Question: Are Libocedrus and Helianthus both types of plants?

full_context: Document 1: Dacrydium: Dacrydium is a genus of conifers belonging to the podocarp family Podocarpaceae. Sixteen species of evergreen dioecious trees and shrubs are presently recognized. The genus was first described by Solander in 1786, and formerly included many more species, which were divided into sections A, B, and C by Florin in 1931. The revisions of de Laubenfels and Quinn (see references), reclassified the former section A as the new genus "Falcatifolium", divided Section C into new genera "Lepidothamnus, Lagarostrobos" and "Halocarpus", and retained Section B as genus "Dacrydium".
Document 2: Libocedrus: Libocedrus is a genus of five species of coniferous trees in the cypress family Cupressaceae, native to New Zealand and New Caledonia. The genus is closely related to the South American genera "Pilgerodendron" and "Austrocedrus", and the New Guinean genus "Papuacedrus", both of which are included within "Libocedrus" by some botanists. These genera are rather similar to the Northern Hemisphere genera "Calocedrus" and "Thuja": in earlier days, what is now "Calocedrus" was sometimes included in "Libocedrus". They are much less closely related, as recently confirmed (Gadek et al. 2000). The generic name means "teardrop cedar", apparently referring to drops of resin.
Document 3: Sunflower seed: The sunflower seed is the fruit of the sunflower ("Helianthus annuus"). There are three types of commonly used sunflower seeds: linoleic (most common), high oleic, and NuSun developed for sunflower oil. Each variety has its own unique levels of monounsaturated, saturated, and polyunsaturated fats. The information in this article refers mainly to the linoleic variety.
Document 4: Austrocedrus: Austrocedrus is a genus of conifer belonging to the cypress family Cupressaceae. It has only one species, Austrocedrus chilensis, native to the Valdivian temperate rain forests and the adjacent drier steppe-forests of central-southern Chile and western Argentina from 33°S to 44°S latitude. It is known in its native area as ciprés de la cordillera or cordilleran cypress, and elsewhere by the scientific name as Austrocedrus, or sometimes as Chilean incense-cedar or Chilean cedar. The generic name means "southern cedar".
Document 5: Thuja plicata: Thuja plicata, commonly called western or Pacific redcedar, giant or western arborvitae, giant cedar, or shinglewood, is a species of "Thuja", an evergreen coniferous tree in the cypress family Cupressaceae native to western North America. It is not a true cedar of the genus "Cedrus".
Document 6: Sunflower (disambiguation): Sunflower ("Helianthus") is a genus of annual flowering plants native to North America.
Document 7: 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 8: Helianthus californicus: Helianthus californicus is a North American species of sunflower known by the common name California sunflower. It is native to California in the United States and Baja California in Mexico, where it grows in many types of habitats.
Document 9: Helianthus anomalus: Helianthus anomalus (Western sunflower) is a species of plants in the sunflower family, found in the southwestern United States.
Document 10: Echinacea: Echinacea is a genus, or group of herbaceous flowering plants in the daisy family. The "Echinacea" genus has nine species, which are commonly called purple coneflowers. They are found only in eastern and central North America, where they are found growing in moist to dry prairies and open wooded areas. They have large, showy heads of composite flowers, blooming from early to late summer. The generic name is derived from the Greek word ἐχῖνος ("ekhinos"), meaning "hedgehog," due to the spiny central disk. These flowering plants and their parts have different uses. Some species are cultivated in gardens for their showy flowers. "Echinacea purpurea" is used in folk medicine. Two of the species, "E. tennesseensis" and "E. laevigata", are listed in the United States as endangered species.
Document 11: Helianthus schweinitzii: Helianthus schweinitzii, known by the common name Schweinitz's sunflower, is a perennial wildflower endemic to the Piedmont physiographic province of North Carolina and South Carolina. It is classified in the Sunflower Family (Asteraceae). Nationwide it is one of the rarest species of sunflower in the United States, but within its range it is not uncommon along utility and highway rights-of-way in North Carolina and South Carolina. There are only about 90 known populations, many containing less than 40 plants each. It was listed as a federal endangered species on May 7, 1991.
Document 12: Helianthus eggertii: Helianthus eggertii, known as Eggert's sunflower, is a North American species of flowering plants in the sunflower family. It is native to Tennessee, Kentucky, South Carolina, and Alabama. It is best known as one of the few plants to have been delisted under the Endangered Species Act because of the species' recovery. It was described by John Kunkel Small in 1903.
Document 13: Calocedrus: Calocedrus (common name incense cedar, alternatively spelled incense-cedar) is a genus of coniferous trees in the cypress family Cupressaceae first described as a genus in 1873. It is native to eastern Asia and western North America.
Document 14: Nothofagus: Nothofagus, also known as the southern beeches, is a genus of 43 species of trees and shrubs native to the Southern Hemisphere in southern South America (Chile, Argentina) and Australasia (east and southeast Australia, New Zealand, New Guinea and New Caledonia). The species are ecological dominants in many temperate forests in these regions. Some species are reportedly naturalised in Germany and Great Britain. The genus has a rich fossil record of leaves, cupules and pollen, with fossils extending into the late Cretaceous and occurring in Australia, New Zealand, Antarctica and South America. In the past, they were included in the family Fagaceae, but genetic tests revealed them to be genetically distinct, and they are now included in their own family, the Nothofagaceae (literally meaning "false beeches" or "bastard beeches").
Document 15: Calocedrus huashanensis: Calocedrus huashanensis is an extinct incense-cedar species in the family Cupressaceae described from a group of isolated foliage fossils including stems and leaves. The species is known from Oligocene sediments exposed in the Guangxi Zhuang Autonomous Region, China. It is one of a number of extinct species placed in the living genus "Calocedrus".
ground_truth: yes