Strelitzia Reginae

''Strelitzia reginae'', commonly known as the crane flower, bird of paradise, or in Nguni, is a species of flowering plant native to the Cape Provinces and KwaZulu-Natal in South Africa. An evergreen perennial, it is widely cultivated for its dramatic flowers. In temperate areas it is a popular houseplant.

Taxonomy

Joseph Banks described the species in 1788. The specific epithet ''reginae'' means “of the queen”, and commemorates the British queen Charlotte of Mecklenburg-Strelitz. Common names such as “crane flower” and “bird of paradise” reference the open flower’s resemblance to the head and beak of a colourful exotic bird.

A new subspecies was discovered growing alongside the Mzimvubu River in South Africa’s Eastern Cape in 2002. When wild-collected plants began to flower in the greenhouse at Kirstenbosch, they were noted to have white, rather than the typical blue inner petals. They also had a shorter stigma ( vs. ) and subtle differences of the leaves. The new subspecies is called ''Strelitzia reginae'' subsp. ''mzimvubuensis''.

Genetic analysis reveals '' Strelitzia juncea'' has been shown to be genetically nested within ''S. reginae''. It is possibly a mutation that is in the process of speciating.

Description

The plant grows to tall, with large, strong leaves long and broad, produced on petioles up to long. The leaves are evergreen and arranged in two ranks, making a fan-shaped crown. The flowers stand above the foliage at the tips of long stalks. The hard, beak-like sheath from which the flower emerges is termed the ''spathe''. This is placed perpendicular to the stem, which gives it the appearance of a bird's head and beak; it makes a durable perch for holding the sunbirds which pollinate the flowers. The flowers, which emerge one at a time from the spathe, consist of three orange sepals and three purplish-blue or white petals. Two of the petals are joined together to form an arrow-like nectary. When the sunbirds sit to drink the nectar, the third petal opens to release the anther and cover their feet in pollen.

Cultivation and uses

''Strelitzia reginae'' is very popular as an ornamental plant. It was first introduced to Britain in 1773, when it was grown at the Royal Botanic Gardens, Kew. Since then, it has been widely introduced around the world, including the Americas and Australia, growing well in any area that is sunny and warm. In the United States, Florida and California are the main areas of cultivation, due to their warm climate. It is a common ornamental plant in Southern California, and has been chosen as the official flower of City of Los Angeles.

In areas with cold winters it is normally grown under glass, in a cool sunny position such as a greenhouse or conservatory, as it tolerates only light frosts and does not grow well in temperatures below . However, it may be placed outside during the summer months. It has gained the Royal Horticultural Society's Award of Garden Merit.

It is a low-maintenance plant that is easy to grow in the garden; it is fairly tolerant of soil conditions and needs little water once established. If cared for well, they will flower several times in a year. They will thrive in rich loamy soil, especially when they get plenty of water throughout the year. They do well in full sun to semi-shade and respond well to regular feeding with a controlled release fertiliser and compost. They are sensitive to cold and need to be sheltered from frost, as it can damage the flowers and leaves.

''S. reginae'' is propagated by seed or division. Seedlings are slow-growing and will not bloom for three to five years, though it can exceptionally flower at two years. It flowers only when properly established and division of the plant may affect flowering patterns. The flowers are, however, quite long-lasting once they appear. Peak flowering is in the winter and early spring. There is a yellow-flowered cultivar of this plant known as ‘Mandela's Gold’.

Allergenicity

Bird-of-paradise plants have an OPALS allergy scale rating of 1, and are considered "allergy-fighting"; they produce no airborne pollen.

Gallery

File:Strelitzia reginae0.jpg, var. ''taki'' Hort
File:2010-03-05 13 16 21 Portugal-Jardim Botânico da Madeira.jpg, closeup, Jardim Botânico da Madeira
File:StrelitziaReginaePlant.jpg, Bermuda Botanical Gardens
File:Bird of paradise -- Strelitzia.jpg, Nassau Bay, Texas
File:Strelitzia reginae - Mandela's gold.jpg, 'Mandela's Gold', Kirstenbosch National Botanical Garden, Cape Town
File:The Bird of Paradise Flower .jpg, Kolkata, India

References

External links

Catalogue of LifeEcoPortEncyclopedia of LifeEPPO Global DatabaseFloriDataGBIFiNaturalistITISGlobal Biotic InteractionsMissouri Botanical GardenPlants of the World OnlinePlantZAfricaSF Botanical GardenUniversity of Florida EDIS

{{Authority control

Strelitziaceae
Flora of the Cape Provinces
Flora of KwaZulu-Natal
Endemic flora of South Africa
Plants described in 1789
Taxa named by Joseph Banks
Charlotte of Mecklenburg-Strelitz