Avena is a genus of Eurasian and African plants in the grass family. Collectively known as the oats, they include some species which have been cultivated for thousands of years as a food source for humans and livestock. They are widespread throughout Europe, Asia and northwest Africa. Several species have become naturalized in many parts of the world, and are regarded as invasive weeds where they compete with crop production. All oats have edible seeds, though they are small and hard to harvest in most species.
Cassytha is a genus of some two dozen species of obligately parasitic vines in the family Lauraceae. Superficially, and in some aspects of their ecology, they closely resemble plants in the unrelated genus Cuscuta, the dodders. When fruit and flowers are absent in the field, the physical resemblance is so close that few people without technical training can discern the difference. In this respect and in their ecology the two genera present a spectacular example of convergent evolution. Nonetheless, Nickrent comments that "Cassytha is uneqivocally assigned to Lauraceae based on (both) morphological and molecular data." In its divergence from habits typical of the Lauraceae, Cassytha also presents examples of mosaic evolution
Ischaemum is a taxonomically one of the most formidable genera in a huge tribe Andropogoneae belonging to the grass family, widespread in tropical and semitropical regions in many countries. Many species are known commonly as murainagrass.
Lepturus is a genus of plants in the grass family, native to Asia, Africa, Australia, and various islands in the Indian and Pacific Oceans.
Parapholis incurva is a species of grass native to Europe, Asia and northern Africa, and widely naturalised elsewhere. Common names include coast barbgrass, curved sea hard grass, curved hard-grass, sicklegrass, curved sicklegrass and curved parapholis.
Phacelurus is a genus of African and Eurasian plants in the grass family.
Reynaudia is a genus of plants in the grass family. The only known species is Reynaudia filiformis, native to the Greater Antilles.
Stenotaphrum is a widespread genus of plants in the grass family.
Ophiuros is a genus of Asia, Australian, and East African plants in the grass family.
Elionurus is a genus of Asian, African, Australian, and Neotropical plants in the grass family.
Echinaria is a genus of Eurasian and North African plants in the grass family. The only known species is Echinaria capitata, native to the Mediterranean Region as well as the Southwest and Central Asia.
Henrardia is a genus of Asian plants in the grass family.
Narduroides is a genus of Mediterranean plants in the grass family. The only known species is Narduroides salzmannii, native to Spain, France, Morocco, Algeria, Libya, Cyprus, and Turkey.
Nephelochloa is a genus of flowering plant in the grass family, Poaceae. The only known species is Nephelochloa orientalis, found only in Turkey.
Rottboellia is a genus of African, Asian, and Australian plants in the grass family.
Veronica filiformis is a species of flowering plant in the family Plantaginaceae. It is known by many common names, including slender speedwell, creeping speedwell, threadstalk speedwell and Whetzel weed. It is native to eastern Europe and western Asia, and it is known in many other regions as an introduced species.
Vossia is a monotypic genus in the grass family, found in Asia and Africa. The only known species is Vossia cuspidata, an aquatic grass native to Africa, and to Assam, Bangladesh, and northern Indochina. The common name is hippo grass.
Avenula is a genus of Eurasian flowering plants in the grass family. Over 100 names have been proposed for species, subspecies, varieties, and other infraspecific taxa within Avenula, but only one species is accepted. The others names are all regarded as synonyms of other accepted names. The only recognized species in the genus is Avenula pubescens, commonly known as downy oat-grass or downy alpine oatgrass, native to Europe and Asia from Iceland and Portugal to Xinjiang, Mongolia, and Siberia. It is also naturalized in scattered locations in North America, in states as Connecticut, Delaware, Minnesota, New Jersey and Vermont, and in Canadian provinces such as Alberta, Manitoba, Ontario, Quebec, and Saskatchewan.
Johnsonia pubescens, commonly called the pipe lily, is a grass-like plant in the family Asphodelaceae, subfamily Hemerocallidoideae, endemic to the south-west of Western Australia. As with others in the genus, it is distinguished by its minute flowers which are on the end of a spike and hidden by large, overlapping, papery bracts.
Parapholis filiformis is a species of annual herb in the family Poaceae. They have a self-supporting growth form and simple, broad leaves. Individuals can grow to 0.17 m.
