| Lithops optica | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Aizoaceae |
| Genus: | Lithops |
| Species: | L. optica |
| Binomial name | |
| Lithops optica | |
Lithops optica is a species of plant in the family Aizoaceae, endemic to Namibia.
The name "optica" means "eye-like" and refers to the rounded windows at the top of the leaves. In habitat, these two leaves emerge just above the surface of the ground.
The well-known and widely cultivated "rubra" variety is a bright purple/red colour. While most specimens of Lithops optica do not have this colour, the "rubra" variety is by far the most commonly cultivated.
This species occurs in the coastal areas around Lüderitz, Namibia. This is a very arid "mist-belt" area, with winter rainfall but extremely dry conditions. It is therefore one of the few species of Lithops which is adapted to a winter rainfall climate. Its natural habitat is sandy soil in rocky areas. It is threatened by habitat loss.
Like all Lithops, it requires extremely well-drained soil. Like all Lithops it also grows in annual cycles, as the leaf-pairs flower, and then each produces a new leaf-pair that replaces the old one (which shrivels away). The principal rule of watering is that Lithops should be kept dry from when they finish flowering, up until the old leaf-pairs are fully replaced.
Alnus rubra, the red alder, is a deciduous broadleaf tree native to western North America.
Lithops is a genus of succulent plants in the ice plant family, Aizoaceae. Members of the genus are native to southern Africa. The name is derived from the Ancient Greek words λίθος 'stone' and ὄψ 'face', referring to the stone-like appearance of the plants. They avoid being eaten by blending in with surrounding rocks and are often known as pebble plants or living stones. Lithops is both the genus name and the common name. The formation of the name from the Ancient Greek -ops means that even a single plant is called a Lithops.
Morus rubra, commonly known as the red mulberry, is a species of mulberry native to eastern and central North America. It is found from Ontario, Minnesota, and Vermont south to southern Florida, and west as far as southeastern South Dakota, Nebraska, Kansas, and central Texas. There have been reports of isolated populations in New Mexico, Idaho, and British Columbia.
Aloidendron dichotomum, formerly Aloe dichotoma, the quiver tree or kokerboom, is a tall, branching species of succulent plant, indigenous to Southern Africa, specifically in the Northern Cape province of South Africa, and parts of Southern Namibia.
Gonialoe variegata, also known as tiger aloe and partridge-breasted aloe, is a species of flowering plant in the family Asphodelaceae. It is an evergreen succulent perennial indigenous to South Africa and Namibia. It is common in cultivation.
Haemanthus is a Southern African genus of flowering plants in the family Amaryllidaceae, subfamily Amaryllidoideae. Members of the genus are known as blood lily and paintbrush lily. There are some 22 known species, native to South Africa, Botswana, Namibia, Lesotho and Eswatini. About 15 species occur in the winter rainfall region of Namaqualand and the Western Cape, the remainder being found in the summer rainfall region, with one species Haemanthus albiflos occurring in both regions.
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.
Frithia pulchra, the fairy elephant's feet, is a species of flowering plant in the fig‑marigold family Aizoaceae, endemic to Gauteng Province, South Africa. Its natural habitat is temperate grassland with high summer rainfall. A tiny stemless succulent growing to just 10 cm (3.9 in) tall and 20 cm (7.9 in) broad, it has bulbous oblong leaves with leaf windows at the tip; and magenta and white daisy-like flowers in winter. During periods of drought it has the ability to shrink beneath the soil surface, thus avoiding excessive desiccation, but making it extremely difficult to find.
Plumeria rubra is a deciduous plant species belonging to the genus Plumeria. Originally native to Mexico, Central America, Colombia and Venezuela, it has been widely cultivated in subtropical and tropical climates worldwide and is a popular garden and park plant, as well as being used in temples and cemeteries. It grows as a spreading tree to 7–8 m (23–26 ft) high and wide, and is flushed with fragrant flowers of shades of pink, white and yellow over the summer and autumn.
Bismarckia is a monotypic genus of flowering plant in the palm family endemic to western and northern Madagascar, where it grows in open grassland.
Lithops aucampiae is a species of flowering plant in the family Aizoaceae, found in South Africa. it was named after Juanita Aucamp, who found a specimen on her father's farm in Postmasburg, Northern Cape in 1929.
Lithops salicola is a species of perennial plant in the family Aizoaceae, often called living stones, because of its resemblance to round grey pebbles.
Lithops francisci, commonly known as one of the living stones or pebble plants, is in the family Aizoaceae. It is endemic to the arid desert environments of Namibia. It is a succulent with a natural habitat in rocky areas. L. francisci was assessed by Nicholas Edward Brown in 1925. It is one of the Lithops plants and shares the characteristic bi-leaf head pattern separated by a deep fissure, the bottom of which houses and protects the stunted stem.
Lithops karasmontana, is a species of flowering plant in the ice plant family Aizoaceae, native to Namibia and South Africa.
Lithops lesliei is a species of plant in the family Aizoaceae. The plant is collected for its medicinal properties, and has therefore become threatened.
Lapidaria is a monotypic genus of dwarf succulent plants in the family Aizoaceae. The only species it contains is Lapidaria margaretae, also known as the Karoo rose.
Lithops localis is a species of plant in the family Aizoaceae, indigenous to South Africa.
Lithops comptonii is a species of plant in the family Aizoaceae, indigenous to South Africa.
Conophytum calculus is a small South African species of succulent plant in the family Aizoaceae.
Conophytum burgeri is a small, endangered, South African species of succulent plant, of the genus Conophytum.
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