Drosera subg. Lasiocephala | |
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Drosera derbyensis , a member of subgenus Lasiocephala | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Order: | Caryophyllales |
Family: | Droseraceae |
Genus: | Drosera |
Subgenus: | Drosera subg. Lasiocephala (Planch.) J.Schlauer |
Type species | |
D. petiolaris | |
Species | |
Drosera banksii Contents | |
Synonyms | |
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Drosera subg. Lasiocephala, sometimes collectively known as the petiolaris-complex, [1] is a subgenus of 14 species in the genus Drosera . These species are distinguished by their subpeltate to peltate lamina. [2]
The subgenus was first formally described by Jules Émile Planchon in 1848 as a section. [3] Planchon included the species D. banksii in his arrangement, but it has been argued that D. banksii belongs in a clade with the more-closely allied D. subtilis . [1] Ludwig Diels reclassified the genus in his 1906 monograph of the family and recognizing this taxon as a series under section Rossolis. [4] In 1996, taxonomist Jan Schlauer argued for the recognition of this taxon at the rank of subgenus, noting that these closely related species share many affinities with subgenus Drosera but are different enough to warrant subgeneric status. [2] All species in this subgenus are native to northern Australia except for D. petiolaris , which is more widely distributed to as far as New Guinea. The plants in this subgenus or petiolaris-complex mostly look like variations of the eponymous D. petiolaris. [1]
Image | Scientific name | Distribution |
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Drosera banksii R.Br. ex DC. | northern Australia (Queensland, the Northern Territory, and Western Australia) and Southeast Asia (Papua New Guinea and Western New Guinea). | |
Drosera brevicornis Lowrie | Australia(Northern Territory and Western Australia. ) | |
Drosera broomensis Lowrie | Western Australia. | |
Drosera caduca Lowrie | Western Australia. | |
Drosera darwinensis Lowrie | Northern Territory | |
Drosera derbyensis Lowrie | Western Australia. | |
Drosera dilatatopetiolaris K.Kondo | Western Australia and the Northern Territory. | |
Drosera falconeri Tsang ex K.Kondo | Northern Territory | |
Drosera fulva Planch. | Northern Territory | |
Drosera kenneallyi Lowrie | Western Australia | |
Drosera lanata K.Kondo | Northern Territory and Queensland | |
Drosera ordensis Lowrie | Western Australia | |
Drosera paradoxa Lowrie | Northern Territory and Western Australia. | |
Drosera petiolaris | Western Australia, the Northern Territory, and Queensland, and New Guinea; | |
Drosera adelae, commonly known as the lance-leaved sundew, is a carnivorous plant in the genus Drosera that is endemic to Queensland, Australia.
Drosera binata, commonly known as the forked sundew or fork-leaved sundew. It is a large, perennial sundew native to Australia and New Zealand. The specific epithet is Latin for "having pairs" - a reference to the leaves, which are dichotomously divided or forked.
Drosera monticola is a perennial carnivorous plant species in the genus Drosera, the sundews. This species is endemic to a single mountain range in Western Australia.
Drosera stolonifera, sometimes referred to as the leafy sundew, is a tuberous perennial species in the genus Drosera that is endemic to Western Australia. It produces 2 to 3 semi-erect lateral stems that grow 10 to 15 cm long. It is most closely related to D. purpurascens, but differs by several characteristics including height and petiole length. It is native to a number of swampy locations around Perth south to Pinjarra. It grows in peaty water-logged soils in swamp heathland and flowers from September to October. After a bushfire it will flower en masse.
Drosera sect. Stolonifera is a section of ten tuberous perennial species in the genus Drosera that are endemic to south-west Western Australia. The species all have a similar growth habit and all have fan-shaped leaves, but the morphological differences and lack of natural hybrids support the division of the D. stolonifera species complex.
Drosera sect. Erythrorhiza is a section of 14 species of tuberous species in the genus Drosera. It represents a natural group of all the rosetted tuberous Drosera. Most species are endemic to Western Australia, but D. aberrans, D. praefolia, D. schmutzii, and D. whittakeri are also found in eastern Australia.
Drosera andersoniana, the sturdy sundew, is an erect perennial tuberous species in the genus Drosera that is endemic to Western Australia. It produces a basal rosette of leaves similar to that of D. peltata and the stem grows to 8–25 cm (3–10 in). Its pink-white to red flowers emerge from August to September. D. andersoniana grows in loamy soils near granite outcrops.
