectacular.

The seed capsules are filled with irritating hairs giving rise to another common name, Cow Itch Tree. The "cow" part however appears to be a misnomer. In many parts of Australia, Lagunaria is considered a pest, and is commonly referred to as the Itchy Bomb Tree due to the tiny, almost invisible, hairs inside the seed pods which, if the seeds pods are split open, can lodge in the skin like tiny barbs of broken glass, causing a great deal of pain.

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FFF379 - TREE MALLOW

Malva arborea (also known as Lavatera arborea, or, more recently as Malva eriocalyx), the tree mallow, is a species of mallow native to the coasts of western Europe and the Mediterranean region, from the British Isles south to Algeria and Libya, and east to Greece. It is a shrubby annual, biennial or perennial plant growing to 0.5–2 m (rarely 3 m) tall. The leaves are orbicular, 8–18 cm diameter, palmately lobed with five to nine lobes, and a coarsely serrated margin.

The flowers are 3–4 cm diameter, dark pink to purple and grow in fasciculate axillary clusters of two to seven. It grows mainly on exposed coastal locations, often on small islands, only rarely any distance inland. Although long considered a species of Lavatera, genetic and morphological analysis by Martin Forbes Ray, reported in 1998, suggested it was better placed in the genus Malva, in which it was named Malva dendromorpha M.F.Ray. However the earlier name Malva arborea L. (Webb & Berthol.) was validly published and has priority over Malva dendromorpha.

Malva arborea tolerates sea water to varying degrees, at up to 100% sea water in its natural habitat, excreting salt through glands on its leaves. This salt tolerance can be a competitive advantage over inland plant species in coastal areas. Its level of salinity tolerance is thought to be improved by soil with higher phosphate content, making guano enrichment particularly beneficial.

The leaves of the species are used in herbal medicine to treat sprains, by steeping them in hot water and applying the poultice to the affected area. It is theorised that lighthouse keepers may have spread the plant to some British islands for use as a poultice and to treat burns, an occupational hazard. Thought to have been used as an alternative to toilet paper. The seeds are edible and are known in Jersey as "petit pains", or "little breads". Tree mallow was considered a nutritive animal food in Britain in the 19th century, and is still sometimes used as animal fodder in Europe. For human consumption, some sources describe the leaves of tree mallow as edible, although not as palatable as common mallow, unless cut very thinly, because of the velour-like texture.

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FFF317 - NORFOLK ISLAND HIBISCUS

Lagunaria is a monotypic genus in the family Malvaceae. It is an Australian plant endemic to Lord Howe Island, Norfolk Island and parts of coastal Queensland. It has been introduced to many parts of the world. The genus was named in honour of Andrés Laguna, a Spanish botanist and a physician to Pope Julius III. It now consists of the single species Lagunaria patersonia, commonly known as the Pyramid Tree or Norfolk Island Hibiscus. It is not a true Hibiscus, however, but does belong to the same plant family, Malvaceae.

Recently, L. queenslandica from north-east Queensland has been recognised. The latter was previously regarded as L. patersonia subsp. bracteata but has been raised to species status on the basis of morphological and ecological differences. L. patersonia also is more robust in habit and has larger, scaly leaves. The two species also differ in their habitats with L. patersonia generally occurring in rainforest while L. queenslandica is found in non-rainforest areas often along rivers and creeks.

Norfolk Island hibiscus is a medium to large tree which can reach about 12-20 metres in height. It has dense, greyish-green leaves which are oval shaped to about 100 mm long and covered in soft hairs when young. The pink flowers are of typical hibiscus shape and appear in the leaf axils in spring and early summer. They are generally a pink to mauve but deeper coloured forms are in cultivation.

These trees are often planted along Melbourne streets and in parks and when in flower can be quite spectacular. The seed capsules are filled with irritating hairs giving rise to another common name, Cow Itch Tree. The "cow" part however appears to be a misnomer. In many parts of Australia, Lagunaria is considered a pest, and is commonly referred to as the Itchy Bomb Tree due to the tiny, almost invisible, hairs inside the seed pods which, if the seeds pods are split open, can lodge in the skin like tiny barbs of broken glass, causing a great deal of pain.

Join me for Floral Friday Fotos by linking your flower photos below, and please leave a comment once you have done so! 

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FFF277 - KURRAJONG

Brachychiton acerifolius, commonly known as the Illawarra Flame Tree, is a large tree of the family Malvaceae native to subtropical regions on the east coast of Australia. It is famous for the bright red bell-shaped flowers that often cover the whole tree when it is leafless. Along with other members of the genus Brachychiton, it is commonly referred to as a Kurrajong.

