Zelkova is a genus of six species of deciduous trees in the elm family Ulmaceae, native to southern Europe, and southwest and eastern Asia. They vary in size from shrubs to large trees up to 35 m (115 ft) tall. The bark is smooth, dark brown. Unlike the elms, the branchlets are never corky or winged. The leaves are alternate, with serrated margins, and a symmetrical base to the leaf blade. The leaves are in two distinct rows; they have pinnate venation and each vein extends to the leaf margin, where it terminates in a tooth. There are two stipules at each node, though these are caducous, leaving a pair of scars at the leaf base. Zelkova is polygamous. Staminate flowers are clustered in the lower leaf axils of young branchlets; the perianth is campanulate, with four to six lobes, and the stamens are short. Pistillate and hermaphrodite flowers are solitary, or rarely in clusters of two to four, in the upper leaf axils of young branchlets. The fruit is a dry, nut-like drupe with a dorsal keel, produced singly in the leaf axils. The perianth and stigma are persistent.
Temperate rainforests are coniferous or broadleaf forests that occur in the temperate zone and receive heavy rainfall.
Dryas is a genus of perennial cushion-forming evergreen dwarf shrubs in the family Rosaceae, native to the arctic and alpine regions of Europe, Asia and North America. The genus is named after the dryads, the tree nymphs of ancient Greek mythology. The classification of Dryas within the Rosaceae has been unclear. The genus was formerly placed in the subfamily Rosoideae, but is now placed in subfamily Dryadoideae.
Sophora is a genus of about 45 species of small trees and shrubs in the pea family Fabaceae. The species are native to southern Asia, Australasia, various Pacific islands, western South America, the western United States, Florida and Puerto Rico. The generic name is derived from sophera, an Arabic name for a pea-flowered tree.
Diapensiaceae is a small family of flowering plants, classified as a crown group, which includes 15 species in 6 genera. The genera include Berneuxia Decne., Diapensia L., Galax Sims, Pyxidanthera Michx., Shortia Torr. & A.Gray, and Schizocodon Siebold & Zucc.. Members of this family have little economic importance, however, some members are cultivated by florists.
Abeliophyllum, the miseonnamu, Korean abeliophyllum, white forsythia, or Korean abelialeaf, is a monotypic genus of flowering plants in the olive family, Oleaceae. It consists of one species, Abeliophyllum distichum Nakai, endemic to Korea, where it is endangered in the wild, occurring at only seven sites. It is related to Forsythia, but differs in having white, not yellow, flowers.
Purshia is a small genus of 5-8 species of flowering plants in the family Rosaceae, native to western North America, where they grow in dry climates from southeast British Columbia in Canada south throughout the western United States to northern Mexico. The classification of Purshia within the Rosaceae has been unclear. The genus was originally placed in the subfamily Rosoideae, but is now placed in subfamily Dryadoideae.
Nepenthes khasiana is an endangered tropical pitcher plant of the genus Nepenthes. It is the only Nepenthes species native to India. It is thought to attract prey by means of blue fluorescence.
Takenoshin Nakai was a Japanese botanist. In 1919 and 1930 he published papers on the plants of Japan and Korea, including the genus Cephalotaxus.
Polylepis is a genus comprising 28 recognised shrub and tree species, that are endemic to the mid- and high-elevation regions of the tropical Andes. This group is unique in the rose family in that it is predominantly wind-pollinated. They are usually gnarled in shape, but in certain areas some trees are 15–20 m tall and have 2 m-thick trunks. The foliage is evergreen, with dense small leaves, and often having large amounts of dead twigs hanging down from the underside of the canopy. The name Polylepis is, in fact, derived from the Greek words poly (many) plus letis (layers), referring to the shredding, multi-layered bark that is common to all species of the genus. The bark is thick and rough and densely layered for protection against low temperatures. Some species of Polylepis form woodlands growing well above normal tree line within grass and scrub associations at elevations over 5000 m; which makes Polylepis appear to be the highest naturally occurring arboraceous angiosperm genus in the world.
