Droseraceae is a family of carnivorous flowering plants, also known as the sundew family. It consists of approximately 180 species in three extant genera. Representatives of the Droseraceae are found on all continents except Antarctica.
Drosophyllum is a genus of carnivorous plants containing the single species Drosophyllum lusitanicum, commonly known as Portuguese sundew or dewy pine. In appearance, it is similar to the related genus Drosera, and to the much more distantly related Byblis.
Drosera regia, commonly known as the king sundew, is a carnivorous plant in the sundew genus Drosera that is endemic to a single valley in South Africa. The genus name Drosera comes from the Greek word droseros, meaning "dew-covered". The specific epithet regia is derived from the Latin for "royal", a reference to the "striking appearance" of the species. Individual leaves can reach 70 cm (28 in) in length. It has many unusual relict characteristics not found in most other Drosera species, including woody rhizomes, operculate pollen, and the lack of circinate vernation in scape growth. All of these factors, combined with molecular data from phylogenetic analysis, contribute to the evidence that D. regia possesses some of the most ancient characteristics within the genus. Some of these are shared with the related Venus flytrap (Dionaea muscipula), which suggests a close evolutionary relationship.
Drosera yutajensis is a rare species in the carnivorous plant genus Drosera. It is endemic to Venezuela in the Valley of Rio Coro-Coro and grows in moist, sandstone outcrops near sources of water at elevations from 600–1,800 metres (1,970–5,910 ft). This species was first collected in 1987 but was not formally described until Rodrigo Duno de Stefano and Alastair Culham published it in a 1995 volume of Novon. Drosera yutajensis is closely related to D. villosa and D. arenicola.
Drosera broomensis is a small, perennial carnivorous plant in the genus Drosera that is endemic to Western Australia.
Drosera indica is an insectivorous plant, a sundew native to tropical countries throughout the world, from Asia to Africa, but absent from the neotropics. Together with Australian endemic species D. aquatica, D. aurantiaca, D. barrettorum, D. cucullata, D. finlaysoniana, D. fragrans, D. glabriscapa, D. hartmeyerorum, D. nana, D. serpens it makes up the section Arachnopus.
Drosera erythrorhiza, the red ink sundew, is a perennial tuberous species in the carnivorous plant genus Drosera that is endemic to Western Australia. It grows in a rosette and is distinguished from the other species in section Erythrorhiza by its many-flowered cymose inflorescences with up to 50 individual flowers. D. erythrorhiza was first described by John Lindley in his 1839 publication A sketch of the vegetation of the Swan River Colony. In 1992, N. G. Marchant and Allen Lowrie described three new subspecies, thus also creating the autonym D. erythrorhiza subsp. erythrorhiza. The subspecies were separated from this variable species mostly by leaf morphology and distribution.
Drosera macrantha, the bridal rainbow, is a scrambling or climbing perennial tuberous species in the carnivorous plant genus Drosera that is endemic to Western Australia. It grows in a variety of habitats, including winter-wet depressions in sandy, loamy, laterite, or quartzite soils. D. macrantha produces small, cup-shaped carnivorous leaves along a long stem that can be 0.16–1.5 m (0.5–4.9 ft) high as it climbs. Its 1 in (2.5 cm) white or pink flowers emerge from June to November, blooming earlier in the more northern range.
Drosera stricticaulis, the erect sundew, is an erect perennial tuberous species in the carnivorous plant genus Drosera. It is endemic to Western Australia and is found near watercourses and granite outcrops in sandy clay or loam. D. stricticaulis produces small, cup-shaped carnivorous leaves along green, glandular stems that can be 25 cm (10 in) high. Pink flowers bloom from July to October.
Drosera sulphurea, the sulphur-flowered sundew, is a scrambling perennial tuberous species in the carnivorous plant genus Drosera. It is endemic to Western Australia and is found in coastal areas in sandy loam, often among Cephalotus. D. sulphurea produces small, shield-shaped carnivorous leaves along stems that can be 40–60 cm (16–24 in) high. Yellow flowers bloom in September.
