''Calamus muelleri'', commonly known as southern lawyer cane or wait-a-while, is a climbing

palm Palm most commonly refers to: * Palm of the hand, the central region of the front of the hand * Palm plants, of family Arecaceae **List of Arecaceae genera * Several other plants known as "palm" Palm or Palms may also refer to: Music * Palm (ba ...

with a

vine A vine (Latin ''vīnea'' "grapevine", "vineyard", from ''vīnum'' "wine") is any plant with a growth habit of trailing or scandent (that is, climbing) stems, lianas or runners. The word ''vine'' can also refer to such stems or runners themselv ...

-like

habit A habit (or wont as a humorous and formal term) is a routine of behavior that is repeated regularly and tends to occur subconsciously.

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

to the

subtropical The subtropical zones or subtropics are geographical zone, geographical and Köppen climate classification, climate zones to the Northern Hemisphere, north and Southern Hemisphere, south of the tropics. Geographically part of the Geographical z ...

coastal

rainforest Rainforests are characterized by a closed and continuous tree canopy, moisture-dependent vegetation, the presence of epiphytes and lianas and the absence of wildfire. Rainforest can be classified as tropical rainforest or temperate rainfores ...

s of northern

New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...

and southern

Queensland ) , nickname = Sunshine State , image_map = Queensland in Australia.svg , map_caption = Location of Queensland in Australia , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , established_ ...

. Sharp hooks on the plant can snag the clothing of walkers in these forests, giving rise to the name "wait-a-while".

Description

''C. muelleri'' is a clustering, climbing palm growing up to in length, with thin stems up to diameter. The

pinnate Pinnation (also called pennation) is the arrangement of feather-like or multi-divided features arising from both sides of a common axis. Pinnation occurs in biological morphology, in crystals, such as some forms of ice or metal crystals, and in ...

fronds are

alternate Alternative or alternate may refer to: Arts, entertainment and media * Alternative (''Kamen Rider''), a character in the Japanese TV series ''Kamen Rider Ryuki'' * ''The Alternative'' (film), a 1978 Australian television film * ''The Alternative ...

and more or less

sessile Sessility, or sessile, may refer to: * Sessility (motility), organisms which are not able to move about * Sessility (botany), flowers or leaves that grow directly from the stem or peduncle of a plant * Sessility (medicine), tumors and polyps that ...

. They are up to long with 7-13 leaflets on each side and have long recurved spines on the

rachis In biology, a rachis (from the grc, ῥάχις [], "backbone, spine") is a main axis or "shaft". In zoology and microbiology In vertebrates, ''rachis'' can refer to the series of articulated vertebrae, which encase the spinal cord. In this c ...

. The leaflets have spines along the midrib on the upper surface and small sharp spurs on their margins. The leaf sheath is densely covered in spines. This species, like others in the genus, produces a modified sterile

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

(known as a flagellum) up to long, which is armed with dozens of strong, recurved barbs that act like

grappling hook A grappling hook or grapnel is a device that typically has multiple hooks (known as ''claws'' or ''flukes'') attached to a rope; it is thrown, dropped, sunk, projected, or fastened directly by hand to where at least one hook may catch and hol ...

s to latch on to nearby vegetation and provide support for the plant. Fertile inflorescences are up to long and flowering occurs in all months of the year. The fruits are a

globose A sphere () is a geometrical object that is a three-dimensional analogue to a two-dimensional circle. A sphere is the set of points that are all at the same distance from a given point in three-dimensional space.. That given point is the ce ...

drupe In botany, a drupe (or stone fruit) is an indehiscent fruit in which an outer fleshy part (exocarp, or skin, and mesocarp, or flesh) surrounds a single shell (the ''pit'', ''stone'', or '' pyrena'') of hardened endocarp with a seed (''kernel'') ...

about in diameter, containing a single seed.

