Question: Are Cynara and Piptanthus both flowering plants?

full_context: Document 1: Piptanthus: Piptanthus is a genus of flowering plants in the legume family, Fabaceae, and the subfamily Faboideae.
Document 2: Gundelia: Gundelia is a low to high (20–100 cm) thistle-like perennial herbaceous plant with latex, spiny compound inflorescences, reminiscent of teasles and eryngos, that contain cream, yellow, greenish, pink, purple or redish-purple disk florets. It is assigned to the daisy family. Flowers can be found from February to May. The stems of this plant dry-out when the seeds are ripe and break free from the underground root, and are then blown away like a tumbleweed, thus spreading the seeds effectively over large areas with little standing vegetation. This plant is native to the eastern Mediterranean and the Middle-East. Opinions differ about the number of species in "Gundelia". Sometimes the genus is regarded monotypic, Gundelia tournefortii being a species with a large variability, but other authors distinguish up to nine species, differing in floret color and pubescence. Young stems are cooked and eaten in the Middle-East and are said to taste like a combination of artichoke and asparagus. The plant also contains compounds that have been demonstrated to be effective against a range of ailments. A large quantity of pollen assigned to "Gundelia" has been found on the Shroud of Turin, which may suggest that the crown of thorns was made from "Gundelia", but this finding has been contested.
Document 3: Cynara: Cynara is a genus of thistle-like perennial plants in the sunflower family. They are native to the Mediterranean region, the Middle East, northwestern Africa, and the Canary Islands. The genus name comes from the Greek "kynara", which means "artichoke".
Document 4: Helianthus: Helianthus or sunflower (from the Greek: ήλιος , "Hēlios", "sun" and ανθός , "anthos", "flower") L. is a genus of plants comprising about 70 species in the family Asteraceae. The genus is one of many in the Asteraceae that are known as sunflowers. Except for three species in South America, all "Helianthus" species are native to North America. The common name, "sunflower", typically refers to the popular annual species "Helianthus annuus", or the common sunflower, whose round flower heads in combination with the ligules look like the sun. This and other species, notably Jerusalem artichoke ("H. tuberosus"), are cultivated in temperate regions and some tropical regions as food crops for humans, cattle, poultry and ornamental plants. The largest sunflower field is located in Tuscany, Italy.
Document 5: Pongamia: Pongamia is a genus of legume in the Fabaceae family. Recently it has been proposed that the genus "Pongamia" be rejected in favor of the genus "Millettia", and many species have been reclassified. Due to recent interest in biofuels, Pongamia is often the generic name given for "Millettia pinnata", a tree being explored for producing biodiesel.
Document 6: Carduus: Carduus is a genus of flowering plants in the aster family, Asteraceae, and the tribe Cynareae, one of two genera considered to be true thistles, the other being "Cirsium". Plants of the genus are known commonly as plumeless thistles. They are native to Eurasia and Africa, and several are known elsewhere as introduced species. This genus is noted for its disproportionately high number of noxious weeds compared to other flowering plant genera.
Document 7: Arachis: Arachis is a genus of about 70 species of annual and perennial flowering plants in the pea family (Fabaceae), native to South America, and was recently assigned to the informal monophyletic "Pterocarpus" clade of the Dalbergieae. At least one species, the peanut ("Arachis hypogaea"), is a major food crop species of global importance; some of the other species are cultivated for food to a small extent in South America. Other species such as "A. pintoi" are cultivated worldwide as forage and soil conditioner plants, with the leaves providing high-protein feed for grazing livestock and a nitrogen source in agroforestry and permaculture systems.
Document 8: Pithecellobium: Pithecellobium is a genus of flowering plants in the legume family, Fabaceae. The generic name is derived from the Greek words πιθηκος ("pithekos"), meaning "ape" or "monkey," and ελλοβιον ("ellobion"), meaning "earring," which refers to the coiled shape of the fruit pods. Plants of the genus are known generally as blackbeads.
