| Petiveriaceae | |
|---|---|
 | |
| Rivina humilis | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Petiveriaceae C.Agardh [1] |
| Genera | |
| Synonyms | |
| |
Petiveriaceae is a family of flowering plants formerly included as subfamily Rivinoideae in Phytolaccaceae. The family comprises nine genera, with about 20 known species. [2]
Petiveriaceae includes the following genera: [3]
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Ceratophyllaceae is a cosmopolitan family of flowering plants including one living genus commonly found in ponds, marshes, and quiet streams in tropical and in temperate regions. It is the only extant family in the order Ceratophyllales. Species are commonly called coontails or hornworts, although hornwort is also used for unrelated plants of the division Anthocerotophyta.
Gunneraceae is a family of flowering plants, closely related to Myrothamnaceae, together forming the order Gunnerales. Such a family has been recognized by most taxonomists. Gunneraceae consists of the single genus Gunnera with 63 known species.
Nyssaceae is a family of flowering trees sometimes included in the dogwood family (Cornaceae). Nyssaceae is composed of 37 known species in the following five genera:
Petrosaviaceae is a family of flowering plants belonging to a monotypic order, Petrosaviales. Petrosaviales are monocots, and are grouped within the lilioid monocots. Petrosaviales are a very small order of photosynthetic (Japonolirion) and rare leafless achlorophyllous, mycoheterotrophic plants (Petrosavia) found in dark montane rainforests in Japan, China, Southeast Asia and Borneo. They are characterised by having bracteate racemes, pedicellate flowers, six persistent tepals, septal nectaries, three almost distinct carpels, simultaneous microsporogenesis, monosulcate pollen, and follicular fruit.
Nartheciaceae is a family of flowering plants. The APG III system places it in the order Dioscoreales, in the clade monocots. As circumscribed by APG IV (2016) it includes 35 species of herbaceous plants in the following five genera:
Basellaceae is a family of flowering plants, in the order Caryophyllales in the clade core eudicots, according to the Angiosperm Phylogeny Group. The family comprises ca 19 known species of herbaceous plants, some with climbing habits, in four genera:
The Calycanthaceae are a small family of flowering plants in the order Laurales. The family contains three genera and only 10 known species, restricted to warm temperate and tropical regions:
Hypoxidaceae is a family of flowering plants, placed in the order Asparagales of the monocots.
Dichapetalaceae is a family of flowering plants, consisting of 3 genera and about 170 species. Members of this family are trees, shrubs or lianas found in tropical and subtropical regions of the world.
Erythroxylaceae is a family of flowering trees and shrubs consisting of 4 genera and 271 species. The four genera are AneulophusBenth., ErythroxylumP.Browne, NectaropetalumEngl., and PinacopodiumExell & Mendonça. The best-known species are the coca plants, including the species Erythroxylum coca, the source of the drug cocaine.
The Achatocarpaceae are a family of woody flowering plants consisting of two genera and 11 known species, and has been recognized by most taxonomists. The family is found from the southwestern United States south to tropical and subtropical South America.
Dasypogonaceae is a family of flowering plants, one that has not been commonly recognized by taxonomists; the plants it contains were usually included in the family Xanthorrhoeaceae. If valid, Dasypogonaceae includes four genera with 16 species.
Boryaceae is a family of highly drought-tolerant flowering plants native to Australia, placed in the order Asparagales of the monocots. The family includes two genera, with twelve species in total in Australia.
Tecophilaeaceae is a family of flowering plants, placed in the order Asparagales of the monocots. It consists of nine genera with a total of 27 species.
Phytolaccaceae is a family of flowering plants. Though almost universally recognized by taxonomists, its circumscription has varied. It is also known as the Pokeweed family.
Caryophyllales is a diverse and heterogeneous order of flowering plants that includes the cacti, carnations, amaranths, ice plants, beets, and many carnivorous plants. Many members are succulent, having fleshy stems or leaves. The betalain pigments are unique in plants of this order and occur in all its families with the exception of Caryophyllaceae and Molluginaceae.
The Neuradaceae are a family of flowering plant, comprising three genera — Grielum, Neurada and Neuradopsis — totalling ten known species.
Huaceae is a family of plant in the rosids group, which has been classed in the orders Malpighiales, Malvales, and Violales or in its own order Huales. The APG II system placed it in the clade eurosids I, whereas the APG III system of 2009 and APG IV (2016) place it within the Oxalidales. The family is endemic to central Africa. It contains four species in the following two genera:
Calophyllaceae is a family of flowering plants in the order Malpighiales and is recognized by the APG III system of classification. Most of the 14 genera and 475 species included in this family were previously recognized in the tribe Calophylleae of the family Clusiaceae. The Angiosperm Phylogeny Group determined that splitting this clade of genera off into their own family was necessary.
Metteniusaceae are a family of flowering plants, the only family in the order Metteniusales. It consists of about 10 genera and 50 species of trees, shrubs, and lianas, primarily of the tropics. The family was formerly restricted to just Metteniusa, but it is now expanded with a number of genera that were formerly placed in the widely polyphyletic Icacinaceae.
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