Question: Are Sorghastrum and Calocedrus both a genus of grass

full_context: Document 1: Sorghastrum nutans: Sorghastrum nutans, commonly known as either Indiangrass or yellow Indiangrass, is a North American prairie grass found in the central and eastern United States and Canada, especially in the Great Plains and tallgrass prairies.
Document 2: 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 3: Sorghastrum: Sorghastrum is a genus of grasses, native to Africa and the Americas.
Document 4: Sorghastrum secundum: Sorghastrum secundum is a species of grass known by the common name lopsided Indiangrass. It is native to the southeastern United States.
Document 5: Schizachyrium scoparium: Schizachyrium scoparium, commonly known as little bluestem or beard grass, is a North American prairie grass native to most of the United States, except California, Nevada, and Oregon, and a small area north of the Canada–US border. Its greatest manifestation has always been in the Midwestern prairies. Little bluestem is a perennial bunchgrass and is prominent in tallgrass prairie, along with big bluestem ("Andropogon gerardi"), indiangrass ("Sorghastrum nutans") and switchgrass ("Panicum virgatum"). It is a warm-season species, meaning it employs the C photosynthetic pathway.
Document 6: 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".
Document 7: 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 8: Sorghum bicolor: Sorghum bicolor, commonly called sorghum ( ) and also known as great millet, durra, jowari, or milo, is a grass species cultivated for its grain, which is used for food, both for animals and humans, and for ethanol production. Sorghum originated in northern Africa, and is now cultivated widely in tropical and subtropical regions. Sorghum is the world's fifth most important cereal crop after rice, wheat, maize and barley. "S. bicolor" is typically an annual, but some cultivars are perennial. It grows in clumps that may reach over 4 m high. The grain is small, ranging from 2 to 4 mm in diameter. Sweet sorghums are sorghum cultivars that are primarily grown for foliage, syrup production, and ethanol; they are taller than those grown for grain.
Document 9: Fir: Firs (Abies) are a genus of 48–56 species of evergreen coniferous trees in the family Pinaceae. They are found through much of North and Central America, Europe, Asia, and North Africa, occurring in mountains over most of the range. Firs are most closely related to the genus "Cedrus" (cedar). Douglas firs are not true firs, being of the genus "Pseudotsuga".
Document 10: 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 11: 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 12: Nepalese sorghum: Sorghum (Sorghum bicolor) comes from the Latin name “Syrucum (granum)” which means “grain of Syria” however it originated in eastern Africa. Sorghum is an important species of the grass family, Paceae, and is considered the world’s fifth most important cereal crop. There are many diverse and wild types of Sorghum, however there are seven basic races, the most common in Asia are Durra and Sballu. Sorghum is an important staple crop for more than 500 million people in sub-Saharan Africa and South Asia, including many people in Nepal. Sorghum is grown on more than 48 ha area around the world. In statistics collected from 1992-1994 about general millet, Nepal had an area of 0.21 million ha, with a yield rate of 1.14 (t/ha), and produced around 0.24 million tons of Sorghum. The entirety of the crop is highly valued, both the grain and the stem are very useful. Sorghum can be cooked in many different ways for food with a high nutritional content, among many other uses. Overall Sorghum is a very important crop worldwide.
Document 13: Cedrus: Cedrus (common English name cedar) is a genus of coniferous trees in the plant family Pinaceae. They are native to the mountains of the western Himalayas and the Mediterranean region, occurring at altitudes of 1,500–3,200 m in the Himalayas and 1,000–2,200 m in the Mediterranean.
Document 14: Chamaecyparis: Chamaecyparis, common names cypress or false cypress (to distinguish it from related cypresses), is a genus of conifers in the cypress family Cupressaceae, native to eastern Asia (Japan + Taiwan) and to the western and eastern margins of the United States. The name is derived from the Greek "khamai", meaning ground, and "kuparissos" for cypress.
Document 15: Sorghum × drummondii: Sorghum" × "drummondii (Sudangrass), is a hybrid-derived species of grass raised for forage and grain, native to tropical and subtropical regions of Eastern Africa. The plant is cultivated in Southern Europe, South America, Central America, North America and Southern Asia, for forage or as a cover crop.
ground_truth: no