KRANTZ ALOE

This post is part of the Floral Friday Fotos meme.

CROWN-OF THORNS

Euphorbia milii (crown-of-thorns, Christ plant, Christ thorn) is a species of flowering plant in the spurge family Euphorbiaceae, a native of Madagascar. The species name commemorates Baron Milius, once Governor of Réunion, who introduced the species to France in 1821. It is suspected that the species was introduced to the Middle East in ancient times, and legend associates it with the crown of thorns of Christ.

It is a succulent climbing shrub growing to 1.8 m tall, with densely spiny stems, the straight, slender spines up to 3 cm long, which help it scramble over other plants. The leaves are found mainly on new growth, and are obovate, up to 3.5 cm long and 1.5 cm broad. The flowers are small, subtended by a pair of conspicuous petal-like bracts, variably red, pink or white, up to 12 mm broad. The sap is moderately poisonous. Wat Phrik in Thailand claims to be the home of the world's tallest Christ plant.

This post is part of the Floral Friday Fotos meme.

ZEBRA ALOE

Aloe maculata (synonym Aloe saponaria; commonly known as the soap aloe or zebra aloe) is a Southern African species of aloe in the Asphodelaceae family. Local people in South Africa know it informally as the "Bontaalwyn" in Afrikaans, or "Lekhala" in the Sesotho language. It is a very variable species and hybridises easily with other similar aloes, sometimes making it difficult to identify.

The leaves range in colour from red to green, but always have distinctive "H-shaped" spots. The flowers are similarly variable in colour, ranging from bright red to yellow, but are always bunched in a distinctively flat-topped raceme. The inflorescence is borne on the top of a tall, multi-branched stalk and the seeds are reputedly poisonous.

This species was previously known as Aloe saponaria (a name that came from the Latin "sapo" meaning soap, as the sap makes a soapy lather in water - the juice from the leaves is traditionally used as soap by indigenous people). Its currently accepted name, according to the South African National Biodiversity Institute (SANBI), is Aloe maculata ("maculata" means speckled or marked). Taxonomically, it forms part of the Saponariae series of very closely related Aloe species, together with Aloe petrophila, Aloe umfoloziensis, Aloe greatheadii and Aloe davyana.

The Soap Aloe is highly adaptable and is naturally found in a wide range of habitats across Southern Africa, from Zimbabwe in the north, to the Cape Peninsula in the south. Specifically, it is native to southern and eastern South Africa, south-eastern Botswana and Zimbabwe. In addition, it is now planted around the world as a popular landscape plant in warm desert regions – especially in the United States, where it is the most popular ornamental aloe in the Tucson, Arizona area, and is also popular in California.

This post is part of the Floral Friday Fotos meme.

AEONIUM

The genus Aeonium includes at least 35 species of tender, rosetted, leaf succulents mainly from the Canary Islands but also found in Madeira, Morocco and Ethiopia. These succulent plants vary in size from small herbs almost flat against the ground to woody shrubs with stout basal stems supporting one or more disc-shaped rosettes, giving them a distinctive appearance. The generic name comes from the Greek "aionion" = everliving. Flowers are panicles of numerous small yellow or white florets. Some Aeonium species are monocarpic. 

Natural hybrids are common and there are many attractive horticultural hybrids and cutivars. The sap of Aeonium lindleyi is a traditional antidote to the toxic sap of Euphorbias e.g. E. canariensis. Aeonium includes the former genera Greenonium and Greenovia (Mountain Roses), which may be seen occasionally on plant labels and in old books. Many species were originally classified as Sempervivums.

Aeonium undulatum, shown here, is a succulent, evergreen subshrub, is one of the larger species of Aeonium with the rosette often over a metre from the ground on a single stem. Other rosettes do not branch off this stem (normally) but grow from the bottom, unlike most aeoniums. The plant is monocarpic so the flowering stem will die when it flowers which is normally after about 5 years. The specific epithet undulatum comes from the Latin unda, meaning "wave" and refers to the wavy leaves. Synonyms include Sempervivum undulatum and Sempervivum youngianum. The common name "saucer plant" is applied to this and other plants of a similar habit. In temperate regions this plant is grown under glass. It has gained the Royal Horticultural Society's Award of Garden Merit.

This post is part of the Floral Friday Fotos meme.

SOAP ALOE

Aloe maculata (synonym Aloe saponaria; commonly known as the soap aloe or zebra aloe) is a Southern African species of aloe in the Asphodelaceae family. Local people in South Africa know it informally as the "Bontaalwyn" in Afrikaans, or "Lekhala" in the Sesotho language. It is a very variable species and hybridises easily with other similar aloes, sometimes making it difficult to identify.

The leaves range in colour from red to green, but always have distinctive "H-shaped" spots. The flowers are similarly variable in colour, ranging from bright red to yellow, but are always bunched in a distinctively flat-topped raceme. The inflorescence is borne on the top of a tall, multi-branched stalk and the seeds are reputedly poisonous. This species was previously known as Aloe saponaria (a name that came from the Latin "sapo" meaning soap, as the sap makes a soapy lather in water - the juice from the leaves is traditionally used as soap by indigenous people).

Its currently accepted name, according to the South African National Biodiversity Institute (SANBI), is Aloe maculata ("maculata" means speckled or marked). Taxonomically, it forms part of the Saponariae series of very closely related Aloe species, together with Aloe petrophila, Aloe umfoloziensis, Aloe greatheadii and Aloe davyana.

The Soap Aloe is highly adaptable and is naturally found in a wide range of habitats across Southern Africa, from Zimbabwe in the north, to the Cape Peninsula in the south. Specifically, it is native to southern and eastern South Africa, south-eastern Botswana and Zimbabwe. In addition, it is now planted around the world as a popular landscape plant in warm desert regions – especially in the United States, where it is the most popular ornamental aloe in the Tucson, Arizona area, and is also popular in California. It is very common in Australia as a garden plant.

This post is part of the Floral Friday Fotos meme.