Parkinsonia , also Cercidium , is a genus of flowering plants in the pea family, Fabaceae.
 It contains about 12 species that are native to semi-desert regions of Africa and the Americas.
 The name of the genus honors English apothecary and botanist John Parkinson (1567–1650).
Alisma is a genus of flowering plants in the family Alismataceae, members of which are commonly known as water-plantains.
 The genus consists of aquatic plants with leaves either floating or submerged, found in a variety of still water habitats around the world (nearly worldwide).
 The flowers are hermaphrodite, and are arranged in panicles, racemes, or umbels. "Alisma" flowers have six stamens, numerous free carpels in a single whorl, each with 1 ovule, and subventral styles.
 The fruit is an achene with a short beak.
The basal angiosperms are the flowering plants which diverged from the lineage leading to most flowering plants.
 In particular, the most basal angiosperms were called the ANITA grade which is made up of "Amborella" (a single species of shrub from New Caledonia), Nymphaeales (water lilies, together with some other aquatic plants) and Austrobaileyales (woody aromatic plants including star anise).
 ANITA stands for "Amborella", Nymphaeales and Illiciales, Trimeniaceae-"Austrobaileya".
 Some authors have shortened this to ANA-grade for the three orders, Amborellales, Nymphaeales, and Austrobaileyales, as the order Illiciales was reduced to the family Illiciaceae and placed, along with the family Trimeniaceae, within the Austrobaileyales.
Pterostylis diminuta, commonly known as the small-flowered leafy greenhood, is a plant in the orchid family Orchidaceae and is endemic to Victoria.
 As with similar greenhoods, the flowering plants differ from those which are not flowering.
 The non-flowering plants have a rosette of leaves flat on the ground but the flowering plants have up to twelve small, partly green, partly translucent flowers and lack a rosette.
Chloranthaceae is a family of flowering plants (angiosperms), the only family in the order Chloranthales.
 It is not closely related to any other family of flowering plants, and is among the early-diverging lineages in the angiosperms.
 They are woody or weakly woody plants occurring in Southeast Asia, the Pacific, Madagascar, Central and South America, and the West Indies.
 The family consists of four extant genera, totalling about 77 known species according to Christenhusz and Byng in 2016.
 Some species are used in traditional medicine.
 The type genus is "Chloranthus".
Pterostylis lineata, commonly known as the Blue Mountains leafy greenhood, is a plant in the orchid family Orchidaceae and is endemic to New South Wales.
 As with similar greenhoods, the flowering plants differ from those which are not flowering.
 The non-flowering plants have a rosette of leaves on a short stalk but the flowering plants lack a rosette and have up to seven dark green flowers with translucent "windows" on a flowering stem with stem leaves.
 The labellum is light brown with a black strip along its mid-line.
Pterostylis chocolatina, commonly known as the chocolate-lip leafy greenhood, is a plant in the orchid family Orchidaceae and is endemic to New South Wales.
 As with similar greenhoods, the flowering plants differ from those which are not flowering.
 The non-flowering plants have a rosette of leaves on a short stalk but the flowering plants lack a rosette and have up to thirteen green flowers on a flowering stem with stem leaves.
 The labellum is dark brown with a blackish lump near its base.
Pterostylis crassa, commonly known as the coarse leafy greenhood, is a plant in the orchid family Orchidaceae and is endemic to Victoria.
 As with similar greenhoods, the flowering plants differ from those which are not flowering.
 The non-flowering plants have a rosette of leaves on a short stalk but the flowering plants have up to four relatively large, shiny dark green translucent flowers on a flowering stem with stem leaves.
Pterostylis barringtonensis, commonly known as the Barrington leafy greenhood, is a plant in the orchid family Orchidaceae and is endemic to New South Wales.
 As with similar greenhoods, the flowering plants differ from those which are not flowering.
 The non-flowering plants have a rosette of leaves on a short stalk but the flowering plants lack a rosette and have up to seven dark green flowers on a flowering stem with stem leaves.
 It is only known from Barrington Tops National Park.
Austrobaileyales is an order of flowering plants, consisting of about 100 species of woody plants growing as trees, shrubs and lianas.
 Perhaps the most familiar species is "Illicium verum", from which comes the spice star anise.
 The order belongs to the group of basal angiosperms, the ANA grade, which diverged earlier from the remaining flowering plants, and, as such, it is the extant group after the Amborellales and Nymphaeales, that is sister to all remaining extant angiosperms outside of the ANA grade.
 The order includes just three families of flowering plants, the Austrobaileyaceae, a monotypic family containing the sole genus, "Austrobaileya scandens", a woody liana, the Schisandraceae, a family of trees, shrubs, or lianas containing essential oils, and the Trimeniaceae, essential oil-bearing trees and lianas.

Question: Do the flowering plants Alisma and Parkinsonia share the same family?
Answer: no