Document 9: Carduus argentatus: Carduus argentatus, sometimes known as the silver thistle, is an annual herb in the family Asteraceae. As a member of the genus "Carduus" it is known as a plumeless thistle. It is found throughout the Mediterranean and Middle East. Frequently growing in disturbed habitats, it is often found in sandy and stony desert wadis. It is found in the eastern deserts of Egypt, through the East Mediterranean region and into Iraq, Pakistan and Afghanistan. It can be found growing in open woodlands and shrublands, on steppes and semi-steppes as well as in extreme desert conditions. It grows among mountain vegetation on Mount Hermon in the Golan Heights. In Crete it is found at altitudes of up to 1400 m .
Document 10: Cynareae: The Cynareae are a tribe of flowering plants in the daisy family (Asteraceae) and the subfamily Carduoideae. Most of them are commonly known as thistles; four of the best known genera are "Carduus", "Cynara" (containing the widely eaten artichoke), "Cirsium", and "Onopordum".
Document 11: Vicia: Vicia is a genus of about 140 species of flowering plants that are part of the legume family (Fabaceae), and which are commonly known as vetches. Member species are native to Europe, North America, South America, Asia and Africa. Some other genera of their subfamily Faboideae also have names containing "vetch", for example the vetchlings ("Lathyrus") or the milk-vetches ("Astragalus"). The broad bean ("Vicia faba") is sometimes separated in a monotypic genus "Faba"; although not often used today, it is of historical importance in plant taxonomy as the namesake of the order Fabales, the Fabaceae and the Faboideae. The tribe Vicieae in which the vetches are placed is named after the genus' current name. Among the closest living relatives of vetches are the lentils ("Lens") and the true peas ("Pisum").
Document 12: Micromeria: Micromeria is a genus of flowering plants in the mint family, Lamiaceae, widespread across Europe, Asia, Africa, and North America, with a center of diversity in the Mediterranean region and the Canary Islands. It is sometimes placed within the genus "Satureja". The name is derived from the Greek words
Document 13: Pitcairnioideae: The Pitcairnioideae comprise the terrestrial subfamily of the bromeliads (Bromeliaceae) with over 1000 species in 16 genera. Unlike the many epiphytes and lithophytes which make up the rest of the family, with a few exceptions, all of the members of this subfamily are either terrestrial or saxicolous. Common to arid and high-altitude regions, this subfamily is considered to have the most ancient lineage, more closely resembling its grassy relatives than the exotic novelties represented in the other two subfamilies. The commonly cultivated genera from this group include "Dyckia", "Hechtia", "Pitcairnia", and "Puya".
Document 14: Fabaceae: The Fabaceae or Papilionoideae, commonly known as the legume, pea, or bean family, is a large and economically important family of flowering plants. It includes trees, shrubs, and perennial or annual herbaceous plants, which are easily recognized by their fruit (legume) and their compound, stipulated leaves. Many legumes have characteristics of flowers and fruits. The family is widely distributed, and is the third-largest land plant family in terms of number of species, behind only the Orchidaceae and Asteraceae, with about 751 genera and some 19,000 known species. The five largest of the genera are "Astragalus" (over 3,000 species), "Acacia" (over 1000 species), "Indigofera" (around 700 species), "Crotalaria" (around 700 species) and "Mimosa" (around 500 species), which constitute about a quarter of all legume species. The ca. 19,000 known legume species amount to about 7% of flowering plant species. Fabaceae is the most common family found in tropical rainforests and in dry forests in the Americas and Africa.
Document 15: Centaurea: Centaurea ( ) is a genus of between 350 and 600 species of herbaceous thistle-like flowering plants in the family Asteraceae. Members of the genus are found only north of the equator, mostly in the Eastern Hemisphere; the Middle East and surrounding regions are particularly species-rich. Common names for this genus are centaury, centory, starthistles, knapweeds, centaureas and the more ambiguous "bluets"; a vernacular name used for these plants in parts of England is "loggerheads" (common knapweed). The "Plectocephalus" group – possibly a distinct genus – is known as basketflowers. "Cornflowers" is used for a few species, but that term more often specifically means "C. cyanus" (sometimes also called "basket flower"). The common name "centaury" is sometimes used, although this also refers to the unrelated plant genus "Centaurium".
ground_truth: no