Stylidium uliginosum

Stylidium uliginosum is a dicotyledonous plant that belongs to the genus Stylidium (family Stylidiaceae) and is one of the few species in the genus that is not native to Australia. It is an erect annual plant that grows from 4 to 15 cm tall. Obovate or elliptical leaves, about 7-16 per plant, form basal rosettes around compressed stems. The leaves are generally 4.5–11 mm long and 2–4.5 mm wide. This species generally has one to seven scapes and cymose inflorescences that are 4–15 cm long. Flowers are white. S. uliginosum is endemic to Southeast Asia and has a wide distribution, ranging from Thailand to the Guangdong province of southern China. The type location is in Sri Lanka, but it may be extinct there now.[1] Earlier reports list this species as also occurring in Queensland and other parts of Australia,[2] but this was before subsequent revisions revealed those occurrences in Australia were really a different species, S. tenerum, that resembled S. uliginosum.[3] Its typical habitats include sandy, moist soils in open savannah and sandy earth banks at an altitude of less than 200 metres. It flowers from October to March. S. uliginosum is most closely related to S. kunthii and S. tenerum.[3]

Stylidium uliginosum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Stylidiaceae
Genus: Stylidium
Subgenus: Stylidium subg. Andersonia
Section: Stylidium sect. Andersonia
Species:
S. uliginosum
Binomial name
Stylidium uliginosum
Synonyms

Candollea uliginosa

(Sw. ex Willd.) F.Muell. 1883

Stylidium sinicum

Hance 1852

See also

References
  1. Wadhwa, B.M. (1997). Stylidiaceae. In M.D. Dassanayake (ed.), A Revised Handbook to the Flora of Ceylon, Volume XI. A.A. Rotterdam: Balkema.
  2. Good, R. (1925). On the Geographical Distribution of the Stylidiaceae. New Phytologist, 24(4): 225-240.
  3. Bean, A.R. (2000). A revision of Stylidium subg. Andersonia (R.Br. ex G.Don) Mildbr. (Stylidiaceae). Austrobaileya 5(4): 589-649.


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