Nikolai Tzvelev

Xerochrysum (syn. Bracteantha) is a genus of flowering plants native to Australia. It was described by Russian botanist Nikolai Tzvelev in 1990, preceding (and taking precedence over) Bracteantha which was described the following year.

Rostraria cristata, the Mediterranean hairgrass, is an annual grass species which is native to Eurasia and widely naturalised throughout central and eastern Australia.

Leucanthemella is a genus of flowering plants in the sunflower/daisy family Asteraceae. It contains two species of herbaceous perennials found in marshy habitats. They have hairy foliage and composite daisy-like white flowers in late summer and autumn. They are hardy in the most extreme European climates, down to −20 °C (−4 °F) or less, but in cultivation favour a sheltered position. Leucanthemella serotina, autumn ox-eye or giant daisy, is native to Eastern Europe (between Poland, Montenegro, and Ukraine) and widely introduced in (north)western to south-central Europe. It is a vigorous,

Ixeridium is a genus of Asian flowering plants in the family Asteraceae. Species Ixeridium aculeolatum C.Shih - Tibet Ixeridium alpicola (Takeda) Pak & Kawano - Japan Ixeridium beauverdianum (H.Lév.) Spring. - Bhutan, Japan, Nepal, Thailand, Vietnam, China Ixeridium biparum C.Shih - southern China Ixeridium dentatum (Thunb. ex Thunb.) Tzvelev - Kuril Islands, China, Japan, Korea, Philippines, Ixeridium gracile (DC.) Pak & Kawano - Nepal, Bhutan, Sikkim, Assam, Tibet, Yunnan Ixeridium kurilense Barkalov - Kuril Islands Ixeridium laevigatum (Blume) Pak & Kawano - China, Japan, Korea, Assam,

Xylanthemum is a genus of Asian plants in the daisy family. Species Xylanthemum fisherae (Aitch. & Hemsl.) Tzvelev - Uzbekistan, Kyrgyzstan, Tajikistan, Afghanistan Xylanthemum gilletii (Podlech) K.Bremer & Humphries - Iran Xylanthemum lingulatum (Boiss.) K.Bremer & Humphries - Iran Xylanthemum macropodum (Hemsl. & Lace) K.Bremer & Humphries - Pakistan Xylanthemum paghmanense (Podlech) K.Bremer & Humphries - Afghanistan Xylanthemum pamiricum (O.Hoffm.) Tzvelev - Uzbekistan, Kyrgyzstan, Tajikistan, Afghanistan, Iran Xylanthemum polycladum (Rech.f.) Tzvelev Xylanthemum rupestre (Popov ex

Leymus racemosus is a species of perennial wild rye known by the common name mammoth wild rye. It is native to southeastern and eastern Europe, Middle Asia, the Caucasus, Siberia, China, Mongolia, and parts of North America. In New Zealand, it is an introduced species and is regarded as an environmental weed. Culms are 50–100 cm long, and 10–12 mm in diameter. Wheat is the primary source of grain in the human food supply worldwide today. Especially with the current population boom, there is a strong pressure to increase wheat production to sustain the global food demand. Several factors

Arctanthemum is a genus of flowering plants in the daisy family. Species Arctanthemum arcticum (L.) Tzvelev - Russian Far East Arctanthemum integrifolium (Richardson) Tzvelev - coastal areas of Russia, Alaska, and Canada (incl Hudson Bay) Arctanthemum yezoense (Maekawa) Tzvelev- Japan + Kuril Islands (called Yezo in Japanese, hence the epithet)

Xylosalsola is a genus of flowering plants belonging to the family Amaranthaceae. Its native range is Southern European Russia to Mongolia and Pakistan. Its species include: Xylosalsola arbuscula (Pall.) Tzvelev Xylosalsola chiwensis (Popov) Akhani & Roalson Xylosalsola paletzkiana (Litv.) Akhani & Roalson Xylosalsola richteri (Moq.) Akhani & Roalson

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Leymus multicaulis, also known as manystem wild rye or manystem lyme grass, is a species of the genus Leymus. The species name of manystem wild rye, multicaulis, suggests the “many stems” of the species. Leymus multicaulis is considered a type of grass. Manystem wild rye has only one cotyledon in each of its seeds. The xylem and phloem within the roots are arranged in a ring pattern. The vascular bundles are scattered throughout the stem. These traits make Leymus multicaulis a monocot. Leymus multicaulis is a flowering plant, or angiosperm.

Leymus chinensis, commonly known as false wheatgrass or Chinese rye grass, is a species of wild rye native to China, Korea, Mongolia and Russia.

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Cancriniella is a monotypic genus of flowering plants in the aster family, Asteraceae. It contains only one known species Cancriniella krascheninnikovii, endemic to Kazakhstan.

Sisymbriopsis is a genus of flowering plants in the crucifer family Brassicaceae, native to Central Asia and western China. They may have diversified due to mountain uplift.

Leucanthemella serotina, called the autumn ox-eye, is a species of flowering plant in the genus Leucanthemella, native to Poland, Czechia, Slovakia, Hungary, Serbia, Croatia, Slovenia, Montenegro, Bosnia and Herzegovina, Macedonia, Romania, Bulgaria, and Ukraine, and introduced to Connecticut, Massachusetts, Michigan, Minnesota and New York in the United States, Ontario and Québec in Canada, and France, Germany, Great Britain, and Switzerland. It is a vigorous, erect perennial growing to 1.5 m (5 ft) tall, bearing flowerheads with white ray florets and greenish-yellow centres, throughout

Elymus macrourus is a species of grass known by the common names tufted wheatgrass and thickspike wildrye. It is native to northwestern North America in Alaska, Yukon, and the Northwest Territories. It is also present in eastern Siberia. This perennial grass grows in tufts of narrow, erect stems up to about 80 centimeters tall. It grows from a rhizome, resprouting to form new tufts. It also reproduces by seed. This grass occurs in moist habitat types such as riverbanks, sand bars, and woodlands, often alongside willow species (Salix spp.). It is also associated with prickly rose (Rosa

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Caroxylon aphyllum (commonly known as the ganna or kanna bush) is a small species of shrub in the family Amaranthaceae. It grows in the arid Karoo region of southern Africa. It typically grows in deep, dusty, saline soils, in valley bottoms and dried river plains. The shrub is so common that its name has become a designation of a certain type of Karoo ecosystem - "gannaveld" (sometimes called "vlakteveld") - and even of a local government - Kannaland Local Municipality. This species has previously been classified as Salsola aphylla.

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Pseudohandelia is a genus of flowering plants in the chamomile tribe within the daisy family. Species The only known species is Pseudohandelia umbellifera, native to Altai Krai, Kazakhstan, Turkmenistan, Uzbekistan, Kyrgyzstan, Afghanistan, Iran, Tajikistan.

Leymus akmolinensis is a species of grass endemic to Russia and Kazakhstan.

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