| Stylidium leptorrhizum | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Asterales |
| Family: | Stylidiaceae |
| Genus: | Stylidium |
| Subgenus: | Stylidium subg. Tolypangium |
| Section: | Stylidium sect. Debilia |
| Species: | S. leptorrhizum |
| Binomial name | |
| Stylidium leptorrhizum F.Muell. 1859 | |
| Synonyms | |
Stylidium leptorrhizum is a species of dicotyledonous plant in the family Stylidiaceae.
It is an herbaceous annual plant that grows from 8 to 25 cm tall. Oblanceolate or elliptical leaves, about 10-20 per plant, form a basal rosette with stems absent. The leaves are generally 14–60 mm long and 3–9.5 mm wide. This species produces 1-3 scapes per plant. Inflorescences are 8–25 cm long and produce pink or mauve flowers that bloom from May to August in their native range.
S. leptorrhizum is endemic to the Kimberley region of Western Australia and the Victoria River district of the Northern Territory. Its typical habitat has been reported as sandy soils along creeks or billabongs.
S. leptorrhizum is most closely related to S. multiscapum . When reviewing section Debilia, Anthony Bean reduced the recently described S. barrettorum to synonymy with S. leptorrhizum after examining the type specimen. [1]
Stylidium tenellum is a dicotyledonous plant that belongs to the genus Stylidium. It is an annual plant that grows from 5 to 27 cm tall. The obovate or elliptical leaves, about 6-14 per plant, are scattered along the elongate, glabrous stem and are generally 3.5-8.5 mm long and 0.8-2.5 mm wide. Scapes are absent. Inflorescences are 2–8 cm long and produce white, pink, or mauve flowers that bloom from September to December in their native range. S. tenellum is endemic to Southeast Asia and its distribution ranges from southern India to southern China and south to Sumatra. In China it's known from Guangdong, Yunnan, and southern Fujian provinces. Its habitat is recorded as being seasonal swamps and is often reported to grow near rice paddies. It is usually found growing at low altitudes but has been recorded from elevations as high as 1100 metres on Sumatra. S. tenellum is most closely related to S. diffusum.
Stylidium debile, commonly known as the frail triggerplant, is a carnivorous, dicotyledonous plant that belongs to the genus Stylidium. S. debile is endemic to coastal areas in Queensland and New South Wales, Australia.
Stylidium stenophyllum is a dicotyledonous plant that belongs to the genus Stylidium that was described by A.R. Bean in 2000. It is an erect annual plant that grows from 30 to 40 cm tall. Linear leaves, about 7-25 per plant, are scattered along the stems. The leaves are generally 36–86 mm long and 1.5-2.5 mm wide. This species generally has three to four scapes and cymose inflorescences that are 28–39 cm long. Flowers are white or pink. S. stenophyllum is endemic to the far northeastern Northern Territory of Australia and is only known from the type location. It has only been recorded from one sandstone monolith known as a beehive formation where less than 100 clumps of plants survive at the concentration of about 10 individual plants per clump. For this reason, A.R. Bean suggested a vulnerable conservation status. However it currently appears on neither the IUCN Red List nor the EPBC Act list of threatened flora.
Stylidium inconspicuum is a dicotyledonous plant that belongs to the genus Stylidium. It is an annual plant that grows from 5 to 20 cm tall. Obovate or elliptical leaves, about 5-30 per plant, are scattered along the elongate, glabrous stem. The leaves are generally 4–8 mm long and 2–5 mm wide. Petioles and scapes are absent. Inflorescences are 5–8 cm long and produce pink or red flowers. S. inconspicuum is endemic to Java and is one of the few Stylidium species that are not native to Australia. Its habitat is recorded as being moist areas in grass-dominated fields at an altitude of 20–30 metres.
Stylidium longissimum is a dicotyledonous plant that belongs to the genus Stylidium. The specific epithet is from the Latin longissimus, which means "very long" and refers to this species' long capsules that can be up to 15 mm long excluding the sepals. The capsules may be the longest in the genus.
Stylidium prophyllum is a dicotyledonous plant that belongs to the genus Stylidium. It is an annual plant that grows from 8 to 30 cm tall. The deltate leaves, about 4-10 per plant, are scattered along the elongate, glabrous stem and are generally 0.7-1.5 mm long and 0.3-0.6 mm wide. Petioles and scapes are absent. Inflorescences are 3–14 cm long and produce pink flowers that bloom from February to June in the southern hemisphere. S. prophyllum is endemic to the area in and around the Kimberley region in Western Australia. Its habitat is recorded as being "grassy floodplains, seepage areas, and waterways." S. prophyllum is most closely related to S. fissilobum but differs mostly in its glabrous sepals.
