Paris quadrifolia
Encyclopedia
Paris quadrifolia is a species of the genus Paris
in the family Melanthiaceae
, although authorities formerly regarded it as part of the Liliaceae
family. It is related to Trillium
, with which it can be confused. Trillium, however, is generally 3-merous (3 leaves per whorl, 3 petals etc.), whereas Paris is 4-merous.
of four or more stem leaves. It prefers calcareous
soils and lives in damp and shady places, especially old established woods and streamsides. It occurs locally in temperate and cool areas throughout Europe
and Asia
but is absent in the wild from the Americas
, Africa
and the southern hemisphere. In Britain
it is more frequently found in the east of the country, but it is uncommon throughout its range. Each plant only produces one blueberry-like fruit, which is poisonous.
Paris (genus)
Paris is the botanical name of a genus of flowering plants. It consists of less than two dozen herbaceous plants: the best known species is Paris quadrifolia. The primary center of Paris diversity is China; the genus includes representatives native to Europe and Asia...
in the family Melanthiaceae
Melanthiaceae
Melanthiaceae is a family of flowering perennial herbs in the Northern Hemisphere. The family has been recognized by relatively few taxonomists, and the circumscription has varied...
, although authorities formerly regarded it as part of the Liliaceae
Liliaceae
The Liliaceae, or the lily family, is a family of monocotyledons in the order Liliales. Plants in this family have linear leaves, mostly with parallel veins but with several having net venation , and flower arranged in threes. Several have bulbs, while others have rhizomes...
family. It is related to Trillium
Trillium
Trillium is a genus of about 40–50 species of spring ephemeral perennials, native to temperate regions of North America and Asia....
, with which it can be confused. Trillium, however, is generally 3-merous (3 leaves per whorl, 3 petals etc.), whereas Paris is 4-merous.
Characteristics
Paris quadrifolia has solitary flowers with four or more very narrow greenish filiform (threadlike) petals and green petaloid sepals. The flower is borne above a single whorlWhorl (botany)
In botany, a whorl is an arrangement of sepals, petals, leaves, or branches in which all the parts are attached at the same point and surround or wrap around the stem.There are four whorls in a general flower...
of four or more stem leaves. It prefers calcareous
Limestone
Limestone is a sedimentary rock composed largely of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate . Many limestones are composed from skeletal fragments of marine organisms such as coral or foraminifera....
soils and lives in damp and shady places, especially old established woods and streamsides. It occurs locally in temperate and cool areas throughout Europe
Europe
Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...
and Asia
Asia
Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...
but is absent in the wild from the Americas
Americas
The Americas, or America , are lands in the Western hemisphere, also known as the New World. In English, the plural form the Americas is often used to refer to the landmasses of North America and South America with their associated islands and regions, while the singular form America is primarily...
, Africa
Africa
Africa is the world's second largest and second most populous continent, after Asia. At about 30.2 million km² including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area...
and the southern hemisphere. In Britain
Great Britain
Great Britain or Britain is an island situated to the northwest of Continental Europe. It is the ninth largest island in the world, and the largest European island, as well as the largest of the British Isles...
it is more frequently found in the east of the country, but it is uncommon throughout its range. Each plant only produces one blueberry-like fruit, which is poisonous.