Biology:Prostanthera verticillaris
| Prostanthera verticillaris | |
|---|---|
Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Asterids |
| Order: | Lamiales |
| Family: | Lamiaceae |
| Genus: | Prostanthera |
| Species: | P. verticillaris
|
| Binomial name | |
| Prostanthera verticillaris B.J.Conn[1]
| |
| |
| Occurrence data from AVH | |
Prostanthera verticillaris is a species of flowering plant in the family Lamiaceae and is endemic to a restricted area of Western Australia. It is a spreading shrub with whorled, egg-shaped to elliptic leaves and white to purplish-blue flowers.
Description
Prostanthera verticillaris is a spreading, openly-branched shrub that typically grows to a height of 0.5–2 m (1 ft 8 in–6 ft 7 in) and has hairy branches. The leaves are arranged in whorls of three or four, more or less glabrous, egg-shaped to elliptic, 9.5–11 mm (0.37–0.43 in) long, 4–6 mm (0.16–0.24 in) wide and sessile or on a petiole up to 1 mm (0.039 in) long. The flowers are borne on groups of six to eight near the ends of branches, each flower on a pedicel about 2 mm (0.079 in) long. The sepals form a tube about 3.5 mm (0.14 in) long with two lobes, the lower lobe about 2 mm (0.079 in) long and the upper lobe 4–4.5 mm (0.16–0.18 in) long. The petals are white to purplish-blue, 9–12 mm (0.35–0.47 in) long and form a tube with two lips, the lower centre lobe spatula-shaped, 5.3–6.8 mm (0.21–0.27 in) long and the side lobes about 2.5 mm (0.098 in) long. The upper lip is egg-shaped, about 4 mm (0.16 in) long and wide with a central notch about 1.2 mm (0.047 in) deep. Flowering occurs from September to October.[2][3]
Taxonomy
Prostanthera verticillaris was first formally described in 1988 by Barry Conn in the journal Nuytsia from specimens collected by Kenneth Newbey north-east of Albany in 1967.[2][4]
Distribution and habitat
This mintbush grows on granite outcrops and is only known from the type location in the Esperance Plains biogeographic regions of Western Australia.[2][3]
Conservation status
Prostanthera verticillaris is classified as "Priority One" by the Government of Western Australia Department of Parks and Wildlife,[3] meaning that it is known from only one or a few locations which are potentially at risk.[5]
References
- ↑ "Prostanthera verticillaris". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/111462.
- ↑ 2.0 2.1 2.2 Conn, Barry J. (1988). "A taxonomic revision of Prostanthera Labill. section Prostanthera (Labiatae). 1. The species of the Northern Territory, South Australia and Western Australia". Nuytsia 6 (3): 355–356. https://www.biodiversitylibrary.org/item/223970#page/83/mode/1up. Retrieved 6 October 2020.
- ↑ 3.0 3.1 3.2 "Prostanthera verticillaris". FloraBase. Western Australian Government Department of Parks and Wildlife. https://florabase.dpaw.wa.gov.au/browse/profile/12727.
- ↑ "Prostanthera verticillaris". APNI. https://id.biodiversity.org.au/instance/apni/544012.
- ↑ "Conservation codes for Western Australian Flora and Fauna". Government of Western Australia Department of Parks and Wildlife. https://www.dpaw.wa.gov.au/images/documents/plants-animals/threatened-species/Listings/Conservation%20code%20definitions.pdf.
Wikidata ☰ Q15355554 entry
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