Stylidium pedunculatum is a dicotyledonous plant that belongs to the genus Stylidium. It is an annual plant that grows from 5 to 10 cm tall. The linear or deltate leaves, about 20-200 per plant, are mostly in terminal rosettes but with some scattered along the elongate stem. The leaves are generally 4.5-8.5 mm long and 0.5-0.8 mm wide. Petioles are absent. This species produces 2-14 scapes per plant. Inflorescences are 4–7 cm long and produces a single white or pink flower that blooms from March to September in the southern hemisphere. S. pedunculatum's distribution is scattered in the tropical areas of Queensland and the Northern Territory and isolated in the Aru Islands. Its habitat is recorded as being damp, sandy soils in open Melaleuca viridiflora communities. It's been found in association with Drosera, Schoenus, and Utricularia species. S. pedunculatum is most closely associated with S. ericksoniae. Its conservation status has been assessed as data deficient.
Stylidium perizostera is a dicotyledonous plant that belongs to the genus Stylidium. It is an annual plant that grows from 5 to 11 cm tall. The linear leaves, about 8–12 per plant, are mostly in terminal rosettes but with some scattered along the elongate, glabrous stem. The leaves are around 7.5 mm long and 0.4-0.7 mm wide. Petioles are absent. This species produces 1-10 scapes per plant. Inflorescences are around 9 cm long and produce a single white, yellow, and orange flower. S. perizostera is endemic to the Kimberley region in Western Australia and ranges from the Mitchell Plateau to Bigge Island. Its habitat is recorded as being near sandstone outcrops in drainage lines.
Stylidium trichopodum is a dicotyledonous plant that belongs to the genus Stylidium. It is an annual plant that grows from 6 to 20 cm tall. The linear leaves, about 20-200 per plant, are scattered along the elongate, glabrous stems. The leaves are generally 3–9 mm long and 0.2-0.7 mm wide. Petioles are absent. This species produces 1-10 scapes per plant. Inflorescences are 2.6–6 cm long and produce a single yellow or orange flower that blooms in June and July in the southern hemisphere. S. trichopodum is endemic to northern Queensland and is only known from a few populations. Its habitat is recorded as being moist sandy soils on flat or gently sloping terrain, sometimes in areas dominated by Melaleuca species. S. trichopodum is most closely related to S. pedunculatum, though it differs by its much larger flower and its cauline leaves instead of terminal rosettes for S. pedunculatum.
Stylidium section Debilia is a taxonomic rank under Stylidium subgenus Tolypangium. In his 1908 monograph on the family Stylidiaceae, Johannes Mildbraed had established this section as Debiles. In 1999, A.R. Bean published a taxonomic revision of several sections in subgenus Tolypangium in which he renamed the section from Debiles to Debilia.
Stylidium austrocapense is a dicotyledonous plant in the family Stylidiaceae. The specific epithet austrocapense refers to this species' native range on the southern part of Cape York Peninsula in Australia. It is an herbaceous annual plant that grows from 9 to 18 cm tall. Oblanceolate or elliptical leaves, about 4-40 per plant, form a basal rosette with stems absent. The leaves are generally 7.5–31 mm long and 2–10 mm wide. This species produces 1-10 scapes per plant that are glandular-hairy. Inflorescences are 9–18 cm long and produce pink or red flowers that bloom from April to July in their native range. S. austrocapense is endemic to the Cape York Peninsula in Queensland, Australia. Its typical habitat has been reported as coarse white sandy soils on low hills or intermittent watercourses. Dominant vegetation in association with its habitat include Eucalyptus tetrodonta, E. clarksoniana, Melaleuca viridiflora, M. nervosa, and Xanthorrhoea johnsonii. S. austrocapense is most closely related to S. multiscapum, but differs by the shorter leaves and absent paracorolla. Its conservation status has been assessed as secure.
Stylidium floribundum is a dicotyledonous plant that belongs to the genus Stylidium. S. floribundum's distribution ranges from the Kimberley region of Western Australia across northern Australia to northwestern Queensland.
Stylidium inaequipetalum, the Ayers Rock triggerplant, is a small herbaceous perennial plant in the genus Stylidium. It grows from 7 to 40 cm tall. Oblanceolate leaves, about 20-100 per plant, form a basal rosette with stems absent. The leaves are generally 15–81 mm long and 2–8 mm wide. This species produces 1-11 scapes per plant. Inflorescences are 7–40 cm long and produce pink flowers with petals all free and blooms almost year-round in their native range. S. inaequipetalum is endemic to the southwestern Northern Territory and Western Australia. Its typical habitat has been reported as sandy soils on sheltered creekbanks or in between rocks. S. inaequipetalum is most closely related to S. floribundum, though it is also closely allied with S. debile.
Stylidium multiscapum is a dicotyledonous plant that belongs to the genus Stylidium. It is an herbaceous annual plant that grows from 10 to 20 cm tall. Oblanceolate leaves, about 8-100 per plant, form a basal rosette with stems absent.
