Conostylis dielsii | |
---|---|
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Clade: | Commelinids |
Order: | Commelinales |
Family: | Haemodoraceae |
Genus: | Conostylis |
Species: | C. dielsii
|
Binomial name | |
Conostylis dielsii | |
Occurrence data from AVH | |
Synonyms [1] | |
Conostylis psammophila Diels nom. inval., pro syn. |
Conostylis dielsii is a tufted perennial, grass-like plant or herb in the family Haemodoraceae and is endemic to the south-west of Western Australia. It forms short rhizomes, and has cylindrical leaves and creamy-yellow flowers.
Conostylis dielsii is a tufted perennial, grass-like plant or herb that forms short rhizomes and typically grows to 13–33 cm (5.1–13.0 in) high. The leaves are round in cross-section, 7–330 mm (0.28–12.99 in) long and 0.5–1.8 mm (0.020–0.071 in) wide and glabrous, apart from woolly hairs at the base. The flowers are arranged in dense cymes or heads on a hairy flowering stalk 40–100 mm (1.6–3.9 in) long with leaf-like bracts 6–15 mm (0.24–0.59 in) long. The perianth is creamy-yellow, 7.5–10 mm (0.30–0.39 in) long with lobes 4–6 mm (0.16–0.24 in) long. The anthers are 2.5–4 mm (0.098–0.157 in) long and the style 6.0–8.5 mm (0.24–0.33 in) long. Flowering occurs in July and August. [2] [3]
Conostylis dielsii was first formally described in 1903 by William Vincent Fitzgerald in the Journal of the Proceedings of the Mueller Botany Society of Western Australia from a specimen collected near Mingenew by Ludwig Diels. [4] [5] The specific epithet (dielsii) honours the collector of the type specimens. [6]
In 1987, Stephen Hopper described two subspecies of C. dielsii in the Flora of Australia, and the names are accepted by the Australian Plant Census:
This species of conostylis grows in low open woodland in sand and gravel between Mingenew, Walkaway and the Arrowsmith River in the Avon Wheatbelt and Geraldton Sandplains bioregions of south-western Western Australia. [2] [3] Subspecies teres grows in heath and low open woodland and is restricted to uplands inland from Walkaway in the Geraldton Sandplains bioregion. [10] [11]
Conostylis dielsii is listed as "not threatened" [3] but subsp. teres is listed as Threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions, [11] meaning that it is in danger of extinction. [12]
Conostylis dielsii | |
---|---|
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Clade: | Commelinids |
Order: | Commelinales |
Family: | Haemodoraceae |
Genus: | Conostylis |
Species: | C. dielsii
|
Binomial name | |
Conostylis dielsii | |
Occurrence data from AVH | |
Synonyms [1] | |
Conostylis psammophila Diels nom. inval., pro syn. |
Conostylis dielsii is a tufted perennial, grass-like plant or herb in the family Haemodoraceae and is endemic to the south-west of Western Australia. It forms short rhizomes, and has cylindrical leaves and creamy-yellow flowers.
Conostylis dielsii is a tufted perennial, grass-like plant or herb that forms short rhizomes and typically grows to 13–33 cm (5.1–13.0 in) high. The leaves are round in cross-section, 7–330 mm (0.28–12.99 in) long and 0.5–1.8 mm (0.020–0.071 in) wide and glabrous, apart from woolly hairs at the base. The flowers are arranged in dense cymes or heads on a hairy flowering stalk 40–100 mm (1.6–3.9 in) long with leaf-like bracts 6–15 mm (0.24–0.59 in) long. The perianth is creamy-yellow, 7.5–10 mm (0.30–0.39 in) long with lobes 4–6 mm (0.16–0.24 in) long. The anthers are 2.5–4 mm (0.098–0.157 in) long and the style 6.0–8.5 mm (0.24–0.33 in) long. Flowering occurs in July and August. [2] [3]
Conostylis dielsii was first formally described in 1903 by William Vincent Fitzgerald in the Journal of the Proceedings of the Mueller Botany Society of Western Australia from a specimen collected near Mingenew by Ludwig Diels. [4] [5] The specific epithet (dielsii) honours the collector of the type specimens. [6]
In 1987, Stephen Hopper described two subspecies of C. dielsii in the Flora of Australia, and the names are accepted by the Australian Plant Census:
This species of conostylis grows in low open woodland in sand and gravel between Mingenew, Walkaway and the Arrowsmith River in the Avon Wheatbelt and Geraldton Sandplains bioregions of south-western Western Australia. [2] [3] Subspecies teres grows in heath and low open woodland and is restricted to uplands inland from Walkaway in the Geraldton Sandplains bioregion. [10] [11]
Conostylis dielsii is listed as "not threatened" [3] but subsp. teres is listed as Threatened" by the Western Australian Government Department of Biodiversity, Conservation and Attractions, [11] meaning that it is in danger of extinction. [12]