Conostylis androstemma

Conostylis androstemma (common name trumpets) is a tufted perennial plant species in the family Haemodoraceae. It is endemic to the south-west of Western Australia.[4] Plants grow to between 10 and 30 cm high and produce cream to pale yellow flowers between May and August in the species' native range.[5]

Conostylis androstemma
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Commelinales
Family: Haemodoraceae
Genus: Conostylis
Species:
C. androstemma
Binomial name
Conostylis androstemma
Occurrence data from AVH
Synonyms[3]

Androstemma junceum Lindl.

Description

Conostylis androstemma has green, hairless, terete leaves which are 10 to 30 cm long and about 1 mm in diameter. The flower has stems (pedicels) that are less than 1 mm long, and bracts which are about 5 mm long and 2 mm wide.[4] The cream to pale yellow perianth is hairy and radially symmetrical[5] It is 30–50 mm long with a tube which is usually straight. The lobes are not reflexed and are 15 to 25 mm long.[4] There are six stamens, all at the one level.[5] The filaments are 8–17 mm long and the yellow anthers 3–5.5 mm long[4] and without an appendage.[5] The style is 30–50 mm long.[4]

It flowers from May to August.[5]

The plant resprouts from its rhizomes, after fire.[4]

It is easily distinguished from Conostylis argentea by its terete hairless leaves.[4]

Habitat

It grows in lateritic gravel and yellow sand on screes and hilltops,[5]

Distribution

It occurs in south-western Western Australia from Kalbarri National Park to Perth and York.[4]

Taxonomy

Originally named Androstemma junceum and described by John Lindley in 1840 in A Sketch of the Vegetation of the Swan River Colony,[6][7] the species was assigned to the genus Conostylis by botanist Ferdinand von Mueller in 1873 in Fragmenta Phytographiae Australiae and renamed Conostylis androstemma.[1][2]

References
  1. "Conostylis androstemma". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government. Retrieved 8 January 2019.
  2. Mueller, F.J.H. von (1873) Fragmenta Phytographiae Australiae 8(59): 19. Retrieved 8 January 2019.
  3. Govaerts, R., et. al. (2019) Plants of the world online:Conostylis androstemma. Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 9 January 2019.
  4. "Conostylis androstemma F.Muell". Flora of Australia Online. Department of the Environment and Heritage, Australian Government.
  5. "Conostylis androstemma". FloraBase. Western Australian Government Department of Parks and Wildlife.
  6. "Androstemma junceum". Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government. Retrieved 9 January 2019.
  7. Lindley, J. (1840) A Sketch of the Vegetation of the Swan River Colony: xlvi.
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.