Drosera bicolor is an erect perennial tuberous species in the genus Drosera that is endemic to Western Australia. It produces a basal rosette of leaves similar to that of D. peltata and the stem grows to 11 cm (4 in) high. Its white flowers that have a red spot near the petal base emerge from September to October. D. bicolor grows in deep silica sand on heathland along the upper Phillips River and south-east of Lake King.
Drosera erythrogyne is a scrambling or climbing perennial tuberous species in the genus Drosera that is endemic to Western Australia. It grows in soils that are peat-sand to loam and occurs in an area along the southern Western Australian coast west of Albany in swamps or near granite outcrops. It produces small leaves along a long, scrambling stem that can grow to 2–3 m (7–10 ft) long. White flowers emerge from August to October.
Drosera gigantea, the giant sundew, is an erect perennial tuberous species in the carnivorous plant genus Drosera that is endemic to Western Australia. It grows in sandy soils at the margins of swamps and near granite outcrops along the Western Australian coast from Albany north to just south of Geraldton. D. gigantea produces small shield-shaped leaves along many lateral branches that look like a small tree. Individual plants can grow up to 0.2–1 m (0.7–3.3 ft) tall. Because of its tall, tree-like form, it is considered one of the largest Drosera species. It is also easily cultivated and enjoys damp, humid conditions often provided in greenhouses. White flowers emerge from August to November. The red tubers of this species can grow to be 3.8 cm (1.5 in) in diameter and may be a metre below ground.
Drosera graniticola is an erect perennial tuberous species in the carnivorous plant genus Drosera that is endemic to Western Australia. It grows 10–20 cm (4–8 in) high near granite outcrops. White flowers emerge from August to September.
Drosera heterophylla, the swamp rainbow, is an erect perennial tuberous species in the carnivorous plant genus Drosera that is endemic to Western Australia. It grows in shallow water swamps or wet clay flats near granite outcrops and occurs in the vicinity of Perth and to its north. D. heterophylla produces small leaves along an erect stem that can be 10–30 cm (4–12 in) tall. It is the only species in the genus that produces many-petaled flowers. These white flowers emerge from June to September.
Drosera huegelii, the bold sundew, is an erect perennial tuberous species in the carnivorous plant genus Drosera that is endemic to Western Australia. It grows in sandy soils in winter-wet depressions and margins of swamps and occurs along the south-west coast of Australia. D. huegelii produces small, bell-shaped leaves along an erect stem that can be 10–50 cm (4–20 in) tall. White to cream-coloured flowers emerge from June to September.
Drosera intricata is a scrambling or climbing perennial tuberous species in the carnivorous plant genus Drosera that is endemic to Western Australia. It grows in clay-sand soils on swamp margins, or other habitats that are seasonally wet. D. intricata produces small carnivorous leaves along a glabrous stem that can be 25–40 cm (10–16 in) tall. Its 3-12 yellow flowers emerge from September to October. It gains its species name, intricata, from its twining or winding habit.
Drosera glanduligera, commonly known as the pimpernel sundew or scarlet sundew, is a species of carnivorous plant endemic to southern Australia. It is an ephemeral annual plant that grows in the winter and flowers from August to November.
Drosera falconeri is a carnivorous plant in the family of Droseraceae. It is endemic to the Northern Territory of Australia.
Drosera lanata is a carnivorous plant in the genus Drosera and is endemic to the Northern Territory and Queensland in Australia. Its leaves are arranged in a compact basal rosette. Narrow linear petioles less than 2 mm wide emerge from the center of the rosette and hold carnivorous leaves at the end. Both petioles and the center of the rosette are densely covered in silvery dendritic hairs. These dendritic hairs afford the plant insulation and allow it to trap morning dew for additional moisture during the dry season. The leaf lamina is maroon-red and 2 mm long by 2.5 mm wide.
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.
Drosera trinervia is a species in the carnivorous plant genus Drosera that is endemic to the Cape Provinces of South Africa. It was first described by Kurt Polycarp Joachim Sprengel in his 1820 work Neue Entdeckungen im ganzen Umfang der Pflanzenkunde.
Andreas Fleischmann is a German botanist specialising in carnivorous plants, particularly Droseraceae and Lentibulariaceae. He has (co-)published at least 46 new taxa including 14 species of Drosera (sundews), 7 species of Genlisea, 8 species of Heliamphora and 3 species of Pinguicula (butterworts).