| Astroloba rubriflora | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Asphodelaceae |
| Subfamily: | Asphodeloideae |
| Genus: | Astroloba |
| Species: | A. rubriflora |
| Binomial name | |
| Astroloba rubriflora | |
| Synonyms [1] | |
| |
Astroloba rubriflora is a succulent plant found in the mountainous Karoo area around Robertson, South Africa. It is listed as a Vulnerable species on the IUCN global Red List. [2]
It was formerly grouped by some authorities (L.Bolus) as the only species in a separate monotypic genus, Poellnitzia (named after the botanist Joseph Karl von Poellnitz), on account of its unusual flowers. Its species name, rubriflora ("red-flowered"), refers to the peculiarly-formed red flowers, which have green tips. The species has also at various times been placed in the genera Aloe , Apicra and Haworthia . [3]
This is one of the most unusual of the species in its genus. Its flowers are unlike those of its close relatives in the Astroloba and Haworthia genera, and more similar to those of Aloes. They are evolved to be pollinated by sunbirds. The long thin inflorescence has a horizontal raceme and red flowers with green tips, that all twist into an erect position. The flowers appear from December to April.
Its multiple sprawling stems (to 45 cm) are densely covered in sharply-pointed waxy blue-green leaves (that nonetheless go brownish on exposure to harsh sun). [4] [5]
It is indigenous to the Robertson Karoo vegetation type - a succulent rich, semi-arid, winter rainfall type of Karoo vegetation of the Western Cape, South Africa, named after the town of Robertson.
Specifically it occurs roughly between the towns of Robertson, McGregor and Bonnievale. [6]
In its natural habitat it tends to grow sheltered underneath bushes and shrubs, often on low hills and slopes. It grows in light shade or full shade and has clumping caulescent rosettes, up to 3 inches (76 mm) across, leaves 0.8–1.6 in (20–41 mm) long, 0.8 in (20 mm) wide and 0.2 in (5.1 mm) thick. It grows during the winter and propagates via seed or cuttings.
Asphodeloideae is a subfamily of the monocot family Asphodelaceae in the order Asparagales. It has previously been treated as a separate family, Asphodelaceae sensu stricto. The family Asphodelaceae has now been proposed to be a nomen conservandum, and the proposal has been recommended for ratification in 2017. In that case, Asphodelaceae will have priority over Xanthorrhoeaceae. This is reflected in the APG IV family lists.
Aristaloe is a genus of evergreen flowering perennial plants in the family Asphodelaceae from Southern Africa. Its sole species is Aristaloe aristata, known as guinea-fowl aloe or lace aloe.
Haworthia is a large genus of small succulent plants endemic to Southern Africa (Mozambique, Namibia, Lesotho, Eswatini and South Africa).
Aloe perfoliata, the rubble aloe or mitre aloe, is a hardy creeping aloe, found in rocky, mountainous areas throughout the Western Cape, South Africa.
Haworthia truncata, locally known as horse's teeth, is a species of succulent plant in the genus Haworthia. It is found in the Little Karoo region, in the far east of the Western Cape Province, South Africa.
The Karoo Desert National Botanical Garden is a botanical garden focused on succulents and other plants of arid regions, that lies at the foot of the Hex River Mountains range, in the town of Worcester, South Africa.
Astroloba is a genus of flowering plants in the family Asphodelaceae, subfamily Asphodeloideae, native to the Cape Province of South Africa.
Tulista is a small genus of succulent plants endemic to the Cape Provinces of South Africa. They were formerly included within the genus Haworthia.
Astroloba bullulata is a small succulent plant of the Astroloba genus, endemic to mountainous areas of the southern Cape, South Africa.
Astroloba corrugata is a small succulent plant of the Astroloba genus, endemic to the Little Karoo and the far south of the Western Cape, South Africa.
Astroloba spiralis is a small succulent plant of the Astroloba genus, endemic to the southern Karoo regions of the Western and Eastern Cape Provinces, South Africa.
Astroloba herrei is a small succulent plant of the genus Astroloba, restricted to the area around the Swartberg mountains, South Africa.
Astroloba congesta is a small succulent plant of the Astroloba genus, indigenous to the Eastern Cape, South Africa.
Astroloba foliolosa is a small succulent plant of the genus Astroloba widespread in the arid parts of the Eastern Cape Province, South Africa.
Robertson Karoo is a semi-arid vegetation type, restricted to sections of the Breede River Valley, Western Cape Province, South Africa. It is a subtype of Succulent Karoo and is characterised by the dominance of succulent plant species, and by several endemic plants and animals.
Haworthiopsis pungens, formerly Haworthia pungens, is a species of flowering succulent plant from the Eastern Cape Province, South Africa.
Haworthiopsis viscosa, formerly Haworthia viscosa, is a species of flowering succulent plant from the Western and Eastern Cape Provinces, South Africa.
Tulista pumila ("Vratjiesaalwee") is a species of Tulista succulent plant, from the Western Cape, South Africa.
Tulista kingiana is a species of succulent plant, from the Western Cape, South Africa. It is listed as Endangered on the IUCN global Red List.
Aloeae is a tribe of succulent plants in the subfamily Asphodeloideae of the family Asphodelaceae, consisting of the aloes and their close relatives. The taxon may also be treated as the subfamily Alooideae by those botanists who retain the narrower circumscription of Asphodelaceae adopted prior to the APG III system. Typically, plants have rosettes of more or less succulent leaves, with or without a distinct stem. Their flowers are arranged in racemes and tend to be either small and pale, pollinated by insects, or larger and more brightly coloured, pollinated by birds. As of 2017, 11 genera are recognized, most created since 2010 by splitting off another five genera from Aloe and another two from Haworthia. Only two genera, Aloe and Aloidendron, are native outside southern Africa, extending northwards to the Arabian Peninsula. Seven genera are restricted to South Africa, some with small ranges. Members of the Aloeae are cultivated by succulent plant enthusiasts; Aloe species especially are used in temperate climates as ornamental garden plants. Some species are used in traditional medicine. Aloe vera and Aloe ferox are cultivated for their extracts, whose uses include moisturizers and emollients in cosmetics.