Taxonomy

The southern lawyer cane was first described by the

German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ger ...

botanist Botany, also called , plant biology or phytology, is the science of plant life and a branch of biology. A botanist, plant scientist or phytologist is a scientist who specialises in this field. The term "botany" comes from the Ancient Greek wo ...

and noted authority on Arecaceae

Hermann Wendland Hermann Wendland (October 11, 1825 in Herrenhausen – January 12, 1903 in Hanover) was a German botanist and gardener. He was a noted authority on the family Arecaceae (palms), on which he published a major monograph which formed the basis for t ...

, based on specimens collected by

Hermann Beckler Dr. Hermann Beckler (28 September 1828, in Höchstädt an der Donau – 10 December 1914, in Fischen im Allgäu) was a German doctor with an interest in botany. He went to Australia to collect specimen for Ferdinand von Mueller and served as medi ...

and others on the

Brisbane River The Brisbane River is the longest river in South East Queensland, Australia, and flows through the city of Brisbane, before emptying into Moreton Bay on the Coral Sea. John Oxley, the first European to explore the river, named it after the Go ...

and

Moreton Bay Moreton Bay is a bay located on the eastern coast of Australia from central Brisbane, Queensland. It is one of Queensland's most important coastal resources. The waters of Moreton Bay are a popular destination for recreational anglers and are ...

in Queensland and on the

Clarence Clarence may refer to: Places Australia * Clarence County, New South Wales, a Cadastral division * Clarence, New South Wales, a place near Lithgow * Clarence River (New South Wales) * Clarence Strait (Northern Territory) * City of Clarence, a l ...

and

Richmond River The Richmond River is a river situated in the Northern Rivers region of New South Wales, Australia. Course and features The river rises at the northern end of the Richmond Range, near its junction with the McPherson Range, on the Queensla ...

s in New South Wales. Wendland's work was published in the journal ''Linnaea; Ein Journal für die Botanik in ihrem ganzen Umfange'' in 1875.

Distribution and habitat

''Calamus muelleri'' grows in

s and wet sclerophyll forests in subtropical eastern Australia, from around

Gympie Gympie ( ) is a city and a Suburbs and localities (Australia), locality in the Gympie Region, Queensland, Australia. In the Wide Bay-Burnett District, Gympie is about north of the state capital, Brisbane. The city lies on the Mary River (Queen ...

in Queensland south to the Bellinger and

Hastings River Hastings River ( Birpai: ''Doongang''), an open and trained intermediate wave dominated barrier estuary, is located in the Northern Tablelands and Mid North Coast districts of New South Wales, Australia. Course and features Hastings River rise ...

s in New South Wales.

Ecology

'' Laetesia raveni'', a species of spider endemic to eastern Australia, builds its web only in two plant species, ''Calamus muelleri'' and ''Solanum inaequilaterum'', both of which are spiny plants.

Conservation

This species is listed by the Queensland Department of Environment and Science as

least concern A least-concern species is a species that has been categorized by the International Union for Conservation of Nature (IUCN) as evaluated as not being a focus of species conservation because the specific species is still plentiful in the wild. T ...

. , it has not been assessed by the

IUCN The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natu ...

Uses

Aboriginal Australians Aboriginal Australians are the various Indigenous peoples of the Australian mainland and many of its islands, such as Tasmania, Fraser Island, Hinchinbrook Island, the Tiwi Islands, and Groote Eylandt, but excluding the Torres Strait Islands ...

used the cane stems for weaving.

Gallery

Image:Calamus-muelleri-01.jpg, Young plant Image:Calamus-muelleri-02.jpg, Spines Image:Calamus-muelleri-03.jpg, Stem Image:Calamus-muelleri-05.jpg, Leaf rachis Image:Calamus-muelleri-04.jpg, Stem

References

External links

* *
View a map
of recorded sightings of ''Calamus muelleri'' at the

Australasian Virtual Herbarium The ''Australasian Virtual Herbarium'' (AVH) is an online resource that allows access to plant specimen data held by various Australian and New Zealand herbaria. It is part of the Atlas of Living Australia (ALA), and was formed by the amalgamat ...

See images
of ''Calamus muelleri'' on Flickriver {{Taxonbar, from=Q5018500 muelleri Plants described in 1875 Flora of New South Wales Flora of Queensland Taxa named by Hermann Wendland