Rosales is an order of flowering plants. It is sister to a clade consisting of Fagales and Cucurbitales. It contains about 7,700 species, distributed into about 260 genera. Rosales comprise nine families, the type family being the rose family, Rosaceae. The largest of these families are Rosaceae (90/2500) and Urticaceae (54/2600). The order Rosales is divided into three clades that have never been assigned a taxonomic rank. The basal clade consists of the family Rosaceae; another clade consists of four families, including Rhamnaceae; and the third clade consists of the four urticalean families.
Rosaceae, the rose family, is a medium-sized family of flowering plants, including 4,828 known species in 91 genera.
A rose is a woody perennial flowering plant of the genus Rosa, in the family Rosaceae, or the flower it bears. There are over three hundred species and tens of thousands of cultivars. They form a group of plants that can be erect shrubs, climbing, or trailing, with stems that are often armed with sharp prickles. Their flowers vary in size and shape and are usually large and showy, in colours ranging from white through yellows and reds. Most species are native to Asia, with smaller numbers native to Europe, North America, and northwestern Africa. Species, cultivars and hybrids are all widely grown for their beauty and often are fragrant. Roses have acquired cultural significance in many societies. Rose plants range in size from compact, miniature roses, to climbers that can reach seven meters in height. Different species hybridize easily, and this has been used in the development of the wide range of garden roses.
Amygdaloideae is a subfamily within the flowering plant family Rosaceae. It was formerly considered by some authors to be separate from Rosaceae, and the family names Prunaceae and Amygdalaceae have been used. Reanalysis from 2007 has shown that the previous definition of subfamily Spiraeoideae was paraphyletic. To solve this problem, a larger subfamily was defined that includes the former Amygdaloideae, Spiraeoideae, and Maloideae. This subfamily, however, is to be called Amygdaloideae rather than Spiraeoideae under the International Code of Nomenclature for algae, fungi, and plants as updated in 2011.
Amelanchier, also known as shadbush, shadwood or shadblow, serviceberry or sarvisberry, juneberry, saskatoon, sugarplum, wild-plum or chuckley pear, is a genus of about 20 species of deciduous-leaved shrubs and small trees in the rose family (Rosaceae).
Malus is a genus of about 30–55 species of small deciduous trees or shrubs in the family Rosaceae, including the domesticated orchard apple – also known as the eating apple, cooking apple, or culinary apple. The other species are commonly known as crabapples, crab apples, crabtrees, wild apples, or rainberries.
Sorbus is a genus of over 100 species of trees and shrubs in the rose family, Rosaceae. Species of Sorbus (s.l.) are commonly known as whitebeam, rowan (mountain-ash) and service tree. The exact number of species is disputed depending on the circumscription of the genus, and also due to the number of apomictic microspecies, which some treat as distinct species, but others group in a smaller number of variable species. Recent treatments classify Sorbus in a narrower sense to include only the pinnate leaved species of subgenus Sorbus, raising several of the other subgenera to generic rank.
Potentilla erecta is a herbaceous perennial plant belonging to the rose family (Rosaceae).
Photinia is a genus of about 40–60 species of small trees and large shrubs, but the taxonomy has recently varied greatly, with the genera Heteromeles, Stranvaesia and Aronia sometimes included in Photinia.
Mespilus, commonly called medlar, is a monotypic genus of flowering plants in the family Rosaceae containing the single species Mespilus germanica of southwest Asia. It is also found in some countries in the Balkans, especially in Albanian regions. A second proposed species, Mespilus canescens, discovered in North America in 1990, proved to be a hybrid between M. germanica and one or more species of hawthorn, and is properly known as ×Crataemespilus canescens.
Purshia is a small genus of 5-8 species of flowering plants in the family Rosaceae, native to western North America, where they grow in dry climates from southeast British Columbia in Canada south throughout the western United States to northern Mexico. The classification of Purshia within the Rosaceae has been unclear. The genus was originally placed in the subfamily Rosoideae, but is now placed in subfamily Dryadoideae.
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.
Malus sylvestris, the European crab apple, is a species of the genus Malus, native to Europe. Its scientific name means "forest apple" and the truly wild tree has thorns.
Coastal Strand is a plant community of flowering plants that form along the shore in loose sand just above the high tide line, on the West Coast of the United States.
Coleogyne ramosissima or blackbrush, is a low lying, dark grayish-green, aromatic, spiny, perennial, soft wooded shrub, native to the deserts of the southwestern United States. It is called blackbrush because the gray branches darken when wet by rains. It is in the rose family (Rosaceae), and is the only species in the monotypic genus Coleogyne.
Mesembryanthemum cordifolium formerly known as Aptenia cordifolia is a species of succulent plant in the iceplant family. The common names of the plant include baby sun rose,. heart-leaf, red aptenia or aptenia in English, as well as rooi brakvygie or brakvygie in Afrikaans, and umjuluka, ibohlololo, or uncolozi omncane in isiZulu in South Africa. It is known as heartleaf iceplant in the USA British names may be heart-leaved aptenia or heart-leaved midday flower because, like many other representatives of the Aizoaceae, it opens its flowers only during the sunshine of the day. It is a creeping plant that forms a carpet of flat-growing perennial herbs in groups on the ground from a base. Genus name means middle-embryo flower in reference to the position of the ovary in the flower. The specific epithet is derived from Latin for heart-shaped leaves.
Malacomeles, or false serviceberry, is a genus of flowering plants in the Rosaceae. It is most closely related to Amelanchier, Peraphyllum, Crataegus, and Mespilus.
Potentilla diversifolia or Potentilla × diversifolia is a species of flowering plant in the Rose Family (Rosaceae) known by the common names varileaf cinquefoil, different-leaved cinquefoil, and mountain meadow cinquefoil.
The Maleae are the apple tribe in the rose family, Rosaceae. The group includes a number of plants bearing commercially important fruits, such as apples and pears, while others are cultivated as ornamentals. Older taxonomies separated some of this group as tribe Crataegeae, as the Cydonia group, or some genera were placed in family Quillajaceae.
Potentilla basaltica is a species of flowering plant in the rose family known by the common names Soldier Meadows cinquefoil and basalt cinquefoil. It is endemic to a small area of the Modoc Plateau and Warner Mountains in northeastern California and northwestern Nevada.
