Cycads are seed plants that typically have a stout and woody (ligneous) trunk with a crown of large, hard, stiff, evergreen and (usually) pinnate leaves. The species are dioecious, that is, individual plants of a species are either male or female. Cycads vary in size from having trunks only a few centimeters to several meters tall. They typically grow very slowly and live very long. Because of their superficial resemblance, they are sometimes mistaken for palms or ferns, but they are not closely related to either group.
Cycas is a genus of cycad, and the only genus in the family Cycadaceae. About 113 species are accepted, which are native to the Indo-Pacific, East Africa and Madagascar. Cycas circinalis, a species endemic to India, was the first cycad species to be described in western literature, and is the type species of the genus. The best-known Cycas species is Cycas revoluta.
Cycas revoluta is a species of gymnosperm in the family Cycadaceae, native to southern Japan including the Ryukyu Islands. It is one of several species used for the production of sago, as well as an ornamental plant. The sago cycad can be distinguished by a thick coat of fibers on its trunk. The sago cycad is sometimes mistakenly thought to be a palm, although the only similarity between the two is that they look similar and both produce seeds.
Oncomelania hupensis is a species of very small tropical freshwater snail, an aquatic gastropod mollusk in the family Pomatiopsidae.
Houttuynia cordata, also known as fish mint, fish leaf, rainbow plant, chameleon plant, heart leaf, fish wort, or Chinese lizard tail, is one of two species in the genus Houttuynia. It is a flowering plant native to Southeast Asia. It grows in moist, shady locations. It was named after Martinus Houttuyn.
Szechuanosaurus is an extinct genus of carnivorous theropod dinosaur from the Late Jurassic. Fossils referred to the genus have been found in China, Asia in the Oxfordian-?Tithonian. Its type species is based on several undiagnostic teeth from the Kuangyuan Series. Additional possible specimens of Szechuanosaurus were also reported from the Kalaza Formation, also located in China.
Cycas bifida is a species of cycad plant in the genus Cycas, native to southern China, and northern Vietnam.
Huanghetitan, is a genus of sauropod dinosaur from the early Cretaceous Period. It was a basal titanosauriform which lived in what is now Gansu, China.
The Yunnan box turtle is a species of turtle in the family Geoemydidae. It is believed to be endemic to Yunnan, China and was suspected to be extinct since the early 20th century; the last verified specimen was collected in 1940.
The Tiaojishan Formation is a geological formation in Hebei and Liaoning, People's Republic of China, dating to the middle-late Jurassic period. It is known for its exceptionally preserved fossils, including those of plants, insects and vertebrates. It is made up mainly of pyroclastic rock interspersed with basic volcanic and sedimentary rocks. Previously, the Tiaojishan Formation was grouped together with the underlying Haifanggou Formation as a single "Lanqi Formation." The Tiaojishan Formation forms a key part of the Yanliao Biota assemblage, alongside the Haifanggou Formation.
Laojun Mountain is a mountain in the northwest part of Yunnan Province, China. It is part of the Laojun Mountain region, which includes an area of 1,085 square kilometres (419 sq mi) with elevations ranging from 2,100 to 4,513 metres. The region includes four counties: Yulong, Jianchuan, Lanping, and Weixi. The western part of the region adjoins the Lancang River, while the eastern part is contiguous with the Jinsha River. The region was included in the Three Parallel Rivers UNESCO World Heritage Site in 2003, and the Laojun Mountain National Park was announced in January 2009.
Cycas multipinnata, common name Royal Sago, is a species of cycad or Sago Palm in southwestern China and northern Vietnam. It is noteworthy for three things: First it is one of the tuberous species which some taxonomists segregate as the genus Epicycas. Secondly, it has the longest leaf stalks (petioles) of any Gymnosperm; up to 11.5 feet. Cultivated plants have had petioles as long as thirteen feet. The total length of the bipinnate frond can be up to 23 feet seven meters) The ultimate pinnules are "Y" shaped. Thirdly, this very conspicuous plant escaped notice until 1994. Among Gymnosperms, these fronds are exceeded in mass only by Encephalartos laurentianus.
Cycas diannanensis is a species of cycad endemic to Yunnan, China.
Cycas dolichophylla is a species of cycad in northern Vietnam and southern China.
Cycas segmentifida is a species of cycad endemic to southern China. It is found in primarily western Guangxi, as well as parts of neighboring southern Guizhou and eastern Yunnan.
Cycas guizhouensis is a species of cycad endemic to southwestern China.
Cycas hongheensis is a species of cycad endemic to Yunnan, southern China. It is found in Gejiu and Shiping County. It is also found in Dawei Mountain Nature Reserve. Only two wild populations remain, both with fewer than 1,000 individuals.
Cycas szechuanensis is a species of cycad endemic to eastern China. It is known from eastern Guangdong and eastern Fujian provinces, China. It is also cultivated at Fuhu Temple (伏虎寺), Mount Emei, Sichuan.
Cycas tanqingii is a species of cycad in China and Vietnam. It is found in Luchun County, southern Yunnan Province, China, and in Lai Châu Province, Vietnam. In China, it is located in the Xiaoheidiang River and Heishui River watersheds. In Luchun County, it is protected in Huanglian Mountain National Nature Reserve. It is also cultivated at the Shenzhen Fairy Lake Botanical Garden and at the Forestry Bureau of Luchun County.
Cycas chenii is a species of cycad endemic to the Red River valley of Yunnan, southern China. It is found in Honghe County and Shuangbai County, Yunnan. It is most closely related to Cycas guizhouensis.
