''Aspidistra elatior'', the cast-iron-plant or bar-room plant, also known in Japanese as ''haran'' or ''baran'' (葉蘭) is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...

in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Asparagaceae Asparagaceae, known as the asparagus family, is a family of flowering plants, placed in the order Asparagales of the monocots. The family name is based on the edible garden asparagus, ''Asparagus officinalis''. Those who live in the temperate c ...

native Native may refer to: People * Jus soli, citizenship by right of birth * Indigenous peoples, peoples with a set of specific rights based on their historical ties to a particular territory ** Native Americans (disambiguation) In arts and entert ...

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

and

Taiwan Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the nort ...

. Tolerant of neglect, it is widely cultivated as a

houseplant A houseplant, sometimes known as a pot plant, potted plant, or an indoor plant, is an ornamental plant that is grown indoors. As such, they are found in places like residences and offices, mainly for decorative purposes. Common houseplants are us ...

, but can also be grown outside in shade where temperatures remain above . It is used as training material for the ''

seika is a form of ''ikebana''. Written with the same ''kanji'' characters, it is also pronounced and known as ''Shōka''. History The painter Sōami and the art patron and ''shōgun'' Ashikaga Yoshimasa were supporters of the style as early as ...

'' form of ''

ikebana is the Japanese art of flower arrangement. It is also known as . The tradition dates back to Heian period, when floral offerings were made at altars. Later, flower arrangements were instead used to adorn the (alcove) of a traditional Japan ...

''.

Description

Growing to tall and wide, it is an

evergreen In botany, an evergreen is a plant which has foliage that remains green and functional through more than one growing season. This also pertains to plants that retain their foliage only in warm climates, and contrasts with deciduous plants, which ...

rhizomatous In botany and dendrology, a rhizome (; , ) is a modified subterranean plant stem that sends out roots and shoots from its nodes. Rhizomes are also called creeping rootstalks or just rootstalks. Rhizomes develop from axillary buds and grow hori ...

perennial, with glossy dark green leaves long, and fleshy, 8-lobed cream flowers with maroon colouring on the inner surface, borne in early summer.

Pollination

According to a study published in 2018, ''A. elatior'' appears to be mainly pollinated by

fungus gnats Fungus gnats are small, dark, short-lived gnats, of the families Sciaridae, Diadocidiidae, Ditomyiidae, Keroplatidae, Bolitophilidae, and Mycetophilidae (order Diptera); they comprise six of the seven families placed in the superfamily Sciaroide ...

('' Cordyla sixi'' and ''

Bradysia ''Bradysia'' is a genus of fungus gnat in the family Sciaridae.a They are commonly known as darkwinged fungus gnats. They are considered a major pest in greenhouse agriculture because they thrive in the moist conditions common inside greenhouses ...

'' spp.'')''.

Distribution

Although sometimes thought to be of Chinese origin, the species is in fact native to southern Japan, including Kuroshima,

Suwanosejima is one of the Tokara Islands, belonging to Kagoshima Prefecture. The island covers 27.66 km² in area and has a population of 48 people. Although the island has an airport, there are no regularly scheduled services, and access is normally b ...

and the Uji Islands. It occurs in association with

overstorey In biology, the canopy is the aboveground portion of a plant cropping or crop, formed by the collection of individual plant crowns. In forest ecology, canopy also refers to the upper layer or habitat zone, formed by mature tree crowns an ...

species such as ''

Ardisia sieboldii ''Ardisia'' (coralberry or marlberry) is a genus of flowering plants in the family Primulaceae. It was in the former Myrsinaceae family now recognised as the myrsine sub-family Myrsinoideae. They are distributed in the Americas, Asia, Australia ...

'' and ''

Castanopsis sieboldii ''Castanopsis sieboldii'', also known as the Itajii chinkapin or Itajii, is a species of evergreen tree that lives in subtropical eastern Asia. This is a climax species that is commonly found in the Japanese temperate rainforest. Specimens are al ...

''.

Cultivation

''A. elatior'' is well known in cultivation and has a reputation for withstanding neglect, giving rise to its common name of cast-iron plant. It is tolerant of low light, low humidity, temperature fluctuation and irregular watering. It is best situated in a position away from direct sun to avoid leaf bleaching. Good drainage is also required for optimal growth and to avoid root rot. Widely grown as a house plant, it can also be grown successfully outdoors in shade in temperate climates, where plants will generally cope with temperatures down to , being killed by frosts of or below. The species is not seriously troubled by insects, but

mite Mites are small arachnids (eight-legged arthropods). Mites span two large orders of arachnids, the Acariformes and the Parasitiformes, which were historically grouped together in the subclass Acari, but genetic analysis does not show clear evid ...

s and scale may cause occasional problems. Its leaves and roots may be subject to browsing by hoofed mammals such as deer, as well as rodents and rabbits. This plant has gained the

Royal Horticultural Society The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of London, is the UK's leading gardening charity. The RHS promotes horticulture through its five gardens at Wisley (Surrey), Hyde Hall (Essex), Harlow Carr (Nort ...

Award of Garden Merit The Award of Garden Merit (AGM) is a long-established annual award for plants by the British Royal Horticultural Society (RHS). It is based on assessment of the plants' performance under UK growing conditions. History The Award of Garden Merit ...

. A number of

cultivar A cultivar is a type of cultivated plant that people have selected for desired traits and when propagated retain those traits. Methods used to propagate cultivars include: division, root and stem cuttings, offsets, grafting, tissue culture, ...

s are available, including: *'Asahi' (meaning "morning sun" in Japanese) – the leaves open chocolate brown, turning green from the base upwards *'Hoshi-zora' (meaning "starry sky" in Japanese) – large, faintly speckled leaves *'Lennon's Song' – long narrow ends to the leaves and a central paler green stripe (discovered by an American grower of cut foliage, Robin Lennon) *'Variegata' – with white stripes running along the length of the leaf; has also won the AGM ''A. elatior'' 'Milky Way' is properly '' A. lurida'' 'Ginga'.

References

{{Taxonbar, from=Q3239567 elatior Flora of Japan Plants described in 1834 Garden plants of Asia House plants Drought-tolerant plants Low light plants