''Spathiphyllum wallisii'', commonly known as peace lily, white sails, or spathe flower, is a very popular indoor

house plant A houseplant, also known as a pot plant, potted plant, or indoor plant, is an ornamental plant cultivated indoors. for aesthetic or practical purposes. These plants are commonly found in homes, offices, and various indoor spaces, where they contr ...

of the family

Araceae The Araceae are a family of monocotyledonous flowering plants in which flowers are borne on a type of inflorescence called a spadix. The spadix is usually accompanied by, and sometimes partially enclosed in, a spathe (or leaf-like bract). Also ...

. The genus name means "spathe-leaf", and the specific epithet is named after

Gustav Wallis Gustav Wallis (1 May 1830 – 20 June 1878) was a German plant collector who introduced over 1,000 plant species to Europe, many of which were named after him. He was particularly focused on orchid hunting during the Victorian orchid craze, but ...

, the German

plant collector A botanical specimen, also called a plant specimen, is a biological specimen of a plant (or part of a plant) used for scientific purposes. Preserved collections of algae, fungi, slime molds, and other organisms traditionally studied by botanists a ...

. It was first described in 1877.

Description

It is a

herbaceous Herbaceous plants are vascular plants that have no persistent woody stems above ground. This broad category of plants includes many perennials, and nearly all annuals and biennials. Definitions of "herb" and "herbaceous" The fourth edition of ...

perennial In horticulture, the term perennial ('' per-'' + '' -ennial'', "through the year") is used to differentiate a plant from shorter-lived annuals and biennials. It has thus been defined as a plant that lives more than 2 years. The term is also ...

which produces flowers in the typical aroid structure: a densely crowded

inflorescence In botany, an inflorescence is a group or cluster of flowers arranged on a plant's Plant stem, stem that is composed of a main branch or a system of branches. An inflorescence is categorized on the basis of the arrangement of flowers on a mai ...

called a spadix is subtended by one large

bract In botany, a bract is a modified or specialized leaf, associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves in size, color, shape or texture. They also lo ...

called a spathe (occasionally two spathes are produced, with the upper spathe smaller). The spadix is generally cream or ivory when young, and turns green with age; the spathe is generally white or white with green nerves distally from the margin, turning green with age. Leaves are basal, glossy and somewhat deeply veined, ovate and acuminate. The petioles are long and the leaves arch gracefully. The plant produces offsets at the base and in time becomes a dense clump. ''Spathiphyllum wallisii'' is one of approximately 40

species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...

in a genus of

tropical The tropics are the regions of Earth surrounding the equator, where the sun may shine directly overhead. This contrasts with the temperate or polar regions of Earth, where the Sun can never be directly overhead. This is because of Earth's ax ...

evergreens In botany, an evergreen is a plant which has Leaf, foliage that remains green and functional throughout the year. This contrasts with deciduous plants, which lose their foliage completely during the winter or dry season. Consisting of many diffe ...

. It was discovered in the late 19th century growing wild in

Colombia Colombia, officially the Republic of Colombia, is a country primarily located in South America with Insular region of Colombia, insular regions in North America. The Colombian mainland is bordered by the Caribbean Sea to the north, Venezuel ...

. A number of cultivars, many of hybrid origin, are commercially available, such as the larger hybrids "Mauna Loa", named after the Hawaiian volcano, and the even larger “Sensation", which are both popular indoor plants. "Domino" is a finely variegated variety of intermediate size. Its wide natural range includes parts of

Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...

, the

Caribbean Islands Most of the Caribbean countries are islands in the Caribbean Sea, with only a few in inland lakes. The largest islands include Cuba, Hispaniola, Jamaica and Puerto Rico. Some of the smaller islands are referred to as a ''rock'' or ''reef.'' ''I ...

, and northern

South America South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a considerably smaller portion in the Northern Hemisphere. It can also be described as the southern Subregion#Americas, subregion o ...

References

External links

* * {{Taxonbar, from=Q761494 wallisii Flora of Central America House plants Taxa named by Eduard August von Regel