Stylidium ornatum is a dicotyledonous plant that belongs to the genus Stylidium. It is an herbaceous annual or perennial that grows from 10 to 30 cm tall. Oblanceolate leaves, about 5-25 per plant, form either a basal rosette with stems absent or in terminal rosettes when plant stems are present. The leaves are generally 13–37 mm long and 3–10 mm wide. This species produces 1-4 scapes per plant. Inflorescences are 12–30 cm long and produce pink flowers that bloom all year in their native range. S. ornatum is endemic to Queensland and New South Wales. Its typical habitat has been reported as sandy soils in heathland or "wallum" on waterlogged coastal sands. S. ornatum is closely related to S. debile. Its conservation status has been assessed as secure.
Stylidium paniculatum is a dicotyledonous plant that belongs to the genus Stylidium. It is an herbaceous annual that grows from 10 to 35 cm tall. Oblanceolate or obovate leaves, about 6-30 per plant, form either a basal rosette with stems absent or in terminal rosettes when plant stems are present. The leaves are generally 10–31 mm long and 3–9 mm wide. This species produces one scape per plant. Inflorescences are 10–25 cm long and produce pink flowers that bloom from November to April in their native range. S. paniculatum is endemic to eastern Australia from Dalveen, Queensland to Tenterfield, New South Wales at elevations of 800 to 1000 metres. Its typical habitat has been reported as moist sandy soils on granite substrates along creeks, drains, or low-lying flats. S. paniculatum is closely related to S. debile and was originally described as a variety of S. debile, but raised to the species level by Anthony Bean in 1999. It differs from S. debile by the lack of bracteoles and its paniculate inflorescence. Its conservation status has been assessed as data deficient.
Stylidium semipartitum is a dicotyledonous plant that belongs to the genus Stylidium. It is an herbaceous annual or perennial that grows from 9 to 40 cm tall. Oblanceolate, elliptical, or obovate leaves, about 10-30 per plant, form a terminal rosette with stems present and glandular-hairy. The glandular-hairy leaves are generally 11–68 mm long and 3–21 mm wide. This species produces 1-18 scapes per plant. Inflorescences are 8–30 cm long and produce pink, mauve, or red flowers that bloom from March to August in their native range. S. semipartitum is endemic to the Kimberley region of Western Australia and northern parts of the Northern Territory. Its typical habitat has been reported as either damp sandy soils in eucalypt woodlands, near creeks in the company of Melaleuca species or on sandstone plateaux with Triodia species. S. semipartitum is distinct within section Debilia because it possesses glandular-hairy leaves. Other than that distinctive feature, however, it resembles descriptions of S. leptorrhizum, which is why George Bentham reduced S. semipartitum to a synonym of S. leptorrhizum.
Stylidium velleioides is a species that belongs to the genus Stylidium. The specific epithet velleioides is a reference to how sterile material of this species resembles Velleia spathulata. It is an herbaceous annual that grows from 15 to 30 cm tall. Obovate leaves, about 6-30 per plant, either form a terminal rosette with stems present or a basal rosette when stems are absent. The leaves are generally 8–33 mm long and 3.5–9 mm wide. This species produces 1-3 scapes per plant. Inflorescences are 15–25 cm long and produce pink flowers that bloom from March to November in their native range. S. velleioides is endemic to tropical Queensland from Mount Surprise to St Lawrence. Its typical habitat has been reported as along creekbanks and seepage areas in eucalypt woodlands. S. velleioides is similar to several other species in section Debilia. It, like S. paniculatum, has a paniculate inflorescence, but differs from S. paniculatum by its longer capsules and column. It can also be confused for S. semipartitum, which has glandular-hairy leaves and scapes whereas S. velleioides's leaves and scapes are glabrous. It is also related to S. debile, which has bracteoles present, racemose inflorescences, and shorter columns and posterior petals. In his assessment of the conservation status of this species in 1999, Tony Bean described it as secure.
Stylidium section Lanata is a taxonomic rank under Stylidium subgenus Tolypangium. It was described in 1999 by Anthony Bean. Two of the species in the section were also described by Bean in 1999, but S. eriorhizum was moved from section Debilia to section Lanata. The three species differ from those of section Debilia by their perennial habit, thickened woolly plant bases, indeterminate central rachis of the inflorescence, and larger, spherical seeds that possess a small nipple.
Stylidium eriorhizum is a species that belongs to the genus Stylidium. It is an herbaceous perennial plant that grows from 12 to 25 cm tall. Spathulate to oblanceolate leaves, about 20-100 per plant, form a basal rosette with stems greatly reduced. The leaves are generally 20–60 mm long and 4–10 mm wide. This species produces 1-3 scapes per plant. Inflorescences are 10–23 cm long and produce pink to white flowers that bloom year-round in their native range. S. eriorhizum is endemic to Queensland, where it is widespread from Atherton in the north to Barakula State Forest near Chinchilla in the south. Its typical habitat has been reported as sandy soils in woodlands or heathlands.
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