Jump to content

Conostylis androstemma

From Wikipedia, the free encyclopedia

Conostylis androstemma
Scientific classification Edit this 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[2]

Androstemma junceum Lindl.

Conostylis androstemma (common name trumpets)[3] 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.[3]

Description

[edit]

Conostylis androstemma has green, hairless, terete leaves that are 10–30 cm (3.9–11.8 in) long and about 1 mm (0.039 in) in diameter. The flowers are borne on pedicels that are 4–6 mm (0.16–0.24 in) long, with bracts 8–10 mm (0.31–0.39 in) long and 2 mm (0.079 in) wide at the base.[4] The flowers are white to cream-coloured or yellow, 25–45 mm (0.98–1.77 in) long, hairy and radially symmetrical with lobes that are 15–22 mm (0.59–0.87 in) long.[3][4] The six stamens are in one level, the anthers 11–12 mm (0.43–0.47 in) long and the style 33–45 mm (1.3–1.8 in) long.[4][3] Flowering occurs from May to August.[3] The plant resprouts from its rhizomes, after fire.[4]

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

Taxonomy

[edit]

Originally named Androstemma junceum and described by John Lindley in 1840 in A Sketch of the Vegetation of the Swan River Colony,[5][6] The species was assigned to the genus Conostylis by botanist Ferdinand von Mueller in 1873 in Fragmenta Phytographiae Australiae and renamed Conostylis androstemma.[7][8]

Distribution and habitat

[edit]

Conostylis androstemma grows in lateritic gravel and yellow sand on screes and hilltops, and occurs in south-western Western Australia from Kalbarri National Park to Perth and York in the Avon Wheatbelt, Geraldton Sandplains, Jarrah Forest, Swan Coastal Plain and Yalgoo bioregions of south-western Western Australia.[3][4]

References

[edit]
  1. ^ "Conostylis androstemma". Australian Plant Census. Retrieved 10 April 2024.
  2. ^ 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.
  3. ^ a b c d e f "Conostylis androstemma". FloraBase. Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ^ a b c d e f g "Conostylis androstemma F.Muell". Flora of Australia Online. Department of the Environment and Heritage, Australian Government.
  5. ^ "Androstemma junceum". APNI. Retrieved 10 April 2024.
  6. ^ Lindley, John (1840). A Sketch of the Vegetation of the Swan River Colony. Piccadilly: James Ridgway. p. 55. Retrieved 10 April 2024.
  7. ^ "Conostylis androstemma". APNI. Retrieved 10 April 2024.
  8. ^ von Mueller, Ferdinand (1873). Fragmenta Phytographiae Australiae. Vol. 8. Melbourne: Victorian Government Printer. p. 19. Retrieved 10 April 2024.