Larrea is a genus of flowering plants in the caltrop family, Zygophyllaceae. It contains five species of evergreen shrubs that are native to the Americas. The generic name honours Bishop J.A. Hernández Pérez de Larrea, a patron of science.South American members of this genus are known as jarillas and can produce fertile interspecific hybrids. One of the more notable species is the creosote bush ( L. tridentata ) of the southwestern United States and northwestern Mexico. The King Clone ring in the Mojave Desert is a creosote bush clonal colony estimated to be 11,700 years old.
A genus is a taxonomic rank used in the biological classification of living and fossil organisms, as well as viruses, in biology. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus.
The flowering plants, also known as angiosperms, Angiospermae or Magnoliophyta, are the most diverse group of land plants, with 64 orders, 416 families, approximately 13,164 known genera and c. 369,000 known species. Like gymnosperms, angiosperms are seed-producing plants. However, they are distinguished from gymnosperms by characteristics including flowers, endosperm within the seeds, and the production of fruits that contain the seeds. Etymologically, angiosperm means a plant that produces seeds within an enclosure; in other words, a fruiting plant. The term comes from the Greek words angeion and sperma ("seed").
Zygophyllaceae is a family, of flowering plants, that contain the bean-caper and caltrop. The family includes around 285 species in 22 genera.
Larrea divaricata, commonly known as chaparral, is a small evergreen bush in the family Zygophyllaceae. It is native to arid regions of South America, where it is known as jarilla or jarillo. It was first described in 1800 by the Spanish botanist Antonio José Cavanilles.
Larrea tridentata is known as creosote bush and greasewood as a plant, as chaparral as a medicinal herb, and as gobernadora in Mexico, Spanish for "governess", due to its ability to secure more water by inhibiting the growth of nearby plants. In Sonora, it is more commonly called hediondilla.
Cosmos is a genus, with the same common name of cosmos, consisting of flowering plants in the sunflower family.
Nyctaginaceae, the four o'clock family, is a family of around 33 genera and 290 species of flowering plants, widely distributed in tropical and subtropical regions, with a few representatives in temperate regions. The family has a unique fruit type, called an "anthocarp", and many genera have extremely large pollen grains.
Bulnesia arborea is a species of flowering plant in the creosote subfamily (Larreoideae) of family Zygophyllaceae. It is native to Colombia and Venezuela. Related to the true lignum vitae trees (Guaiacum), it is known as Maracaibo lignum vitae or as "verawood".
Pavonia is a genus of flowering plants in the mallow family, Malvaceae. The generic name honours Spanish botanist José Antonio Pavón Jiménez (1754–1844). Several species are known as swampmallows.
Carmona is a genus of flowering plants in the borage family, Boraginaceae. Members of the genus are commonly known as scorpionbush.
Ruellia is a genus of flowering plants commonly known as ruellias or wild petunias. They are not closely related to petunias (Petunia) although both genera belong to the same euasterid clade. The genus was named in honor of Jean Ruelle, herbalist and physician to Francis I of France and translator of several works of Dioscorides.
Kallstroemia is a genus of flowering plants in the caltrop family, Zygophyllaceae. The approximately 17 species it contains are native to tropical and warm temperate regions of the Americas. The flower and fruit morphology is similar to Tribulus. The convex fruits separate into about 10 nutlets each with one seed. The genus is named after A. Kallstroem who lived in the 18th century.
Bunchosia is a genus in the Malpighiaceae, a family of about 75 genera of flowering plants in the order Malpighiales. It contains roughly 75 species of trees and shrubs, which are native to dry woodlands, savannas, and wet forests. Their range extends from Mexico and the Caribbean to southeastern Brazil and adjacent Argentina. Bunchosia is one of three arborescent genera of Malpighiaceae with fleshy, bird-dispersed fruits.
Neoluederitzia is a genus of flowering plants in the caltrop family, Zygophyllaceae. The sole species is Neoluederitzia sericocarpa. It is endemic to Namibia. Its natural habitat is intermittent freshwater marshes.
Peucephyllum is a monotypic genus of flowering plants containing the single species Peucephyllum schottii. Its common names include pygmy cedar, Schott's pygmy cedar, desert fir, and desert pine. It is not a cedar, fir, or pine, but a member of the aster family, Asteraceae. It is a leafy evergreen shrub with glandular, resinous foliage. It flowers in yellow flower heads which have only disc florets. The fruits are woody, bristly seeds with a pappus. This plant is native to the deserts of Arizona, California, Nevada, and Utah in the United States and Baja California and Sonora in northern Mexico.
Lycium andersonii is a species of flowering plant in the nightshade family, Solanaceae. Its common names include water-jacket, redberry desert-thorn, Anderson thornbush, Anderson's desert thorn, Anderson boxthorn, Anderson lycium, Anderson wolfberry, and squawberry.
Krameria bicolor is a perennial shrub or subshrub of the family Krameriaceae, the rhatanies. It is commonly known as white rhatany, crimson-beak, and chacate in Spanish. It is found in drier environments of the southwestern United States from California to Texas, and in northern Mexico.
Creosote gall midges are a species of gall-inducing flies in the Asphondylia auripila group. This group consists of 15 closely related species of flies which inhabit creosote bush. They have partitioned the plant ecologically with different gall midge species inhabiting the leaves, stems, buds, and flowers of creosote bush. Each species induces a uniquely shaped gall but the insects are otherwise morphologically very similar and very difficult to tell apart. Their life cycle begins when the female oviposits into the part of the plant which her species prefers, she inserts her egg along with a fungal spore from a mycangia. A gall forms and the fungal mycelium grows to line the inside of the gall, when the egg hatches the developing larva feeds upon the fungus. Adult emergence is timed with periods of plant growth associated with winter, spring, or summer rain fall. In contrast to many other groups of plant-feeding insects the evolution of new species in the A. auripila group seems to be a result of colonizing new parts of the same plant and/or colonization of new seasons of plant growth.
Porlieria is a genus of flowering plants in the caltrop family, Zygophyllaceae. Species within this genus are shrubs or small trees of dry subtropical regions. The generic name honours Spanish ambassador Don Antonio Porlier de Baxamar.
Piscidia is a genus of flowering plants in subfamily Faboideae of the legume family, Fabaceae. The generic name is derived from the Latin words piscis, meaning "fish," and caedo, meaning "to kill." It refers to the use of extracts from the plant to poison fish.
Larreoideae is a subfamily of the flowering plant family Zygophyllaceae.
Balanites is a Afrotropical, Palearctic and Indomalayan genus of flowering plants in the caltrop family, Zygophyllaceae. The name Balanites derives from the Greek word for an acorn and refers to the fruit, it was coined by Alire Delile in 1813.
Darwiniana is a collection of essays by botanist Asa Gray. The articles both defended the theory of evolution from the standpoint of botany, and sought reconciliation with theology by arguing theistic evolution, that natural selection is not inconsistent with Christianity.
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