Drosera sessilifolia is a species in the carnivorous plant genus Drosera that is native to Brazil, Guyana, and Venezuela and grows in sandy or gravelly soils in seasonal seepages where a thin film of water collects. It produces a rosette of small, wedge-shaped to round carnivorous leaves that are usually yellowish but become redder with age. Inflorescences produce pink-lilac flowers. It has a diploid chromosome number of 2n = 20.
Drosera subg. Thelocalyx is a subgenus of two species in the genus Drosera.
Drosera hamiltonii, the rosy sundew, is a small, compact species in the carnivorous plant genus Drosera and is the only species in the monotypic subgenus Stelogyne. The glandular leaves are about 2 cm (0.8 in) long and arranged in a rosette. In November and December, pink flowers on 30 cm (12 in) tall scapes bloom. It is endemic to coastal swamps in south-west Western Australia. It was first described by Cecil Rollo Payton Andrews in 1903 and placed in section Stelogyne as the only species by Ludwig Diels in 1906. In 1994, Rüdiger Seine and Wilhelm Barthlott suggested D. hamiltonii belonged in their section Drosera, reducing section Stelogyne to synonymy with section Drosera. In 1996, Jan Schlauer revised the genus classification and elevated section Stelogyne to a subgenus, arguing that the unique fused styles requires segregation at more than a sectional rank.
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 tomentosa is a species in the carnivorous plant genus Drosera that is endemic to Brazil. It was originally described in 1824 by Augustin Saint-Hilaire. In 1906, Ludwig Diels reduced the species to a variety of D. montana. Diels' taxonomic rank for the species is still supported by some.
Drosera meristocaulis is a perennial species in the carnivorous plant genus Drosera, the only member of the subgenus Meristocaulis. It is a small, rosette- and branched stem-forming sundew that has many morphological affinities to the Australian pygmy sundews. D. meristocaulis is wholly endemic to Pico da Neblina, an isolated mountain on the Brazil-Venezuela border.
Drosera dilatato-petiolaris is a carnivorous plant in the genus Drosera and is endemic to Australia, being found in both Western Australia and the Northern Territory. Its leaves are arranged in a rosette and commonly produces plantlets, eventually forming large clumps that can be over 1 ft (0.3 m) across. Green petioles emerging from the center of the rosette are typically 3–5 mm wide, but can vary. Red carnivorous leaves at the end of the petioles are small and round, with most resting on the soil surface. Inflorescences are 18 cm (7 in) long with white flowers being produced from April to May. It has a diploid chromosome number of 2n = 12.
Drosera viridis is a semi-erect or rosetted perennial species in the carnivorous plant genus Drosera. It is known only from Brazil, being found in eastern Paraná and São Paulo and central Santa Catarina at elevations from 550–1,100 m (1,800–3,610 ft). It may, however, also be found in adjacent Argentina, Paraguay, and Uruguay. It typically grows in waterlogged habitats among grasses in white-clayey, reddish lateritic, or humus-rich black-brown soils and is sometimes found submerged with only the leaves above water.
Drosera quartzicola is a species in the carnivorous plant genus Drosera and is endemic to the Serra do Cipó in central Minas Gerais state in southeastern Brazil. It is perennial plant that produces leaves, 0.7–4 cm (0.3–1.6 in) long, in a rosette that is sometimes on a short stem about 4 cm (1.6 in) tall. It is found growing in campo rupestre vegetation along with D. tentaculata and D. chrysolepis. It is typically found growing in silica sands surrounded by white quartz gravel, which is the origin of the specific epithet quartzicola. Drosera quartzicola grows in drier habitats than other Drosera species and flowers earlier in the wet season from January to February. It superficially resembles D. schwackei, but it is more closely related to D. camporupestris, D. graminifolia, and D. chrysolepis.
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.
