H Euphorbia laurifolia Juss. ex Lam. is an accepted name. This name is the accepted name of a species in the genus Euphorbia (family Euphorbiaceae). Euphorbia laurifolia is the name of a species, part of the genus Euphorbia. This species has been described by Juss. ex Lam. under the rules of the International . Family: Euphorbiaceae Juss. Genus: Euphorbia L. Euphorbia laurifolia Juss. ex Lam. This species is accepted, and its native range is W. South America to NW.
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All flowers in the Euphorbiaceae are unisexual either male or female onlyand they are often very small in size.
Tree-like plant Prostrate herb Candelabriform tree. The number and forms of involucral glands as well as gland appendages varies enormously as shown by these examples below.
Five glands Six glands with petaloid appendages Fused glands, ring-shaped.
Whereas most other large genera of plants differ in features of the flowers themselves, Euphorbia varies instead in features of the cyathium, which can show amazing modifications in different groups within the genus.
This feature is present in every species of the genus but nowhere else in the plant kingdom. Digital art and illustrations: About the genus Euphofbia. In other cases, such as E.
Other common names in Euphorbia Threre are many local names for particular species of Euphorbia. Cyathia can differ widely in the presence of associated bracts or cyathophylls.
What makes a Euphorbia Origin of the cyathium Fruits and seeds Diversity of life forms Uses and toxicity Systematics and classification The botanical name Euphorbia Common names.
Euphorbia laurifolia Juss. ex Lam.
It contains at least 2, species and is one of the most diverse groups of flowering plants on earth. Origin of the botanical Latin name Euphorbia. The variety of habits or life forms is one of the most salient features of Euphorbia. The main uses of spurges lautifolia horticultural.
Compounds known as terpene esters are common and often account for the extremely caustic and irritating properties of the milky sap, either by direct contact with the skin or even by exposure to the air and inflammation of the eyes or mucous membranes.
Euphorbia laurifolia Juss. ex Lam. | Plants of the World Online | Kew Science
Succulent euphorbias are most diverse in southern and eastern Africa and Madagascar, but they also occur in tropical Asia and the Americas. Seeds of some species have a fleshy appendage called the caruncle above the point of attachment to the central column of the fruit. Euphorbia tithymaloides is an American native that is widely grown in warm climates worldwide. Fused glands, u-shaped Single gland Single gland. From this kind of precursor, the cyathium was presumably formed by a strong condensation euphorbbia the inflorescence into its current involucres.
Exploring the organ-flower-inflorescence boundary.
Generally there is a single female flower in the center consisting of a pedicel, a three-parted ovary, and no petals or sepals associated with it. The colorized scanning electron micrograph on the right is reproduced here with permission of the American Journal of Botany. There are many herbaceous spurges, especially in temperate laurifllia worldwide, but the genus is best known for its many succulent species, some of which appear very similar to cacti.
There is a wide variety of chemical compounds present in Euphorbia sap, and some of them are toxic and potentially carcinogenic. Inside the involucre are the flowers, usually with a number of extremely simplified male laurifolja consisting of a single anther, filament, and pedicel.
A large portion of euphorbias, however, are succulent, with thickened, photosynthetic stems and very ephemeral leaves if present at all. Many succulents are in turn thorny, and some have well developed underground tubers.
Tropicos | Name – Euphorbia laurifolia Juss. ex Lam.
The Pencil tree of Milk lauifolia E. At its simplest, in a number of species in the Chamaescyce lineage, the plant will germinate, dichotomously branch, flower, fruit, and die in a matter of weeks.
The most current information places Euphorbia species into four distinct monophyletic groups or clades. The most surprising suggestion from the Prenner and Lurifolia studies is that the cyathium is neither a flower nor an inflorescence, but rather a “hybrid” in which regulatory genes that normally control features of individual flowers have overlapped into the inflorescence itself.
The implications of this finding for understanding the evolution of Euphorbia are significant, and further understanding the phylogenetic relationships within subgenus Esula may help us understand where and how the genus evolved and spread to its current worldwide distribution.
Some other names used for different species of Euphorbia include “Snow-on-the-mountian”, “Medusa’s head”, “Mexican fire plant”, and “Scarlet lautifolia. Euphorbia cotinifolia and E.
In Euphorbiathe flowers are reduced even more and then aggregated into an inflorescence or cluster of flowers known as a “cyathium” plural cyathia. Many of the herbaceous, leafy species of Euphorbia are commonly called “spurges. Cyathia are often aggregated into more complex units synflorescencesusually based on an inflorescence model called a cyme or an umbel. Many of the species are known as “spurges. The milky sap or latex of spurges is suggested to have a protective and defensive role in helping heal wounds and in euphorvia potential plant-eaters.
Euphorbia laurifolia Lam.
They track the origin of Euphorbia to relatives from the Old World Australia, New Caledonia, Africa, and Madagascar and conclude that the cyathium evolved from a more open grouping of flowers called a thyrse, with a terminal female flower surrounded by cymes of male flowers. Since euphorbus also means “good fodder” or well-fed in Greek, there is also some speculation that Juba coined the name because both the plant and his physician were of rather fleshy constitution.
Red Cyathophylls Red bracteate leaves and cyathophylls Green cyathophylls White bracteate leaves. Medusoid succulent herb Shrub with pencil-like branches Sphaeroid succulent plant. Fruits of Euphorbia are capsules that typically split open explosively euphorboa ripe.