Euphorbia is a very large and diverse genus of flowering plants, commonly called spurge, in the family Euphorbiaceae. "Euphorbia" is sometimes used in ordinary English to collectively refer to all members of Euphorbiaceae, not just to members of the genus.
The stamen is the pollen-producing reproductive organ of a flower. Collectively, the stamens form the androecium.
Gynoecium is most commonly used as a collective term for the parts of a flower that produce ovules and ultimately develop into the fruit and seeds. The gynoecium is the innermost whorl of a flower; it consists of pistils and is typically surrounded by the pollen-producing reproductive organs, the stamens, collectively called the androecium. The gynoecium is often referred to as the "female" portion of the flower, although rather than directly producing female gametes, the gynoecium produces megaspores, each of which develops into a female gametophyte which then produces egg cells.
Euphorbia albomarginata, whitemargin sandmat or rattlesnake weed, is a small low-growing perennial, in the spurge family native to desert, chaparral, and grassland habitats of southwestern North America, from southern and central California to Northern Mexico and Louisiana.
A cyathium is one of the specialised pseudanthia forming the inflorescence of plants in the genus Euphorbia (Euphorbiaceae). A cyathium consists of:
Acalypha rhomboidea is a plant in the spurge family, Euphorbiaceae.
Pogonotium was a dioecious genus of flowering plant in the palm family found in Malaysia and Borneo. Its species are now included within the genus Calamus. Its close relatives are climbing rattans and while partially armed with climbing apparatus, its habit is sprawling and leaning but not effective climbing. The reduced inflorescence nestled between the auricles is unusual and distinguishes it from similar relatives like Calamus, Daemonorops and Ceratolobus. The name is Greek meaning "bearded".
Retispatha is a rare, monotypic genus of flowering plant in the palm family endemic to Borneo, where the sole species, Retispatha dumetosa, is known as wi tebu bruang or 'the bear's sugar cane'. The name combines Latin and Greek words meaning 'network' and 'spathe', and the species epithet means 'bushy'. While classified with other rattans, they retain only superficial climbing organs; they sprawl and lean but are not true climbers.
This glossary of botanical terms is a list of definitions of terms and concepts relevant to botany and plants in general. Terms of plant morphology are included here as well as at the more specific Glossary of plant morphology and Glossary of leaf morphology. For other related terms, see Glossary of phytopathology, Glossary of lichen terms, and List of Latin and Greek words commonly used in systematic names.
Euphorbiaceae, the spurge family, is a large family of flowering plants. In English, they are also commonly called euphorbias, which is also the name of the type genus of the family. Most spurges, such as Euphorbia paralias, are herbs, but some, especially in the tropics, are shrubs or trees, such as Hevea brasiliensis. Some, such as Euphorbia canariensis, are succulent and resemble cacti because of convergent evolution. This family has a cosmopolitan global distribution. The greatest diversity of species is in the tropics; however, the Euphorbiaceae also have many species in nontropical areas of all continents except Antarctica.
Euphorbia fendleri is a species of Euphorbia known by the common name Fendler's sandmat. It is native to much of the southwestern and central United States and northern Mexico, where it grows in scrub and woodland habitat in desert and plateau regions. This is a mat- or clump-forming reddish-green plant with a crooked, creeping, hairless stem. The leaves are rounded, oval, or spade-shaped, smooth along the edges and generally coming to a point, and not much more than one centimeter in maximum length. The tiny inflorescence is a cyathium with white-edged, scalloped appendages surrounding the actual flowers. There is a ring of 25 to 35 staminate flowers around one pistillate flower. The ovary of the pistillate flower enlarges into a lobed fruit about 2 millimeters long.
Euphorbia micromera is a species of flowering plant in the family Euphorbiaceae. It is known by the common name Sonoran sandmat. It is native to the southwestern United States from California to Texas, and northern Mexico, where it grows in sandy soils in desert and other dry habitat. It is an annual herb forming a small mat of slender stems. The hairy to hairless leaves are oblong in shape and just a few millimeters long. The tiny inflorescence is a cyathium less than a millimeter wide. It lacks the appendages that many similar species have in their cyathia. It has only a central female flower and 2 to 5 male flowers surrounded by round red nectar glands. The fruit is a minute round capsule.
Euphorbia nutans is a species of Euphorbia known by the common names eyebane and nodding spurge. It is native to much of the United States, Eastern Canada, Mexico, Central America, the Caribbean, and Venezuela.
Euphorbia schizoloba is a species of euphorb known by the common name Mojave spurge. It is native to the southwestern United States, where it grows in desert hills and mountains. It is a perennial herb producing upright stems up to 40 centimeters tall, sometimes with coats of sparse hairs. The stems are lined with alternately arranged leaves which are oval with pointed tips and measure up to 2 centimeters in length. The inflorescence is a cyathium with bell-shaped bracts surrounding four tiny glands with flat, fringed appendages. At the center of this arrangement are several staminate flowers and one long pistillate flower.
Poranthereae is a tribe in the plant family Phyllanthaceae. It is one of ten tribes in the family, and one of four tribes in the subfamily Phyllanthoideae. Poranthereae comprises about 111 species, distributed into eight genera. The largest genera and the number of species in each are Actephila (31), Meineckia (30), and Andrachne (22).
A floral formula is a notation for representing the structure of particular types of flowers. Such notations use numbers, letters and various symbols to convey significant information in a compact form. They may represent the floral form of a particular species, or may be generalized to characterize higher taxa, usually giving ranges of numbers of organs. Floral formulae are one of the two ways of describing flower structure developed during the 19th century, the other being floral diagrams. The format of floral formulae differs according to the tastes of particular authors and periods, yet they tend to convey the same information.
Euphorbia psammogeton, commonly known as sand spurge, is a flowering plant in the family Euphorbiaceae. The specific epithet derives from the Greek psammos (“sand”) and geiton (“neighbour”), alluding to the typical habitat.
Acalypha gracilens is a species of flowering plant in the family Euphorbiaceae. Common names include slender threeseed mercury; three-seeded mercury; shortstalk copperleaf; slender copperleaf. It is native to the south-eastern United States.
Euphorbia missurica, commonly called prairie sandmat, or Missouri spurge, is a species of flowering plant in the spurge family (Euphorbiaceae). It is native to North America, where it is found primarily in area of the Great Plains. Its natural habitat is in dry, often calcareous areas, including glades, bluffs, and open woodlands.
Quercus subgenus Quercus is one of the two subgenera into which the genus Quercus was divided in a 2017 classification. It contains about 190 species divided among five sections. It may be called the New World clade or the high-latitude clade; most species are native to the Americas, the others being found in Eurasia and northernmost North Africa.
