Johnsonia | |
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Johnsonia pubescens in Lesueur National Park | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Asparagales |
Family: | Asphodelaceae |
Subfamily: | Hemerocallidoideae |
Genus: | Johnsonia R.Br. [1] |
Type species | |
Johnsonia lupulina |
Johnsonia is a genus composed of five species of herbs in the family Asphodelaceae, all of which are endemic to the south-west of Western Australia. They are grass-like plants with minute flowers surrounded by bracts which are often tinged with white, pink or cream.
All the plants in this genus are rhizomatous, tufted, perennial herbs with grass-like leaves which all emerge from the base of the plant. The bases of the leaves surround the stem. The flower spike is leafless, more or less the same length as the leaves, with large, dry overlapping bracts surrounding minute flowers. All species flower between August and December. [2] [3]
The genus was first formally described in 1810 by Robert Brown in Prodromus Florae Novae Hollandiae et Insulae Van Diemen . The type species is Johnsonia lupulina . [4] [5] The name Johnsonia is in recognition of the 17th century English naturalist, Thomas Johnson. [2]
The following is a list of species of Johnsonia recognised by the World Checklist of Selected Plant Families as at January 2019: [1]
Johnsonia species all occur in the south-west of Western Australia in the Avon Wheatbelt, Esperance Plains, Jarrah Forest, Mallee, Swan Coastal Plain and Warren biogeographic zones. Each species has its own habitat requirements. [6]
Prasophyllum, commonly known as leek orchids, is a genus of about 140 species of flowering plants in the orchid family, Orchidaceae and is found in Australia and New Zealand. The Australian species are found in all states but have not been recorded in the Northern Territory. The common name arises from their having a hollow, leek- or onion-like leaf. Some species only flower after summer fires and have flowers similar to those of Xanthorrhoea which flower at the same time, suggesting that they employ the same pollinating insects. Leek orchids are similar to those in the genus Genoplesium except that the free part of the leaf is cylindrical and the labellum has a solid connection to the column. They range in size from the little laughing leek orchid at about 15 cm (6 in) to the king leek orchid which grows up to 2 m (80 in) tall.
Isotoma is a genus of annual and perennial herbs in the family Campanulaceae and are native to Australia and New Zealand.
Dampiera is a genus of about 70 species of flowering plants in the family Goodeniaceae, all of which are endemic to Australia. Plants in the genus Dampiera are subshrubs or herbs with sessile leaves, flowers with five small sepals and blue, violet or pink, rarely white, two-lipped flowers.
Cyrtostylis, commonly known as gnat orchids, is a genus of five or six species of flowering plants in the orchid family Orchidaceae and is native to Australia and New Zealand. Cyrtostylis orchids often form dense colonies of genetically identical plants. They have a single heart-shaped leaf and a thin flowering stem with pale coloured insect-like flowers. The lateral sepals and petals are similar in size and colour but the labellum is shelf-like and conspicuous with two prominent glands at its base.
Calectasia is a genus of about fifteen species of flowering plants in the family Dasypogonaceae and is endemic to south-western Australia. Plants is this genus are small, erect shrubs with branched stems covered by leaf sheaths. The flowers are star-shaped, lilac-blue to purple and arranged singly on the ends of short branchlets.
Stypandra is a small genus of rhizomatous perennials in the family Asphodelaceae, subfamily Hemerocallidoideae. They are native to Australia and New Caledonia.
Dipodium, commonly known as hyacinth orchids, is a genus of about forty species of orchids native to tropical, subtropical and temperate regions of south-east Asia, New Guinea, the Pacific Islands and Australia. It includes both terrestrial and climbing species, some with leaves and some leafless, but all with large, often colourful flowers on tall flowering stems. It is the only genus of its alliance, Dipodium.
Spinifex longifolius, commonly known as beach spinifex, is a perennial grass that grows in sandy regions along the seacoast. It also lives in most deserts around Australia.
Conostylis is a genus of perennial herbs in the Haemodoraceae family, commonly known as cone flowers. All species are endemic to the south west of Western Australia.
Tricoryne is a genus of perennial herbs in the family Asphodelaceae, subfamily Hemerocallidoideae. All species are native to Australia with two species extending to New Guinea; within Australia they occur in all 6 states and the Northern Territory.
Eriochilus, commonly known as bunny orchids, is a genus of flowering plants in the orchid family, Orchidaceae that is endemic to Australia. Orchids in this genus are distinguished from those in the similar Caladenia by having a glabrous leaf and a densely woolly labellum. Species occur in south-west Western Australia, South Australia, Queensland, New South Wales, the Australian Capital Territory, Victoria, and Tasmania. Their common name alludes to their prominent ear-like lateral sepals.
Xerochloa is a genus of Australian and Southeast Asian plants in the grass family.
Lyperanthus, commonly known as beak orchids, is a genus of flowering plants from the orchid family, Orchidaceae, that is endemic to Australia. There are two species, one in Western Australia and the other in four eastern Australian states, distinguished by their single long, narrow, leathery leaf and dull coloured flowers which have prominent short calli on their labellum. Both form loose colonies which reproduce asexually from their tubers, and sexually using their flowers.
Pyrorchis, commonly known as beak orchids, is a genus of flowering plants in the orchid family, Orchidaceae and is endemic to Australia. It contains two species which were previously included in the genus Lyperanthus, also known as beak orchids. Both species have fleshy, oval leaves and form colonies which flower profusely after bushfires.
Caleana, commonly known as duck orchids, is a genus of flowering plants in the orchid family, Orchidaceae that is found in Australia and New Zealand. The Australian species are found in all states but have not been recorded in the Northern Territory. Duck orchids have a single leaf and one or a few, dull-coloured, inconspicuous flowers. Most species are found in Western Australia but one species occurs in eastern Australia and one occurs in eastern Australia and New Zealand. Orchids in this genus as well as the hammer orchids (Drakaea) are pollinated by male thynnid wasps.
Anisomeles is a genus of herbs of the family Lamiaceae and is native to China, the Indian Subcontinent, Southeast Asia, New Guinea, Australia, Madagascar, and some Pacific and Indian Ocean islands. Plants in the genus Anisomeles have small, flat, narrow elliptic to narrow e.g.-shaped leaves arranged in opposite pairs, the edges of the leaves sometimes wavy or serrated. The flowers are arranged in groups, with five sepals and five petals in two "lips", the lower lip with three lobes, the middle lobe much longer than the side lobes. There are four stamens that extend beyond the petals and a single style in a depression on top of the ovary. The fruit is a schizocarp with four nutlets containing small seeds.
Conostylis aculeata, commonly known as prickly conostylis, is a flowering, tufted perennial plant in the family Haemodoraceae. It has flat leaves and yellow, hairy, tubular flowers. It is endemic to the south-west of Western Australia.
Chloanthes is a genus of four species of flowering plants in the family Lamiaceae and is endemic to Australia. Plants in this genus are shrubs with hairy foliage, blistered or wrinkly leaves and flowers with five petals fused at the base, usually with two "lips".
Stenanthera is a genus of flowering plants in the family Ericaceae. Most are low shrubs with leaves that are paler on the lower surface, tube-shaped flowers and with the fruit a drupe. There are three species, formerly included in the genus Astroloma.
Johnsonia pubescens, commonly called the pipe lily, is a grass-like plant in the family Asphodelaceae, subfamily Hemerocallidoideae, endemic to the south-west of Western Australia. As with others in the genus, it is distinguished by its minute flowers which are on the end of a spike and hidden by large, overlapping, papery bracts.