Brachychiton acerifolius was first described in 1855 by W. Macarthur and C. Moore. It is sometimes spelled as Brachychiton acerifolium, under the assumption that the genus name Brachychiton is (Greek) neuter. In fact, Brachychiton is masculine, and hence the correct species epithet is acerifolius. The name Brachychiton is derived from the Greek brachys, meaning short, and chiton, a type of tunic, as a reference to the coating on the seed.

The specific epithet acerifolius suggests the appearance of the foliage is similar to that of the genus Acer, the maples. This tree is tolerant of temperate climates and is now cultivated world-over for its beauty. However, the maximum height of 40 metres is reached only in the original, warmer, habitat. It usually grows to be about 20 metres. Similarly to its Kurrajong relatives the leaves are variable, with up to 7 deep lobes. It is deciduous - shedding its leaves after the dry season.

The spectacular flowering occurs in late spring and new foliage is ready for the summer rains. In areas where the winter is not particularly dry, this natural rhythm may become somewhat erratic and the tree may flower only partially. Flowers are scarlet bells with 5 partially fused petals. The pod-like fruits (technically known as follicles) are dark brown, wide, boat-shapes and about 10 cm long. They contain masses of thin bristles that stick in the skin, as well as yellow seeds. These are nutritious and were eaten by Aborigines after toasting.

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FFF226 - HIBISCUS 'TROPICANA'

Hibiscus rosa-sinensis, known colloquially as Chinese hibiscus, China rose, Hawaiian hibiscus, and shoe flower, is a species of flowering plant in the Hibisceae tribe of the family Malvaceae, native to East Asia. It is widely grown as an ornamental plant throughout the tropics and subtropics. As it does not tolerate temperatures below 10 °C, in temperate regions it is best grown under glass. However, plants in containers may be placed outside during the summer months or moved into shelter during the winter months.

Numerous varieties, cultivars, and hybrids are available, with flower colours ranging from white through yellow and orange to scarlet and shades of pink, with both single and double sets of petals. The cultivar 'Cooperi' has gained the Royal Horticultural Society's Award of Garden Merit.

Illustrated here is a Flamenco™ Hibiscus 'Tropicana', featuring spectacular long-lasting (4-5 days) large flowers. These varieties have a compact, well branched habit that provides a neat frame for the lush dark green foliage and the many spectacular full blooms that appear continuously during the warmer months.

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FFF221 - ABUTILON

Abutilon or 'Chinese lanterns' are closely related to hibiscus, and most of the hundred or so species have pendulous, hibiscus-like flowers. Cultivars produced by hybridising some of the South American abutilons have all been placed in one group known as Abutilon x hybridum, and these are the ones most commonly grown in Australian gardens.

They have a wispy, delicate form and colourful, lantern-shaped flowers. For gardeners who prefer plants with a more dense habit, new compact varieties are also available. Another popular abutilon is Abutilon megapotamicum, which is a prostrate or ground covering species with small orange flowers.

Abutilon are evergreen shrubs with attractive maple-like leaves and an open, pendulous habit. They grow to about 2-3 metres tall. Flowers in the Southern Hemisphere are produced in September to December, but they spot flower at other times. Flower colours include white, pink, red, yellow, orange and salmon.

These plants grow well in most parts of Australia, except for the very cold mountain zones. In inland areas be sure to water well and keep protected with mulch. In hot inland climates abutilons appreciate some light shade.

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FFF161 - HIBISCUS 'ATHENACUS'

Hibiscus rosa-sinensis, known colloquially as Chinese hibiscus, China rose, Hawaiian hibiscus, and shoe flower, is a species of flowering plant in the Hibisceae tribe of the family Malvaceae, native to East Asia.

It is widely grown as an ornamental plant throughout the tropics and subtropics. As it does not tolerate temperatures below 10 °C, in temperate regions it is best grown under glass. However, plants in containers may be placed outside during the summer months or moved into shelter during the winter months.Numerous varieties, cultivars, and hybrids are available, with flower colours ranging from white through yellow and orange to scarlet and shades of pink, with both single and double sets of petals. The cultivar 'Cooperi' has gained the Royal Horticultural Society's Award of Garden Merit.

Illustrated here is a Flamenco™ Hibiscus 'Athenacus', featuring spectacular long-lasting (4-5 days) large flowers. These varieties have a compact, well branched habit that provides a neat frame for the lush dark green foliage and the many spectacular full blooms that appear continuously during the warmer months.

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