| Aloe rauhii | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Asphodelaceae |
| Subfamily: | Asphodeloideae |
| Genus: | Aloe |
| Species: | A. rauhii |
| Binomial name | |
| Aloe rauhii | |
| Synonyms | |
Aloe rauhii (common name snowflake aloe) is a rare succulent and highly drought-resistant plant endemic to Madagascar. It is named after Professor Werner Rauh, who was a professor of Botany at the University of Heidelberg in Germany. [4] [5]
Aloe rauhii are less than 6 inches (15 cm) high. Leaf rosettes are approximately 5 inches (12 cm) in diameter. The leaves have characteristic heavily white oval spots with tiny white marginal teeth, the overall appearance of which may resemble snowflakes. Plant propagates via clumping. In full sunlight, the green and white leaves become a purplish orange color. [6] [5]
Madagascar is recognized as one of the most ecologically rich countries in the world, and over 80% of its flora is endemic. However, the diverse plant life is under threat and some species are on the verge of extinction. The flora of Madagascar is unique due to the island's separation from the African continent over 160 million years ago, a possible explanation for A. rauhii being an endemic species. [4] [7]
Calamagrostis purpurascens, is a perennial grass commonly known as purple reedgrass, purple pinegrass, or alpine reedgrass. It grows 30 to 80 centimetres (31 in) tall.
Eliea is a genus of flowering plants, shrubs or small trees, in the St. Johnswort family, Hypericaceae. It comprises a single species, Eliea articulata, which is endemic to Madagascar.
Ulmus uyematsuiHayata, commonly known as the Alishan elm, is endemic to forests at elevations of 800–2,500 metres (2,600–8,200 ft) in Alishan, Chiayi County, central Taiwan, where it is considered one of the minor tree species. The tree was first named and described by the Japanese botanist Bunzō Hayata in 1913, in the aftermath of the First Sino-Japanese War, when the Republic of Formosa was ceded to Japan.
Justicia flaviflora is a species of herbaceous plant in the family Acanthaceae. It was previously classified as Beloperone flaviflora. The species is endemic to the island of Trinidad in the Caribbean republic of Trinidad and Tobago where it is only known from near the peaks of mountains in the Northern Range. It is an erect herb with leaves up to 27 cm (11 in) long. It is suffering from habitat degradation and has become increasingly rare, being now rated as "critically endangered".
Ribes divaricatum is a species in the genus Ribes found in the forests, woodlands, and coastal scrub of western North America from British Columbia to California. The three accepted varieties have various common names which include the word "gooseberry". Other common names include coast black gooseberry, wild gooseberry, Worcesterberry, or spreading-branched gooseberry.
Aloe capitata is a species of flowering plant in the Asphodelaceae family. It is native to Madagascar.
Symphyotrichum depauperatum, commonly known as serpentine aster or starved aster, is a rare species in the family Asteraceae adapted to serpentine barrens, an ecosystem with a high concentration of toxic metals in the soil. It has been found in Pennsylvania, Maryland, and on some diabase glades in North Carolina. It grows to 50 centimeters and has white ray florets surrounding a center of yellow disk florets.
Aloe albida is a dwarf species of succulent plant.
Ribes amarum is a species of currant known by the common name bitter gooseberry. It is endemic to California, where it is known from mountains, foothills, and canyons. Its habitat includes Chaparral.
Ribes inerme is a species of currant known by the common names whitestem gooseberry and white stemmed gooseberry. It is native to western North America from British Columbia to California and westward to the Rocky Mountains. It grows in mountain forests, woodlands, and meadows.
Ribes lasianthum is a species of currant known by the common names alpine gooseberry and woolly-flowered gooseberry. It is native to California, where it can be found in the San Gabriel Mountains and the Sierra Nevada, its distribution extending just into Nevada.
Ribes velutinum is a species of currant known by the common name desert gooseberry.
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.
Aloe albiflora is a species of aloe indigenous to Madagascar with narrow, muricate leaves and widely campanulate, snow-white flowers that are 10mm long and 14mm across the mouth. Its nearest affinity, based on leaf characters only, is Aloe bellatula.
Aloe buettneri is a species of succulent plant in the family Asphodelaceae. It is found in West Africa and is known for its medicinal uses.
Drosera zeyheri is a species in the carnivorous plant genus Drosera that is endemic to the Cape Provinces of South Africa. Some botanists treat this species to be a form of D. cistiflora. It differs from typical D. cistiflora specimens by being smaller, sometimes having cauline leaves on the short stems with white, pink, or red flowers. Botanist Fernando Rivadavia has said that he believes of all the forms and varieties in the D. cistiflora complex, D. zeyheri could possibly merit distinction at the species rank. He found it easy to distinguish it from D. cistiflora by its mostly stemless habit, though it often does present one to three leaves on the flower scape. Drosera zeyheri was first described by Terence Macleane Salter in a 1940 volume of the Journal of South African Botany.
Iris hellenica is a plant species in the genus Iris and the subgenus Iris. It is a rhizomatous perennial, from Saitas Mountain, in the Peloponnese Region of Greece. It has grey-green, sickle-shaped leaves, a tall slender stem, 2–3 white, lavender-blue, lilac or purple flowers and orange/purple beards. It was thought once to be a hybrid species of Iris germanica which also grows in the same area, before being separated into 2 species. It has only recently been published and is rarely cultivated as an ornamental plant in temperate regions.
Androsace americana, synonym Douglasia arctica, known as the Mackenzie River dwarf primrose, is a species of flowering plant in the primrose family, Primulaceae. It is native to subarctic North America.
Sanrobertia is a genus of flowering plants within the subtribe Symphyotrichinae of the family Asteraceae. It is monotypic, meaning there is only one species within the genus. Sanrobertia gypsophila is a rare endemic known only from Nuevo León, Mexico.
Aniseia martinicensis is a species of herb climber in the Convolvulaceae family. Native to subtropical and tropical America, it has been introduced to the tropics and sub-tropics of the Pacific Islands, Australia, Asia, and Africa. It is usually eaten as a supplementary vegetable. Even though it grows around the world, in a variety of habitats, it is a rare plant.
Notes: Madag. Illus
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