Naufraga balearica is an extremely species of flowering plant in the family Apiaceae, and the only species in the monotypic genus Naufraga. It is endemic to the Spanish island of Majorca, where it is found only at the base of cliffs at the north of the island near Pollença. A population was discovered on Corsica in 1981, but it had died out by 1983, and it is not clear whether it arrived naturally. Its natural habitats are Mediterranean-type shrubby vegetation and rocky shores.
Platanthera calceoliformis is a species of orchid endemic to north-western Yunnan province, China. It is found at altitudes of 3,200–4,000 metres (10,500–13,100 ft) in alpine grasslands. It is listed as an endangered species on the IUCN Red List.
Rhynchospora alba, the white beak-sedge, is a plant in the sedge family, Cyperaceae. It is a tufted herbaceous perennial around 50 cm tall, with white inflorescences that flower in August. The fruit of the sedge is a small achene with a characteristic beak-like cap. It is dispersed by wind or falls by gravity, leading to individuals existing in tight clumps. The species favours wet, acidic and nutrient poor soils, thriving in Sphagnum-dominated bogs, but also peaty grasslands. As such it is often used as a positive indicator for bog and mire ecosystem health.
Lyonothamnus is a monotypic genus of trees in the rose family containing the single living species Lyonothamnus floribundus, which is known by the common name Catalina ironwood, and the subspecies L. f. ssp. aspleniifolius and L. f. ssp. floribundus.
Telopea aspera, commonly known as the Gibraltar Range waratah, is a plant in the family Proteaceae. It grows as a woody shrub to 3 metres (10 ft) high with leathery rough leaves and bright red flower heads known as inflorescences—each composed of hundreds of individual flowers. It is endemic to the New England region in New South Wales in Australia. It was formally described as a species by botanists Peter Weston and Mike Crisp in 1995, separated from its close relative Telopea speciosissima by its rough foliage and preference for dryer habitat. Unlike its better known relative, Telopea aspera has rarely been cultivated.
Peninsula Sandstone Fynbos is a unique and endangered vegetation type that is endemic to the Cape Peninsula in Cape Town. This type of Mountain Fynbos occurs on very poor, acidic soils but is incredibly rich in biodiversity with an enormous number of plant species – many of which occur nowhere else. Due to its poor soils and steep, inaccessible location, it has not been developed for farming or houses, and consequently it is relatively well conserved.
The Yerevan Botanical Garden of the Armenian National Academy of Sciences, is the body responsible for plant collections in Armenia. It is located in the Avan district at the north-eastern part of the capital Yerevan, occupying around 80 hectares of a semi-deserted area. The collection includes more than 200 species of endemic, rare and declining plants, and provides a basis, in a relatively natural environment, for the study of the Armenian flora and the ecological interactions between plant species.
The environment of North Korea comprises the diverse ecosystems of the part of the Korean peninsula controlled by the Democratic People's Republic of Korea. Since the 1980s, the environment has been reported to be in a state of "crisis", "catastrophe", or "collapse".
Hanabusaya is a monotypic genus of flowering plants in the family Campanulaceae, containing the single species Hanabusaya asiatica. It is endemic to Korea. It is known in English as diamond bluebell and in Korean as Geumgang Chorong, having been named for the site at which it was first discovered, Geumgangsan Mountain.
The flora of Madagascar consists of more than 12,000 species of plants, as well as a poorly known number of fungi and algae. Around 83% of Madagascar's vascular plants are found only on the island. These endemics include five plant families, 85% of the over 900 orchid species, around 200 species of palms, and such emblematic species as the traveller's tree, six species of baobab and the Madagascar periwinkle. The high degree of endemism is due to Madagascar's long isolation following its separation from the African and Indian landmasses in the Mesozoic, 150–160 and 84–91 million years ago, respectively. However, few plant lineages remain from the ancient Gondwanan flora; most extant plant groups immigrated via across-ocean dispersal well after continental break-up.
