Lathraea | |
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Common toothwort ( Lathraea squamaria ) | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Lamiales |
Family: | Orobanchaceae |
Tribe: | Rhinantheae |
Genus: | Lathraea L. |
Species | |
Lathraea clandestina Contents |
Lathraea (toothwort) is a small genus of five to seven species of flowering plants, native to temperate Europe and Asia. They are parasitic plants on the roots of other plants, and are completely lacking chlorophyll. They are classified in the family Orobanchaceae.
The genus name Lathraea derives from the ancient greek λαθραῖος (lathraîos), meaning "clandestine", [1] which is a reference to the fact that it is inconspicuous until it flowers. [2]
The phylogeny of the genera of Rhinantheae has been explored using molecular characters. [3] [4] Lathraea is the sister genus to Rhinanthus , and then to Rhynchocorys . These three genera share phylogenetic affinities with members of the core Rhinantheae: Bartsia , Euphrasia , Tozzia , Hedbergia , Bellardia , and Odontites . Melampyrum appears as a more distant relative.
Genus-level cladogram of tribe Rhinantheae. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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The cladogram has been reconstructed from nuclear and plastid DNA molecular characters (ITS, rps16 intron and trnK region). [3] [4] |
In Pavel Ivanovich Melnikov's "In the Forests" a Russian wise woman (znakharka) calls this plant[ which? ] Peter's Cross and says it protects against devils but only if collected with a prayer to God.
Orobanchaceae, the broomrapes, is a family of mostly parasitic plants of the order Lamiales, with about 90 genera and more than 2000 species. Many of these genera were formerly included in the family Scrophulariaceae sensu lato. With its new circumscription, Orobanchaceae forms a distinct, monophyletic family. From a phylogenetic perspective, it is defined as the largest crown clade containing Orobanche major and relatives, but neither Paulownia tomentosa nor Phryma leptostachya nor Mazus japonicus.
Lathraea squamaria, the common toothwort, is a species of flowering plant in the family Orobanchaceae. It is widely distributed in Europe and also occurs in Turkey.
Euphrasia, or eyebright, is a genus of about 450 species of herbaceous flowering plants in the family Orobanchaceae, with a cosmopolitan distribution. They are hemiparasitic on grasses and other plants. The common name refers to the plant's use in treating eye infections.
Melampyrum is a genus of about 20 species of herbaceous flowering plants in the family Orobanchaceae known commonly as cow wheat. They are native to temperate regions of the Northern Hemisphere. They are hemiparasites on other plants, obtaining water and nutrients from host plants, though they are able to survive on their own without parasitising other plants.
Rhinanthus is a genus of annual hemiparasitic herbaceous plants in the family Orobanchaceae, formerly classified in the family Scrophulariaceae. Its species are commonly known as rattles. The genus consists of about 30 to 40 species found in Europe, northern Asia, and North America, with the greatest species diversity in Europe.
Asteliaceae is a family of flowering plants, placed in the order Asparagales of the monocots.
Bartsia is a genus of flowering plants in the family Orobanchaceae.
Boschniakia is a genus of parasitic plants in the family Orobanchaceae. They are known commonly as groundcones and they are native to western North America and extreme northeastern Asia. Some taxonomists consider Boschniakia to be three separate genera: Boschniakia, Kopsiopsis, and Xylanche. When the genus is split, only a single species remains: Boschniakia rossica, the northern groundcone.
Bellardia trixago is a species of flowering plant in the family Orobanchaceae. The only member of the monotypic genus Bellardia, it is known as trixago bartsia or Mediterranean lineseed. This plant is native to the Mediterranean Basin, but it is known in other places with similar climates, such as California and parts of Chile, where it is an introduced species and noxious weed.
Parentucellia is a small genus of flowering plants in the family Orobanchaceae containing about four species. They are known generally as glandweeds. The genus was named for Pope Nicholas V, whose surname was Parentucelli.
Toothwort is a common name for several plants and may refer to:
Boschniakia rossica, commonly known as the northern groundcone, is a holoparasitic plant that lives in the northern latitudes of the northern hemisphere. In the Pacific Northwest Temperate Rainforest, it does not grow south of Prince of Wales Island, beyond that boundary is the Vancouver groundcone habitat. It does not contain chlorophyll, so it must be parasitic to obtain nutrients. It specializes on Alnus species, but can parasitize off of other trees and shrubs such as on Betula (birch), Salix (willow), Vaccinium (blueberry), Picea (spruce), and Chamaedaphne. This organism is likely to be found at mid elevations alongside rivers and streams, where moisture is abundant. This species propagates itself through water flow. In some places bears are known to have eaten the starchy roots, or tubers, of this plant.
Orobanche hederae, the ivy broomrape, is, like other members of the genus Orobanche, a parasitic plant without chlorophyll, and thus totally dependent on its host, which is ivy. It grows to 60 cm (2 ft), with stems in shades of brown and purple, sometimes yellow. The flowers are 10–22 mm (0.4–0.9 in) long, cream in colour with reddish-purple veins.
Lathraea clandestina, the purple toothwort also known as clandestine in France, is a parasitic plant species in the flowering plant family Orobanchaceae. It is native to western Europe.
Rhinantheae is a tribe with fewer than 20 genera of herbaceous plants in the family Orobanchaceae.
Rhynchocorys is a small genus of flowering plants belonging to the family Orobanchaceae, formerly classified in the family Scrophulariaceae. It is native to Europe, Morocco and Algeria.
Tozzia is a monotypic genus of flowering plants within the broomrape family Orobanchaceae. It contains a unique species, Tozzia alpina.
Hedbergia is a monotypic genus of flowering plants, initially classified in Scrophulariaceae, and now within the broomrape family Orobanchaceae. It contains a unique species, Hedbergia abyssinica. It is an afromontane genus, widespread in grasslands and scrubs of the mountains of tropical Africa, and known from Ethiopia, Zaire, Uganda, Kenya, Tanzania, Malawi, Nigeria, and Cameroons.
Hedbergia decurva, formerly Bartsia decurva, is a species of flowering plants in the family Orobanchaceae.
Hedbergia longiflora, formerly Bartsia longiflora, is a species of flowering plants in the family Orobanchaceae.