| Aloe helenae | |
|---|---|
 | |
| In cultivation in the Jardin botanique de Lyon | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Asphodelaceae |
| Subfamily: | Asphodeloideae |
| Genus: | Aloe |
| Species: | A. helenae |
| Binomial name | |
| Aloe helenae Danguy [3] | |
Aloe helenae is a species of plant in the genus Aloe . It is endemic to Madagascar, and is an endangered species.
Aloe helenae in the wild grows to about 4 m (13 ft) and does not usually offset, although it is known to do so in cultivation. The trunk has a rosette of leaves at the top. These are channeled and recurved, usually green but may have red tones in bright light or when stressed by drought. The inflorescence consists of racemes, each under 30 cm (1 ft) long. The flower buds are red, opening with pale yellow petals. [4] [5]
Aloe helenae was first described by Paul Auguste Danguy in 1929. [3] The specific epithet honors Helen Decary, the wife of Raymond Decary, [4] who was the first to describe a number of Madagascan succulents. [6]
Aloe helenae is native to Madagascar. It is known only from few small populations in the former Toliara Province in the southwest of Madagascar. It grows in spiny forests in sandy soils. [4] It is classified as "endangered" in the IUCN Red List. [1]
Aloe is a genus containing over 650 species of flowering succulent plants. The most widely known species is Aloe vera, or "true aloe". It is called this because it is cultivated as the standard source for assorted pharmaceutical purposes. Other species, such as Aloe ferox, are also cultivated or harvested from the wild for similar applications.
Operculicarya decaryi, known as elephant tree or jabily, is a thick stemmed succulent plant species in the family Anacardiaceae, named after the botanical collector Raymond Decary. It is found in Madagascar and is also grown as a bonsai tree.
Aloe arborescens, the krantz aloe or candelabra aloe, is a species of flowering succulent perennial plant that belongs to the genus Aloe, which it shares with the well known and studied Aloe vera. The specific epithet arborescens means "tree-like". Aloe arborescens is valued by gardeners for its succulent green leaves, large vibrantly-colored flowers, winter blooming, and attraction for birds, bees, and butterflies.
Aloe polyphylla, the spiral aloe, kroonaalwyn, lekhala kharetsa, or many-leaved aloe, is a species of flowering plant in the genus Aloe that is endemic to the Kingdom of Lesotho in the Drakensberg mountains. An evergreen succulent perennial, it is well known for its strikingly symmetrical, five-pointed spiral growth habit.
Aloe ballyi is a species of flowering plant in the family Asphodelaceae, native to Kenya and Tanzania.
Aloe comosa is a species of flowering plant in the Asphodelaceae family. It is commonly called Clanwilliam aloe) and is endemic to South Africa.
Gonialoe dinteri, the Namibian partridge aloe, is a species of flowering plant in the Asphodelaceae family. It is native to arid areas of Angola and Namibia.
Aloidendron pillansii, formerly Aloe pillansii, the giant quiver tree or bastard quiver tree, is a large, branching species of succulent plant indigenous to southern Africa. It is regarded as critically endangered.
Aloidendron ramosissimum, or the maiden’s quiver tree, is a species of endangered succulent flowering plant in the family Asphodelaceae found in southern Africa.
The Huntington Desert Garden is part of The Huntington Library, Art Collections and Botanical Gardens in San Marino, California. The Desert Garden is one of the world's largest and oldest collections of cacti, succulents and other desert plants, collected from throughout the world. It contains plants from extreme environments, many of which were acquired by Henry E. Huntington and William Hertrich in trips taken to several countries in North, Central and South America.
Kumara plicatilis, formerly Aloe plicatilis, the fan-aloe, is a succulent plant endemic to a few mountains in the Fynbos ecoregion, of the Western Cape in South Africa. The plant has an unusual and striking fan-like arrangement of its leaves. It may grow as a large multistemmed shrub or as a small tree. It is one of the two species in the genus Kumara.
Aloiampelos gracilis, formerly Aloe gracilis, the rocket aloe, is a succulent plant, endemic to dry thicket vegetation around the city of Port Elizabeth, South Africa. Its natural range lies just to the west of the related Aloiampelos ciliaris, and it occurs in bushy fynbos and dry thickets, and clustered on rocky outcrops at all altitudes. Its range extends westwards into the Baviaanskloof mountains.
Aloe jucunda is a species of succulent plants that belong to the family Asphodelaceae, indigenous to Somalia.
The North-West University Botanical Garden on the Potchefstroom Campus of the North-West University (NWU) is the only botanical garden in the North West Province of South Africa. The Garden spans just under three hectares and is open to the public.
Perrierosedum is a genus of succulent plant in the family Crassulaceae containing only one species, Perrierosedum madagascariense. It is a critically endangered species endemic to Madagascar.
Aloe rupestris is an arborescent aloe indigenous to summer-rainfall areas of southern Africa.
Aloe descoingsii is a species of Aloe native to southern Madagascar. Regarded as the smallest Aloe species in the world, it generally reaches a maximum of about 3 inches (7.62 cm) across. With white spotted leaves, A. descoingsii grows via offsets in clumps and sports tiny orange flowers.
Aloe haworthioides is a species of plant in the genus Aloe native to Madagascar. This aloe is named for its leaves, which are covered with soft spines that create a resemblance to Haworthia species. A small species, it grows in stemless, clumping offsets and sports orange, highly fragrant flowers.
Aloestrela is a genus of flowering plants belonging to the family Asphodelaceae. This genus is named in honour of Professor Dr Estrela Figueiredo of the Department of Botany of the Nelson Mandela University. It contains the sole species Aloestrela suzannae(Decary) Molteno & Gideon F.Sm., endemic to Madagascar. Aloestrela suzannae is an endangered species indigenous to the south of Madagascar.
Decarydendron is a genus of flowering plants belonging to the family Monimiaceae.
