Trillium is a genus of about fifty flowering plant species in the family Melanthiaceae. Trillium species are native to temperate regions of North America and Asia, with the greatest diversity of species found in the southern Appalachian Mountains in the southeastern United States.
Melanthiaceae, also called the bunchflower family, is a family of flowering herbaceous perennial plants native to the Northern Hemisphere. Along with many other lilioid monocots, early authors considered members of this family to belong to the family Liliaceae, in part because both their sepals and petals closely resemble each other and are often large and showy like those of lilies, while some more recent taxonomists have placed them in a family Trilliaceae. The most authoritative modern treatment, however, the APG III system of 2009, places the family in the order Liliales, in the clade monocots. Circumscribed in this way, the family includes up to 17 genera.
Melanthieae is a tribe of flowering plants within the family Melanthiaceae. Molecular phylogenetic studies in the 21st century have resulted in a large-scale reassignment of many of its species to different genera; in particular the genus Zigadenus (deathcamases) has been restricted to a single species, Zigadenus glaberrimus. Plants contain alkaloids, making them unpalatable to grazing animals; many are very poisonous to both animals and humans.
Amianthium is a North American genus of perennial plants growing from bulbs. It contains the single known species Amianthium muscitoxicum, known in English as fly poison from a literal translation of the Latin epithet muscitoxicum, and is noted for its pretty flowers and its toxic alkaloid content. While all parts of the plant are poisonous, the bulb is particularly toxic. The scientific epithet was given to it by Thomas Walter when he published his Flora Caroliniana in 1788.
Toxicoscordion venenosum, with the common names death camas and meadow death camas, is a species of flowering plant in the genus Toxicoscordion, of the Melanthiaceae family. It is named for its well known toxic qualities with its common names and scientific name referencing this. Because its nectar is also poionous, it is mainly pollinated by the death camas miner bee, which specializes collecting the toxic pollen for its young. It is native to western North America from New Mexico to Saskatchewan and west to the Pacific Ocean.
Xerophyllum is a genus of perennial plants from the family Melanthiaceae. The genus is native to North America.
Trillium flexipes, known as the nodding wakerobin, bent trillium, or drooping trillium, is a species of flowering plant in the family Melanthiaceae. It is found from Minnesota to Ohio, south to Tennessee, with isolated populations in New York, Pennsylvania, Alabama, and other states. It is an endangered species in Ontario and threatened in North Carolina.
Deathcamas or death camas refers to several species of flowering plant in the tribe Melanthieae. The name alludes to the great similarity of appearance between these toxic plants, which were formerly classified together in the genus Zigadenus, and the edible camases (Camassia), with which they also often share habitat. Other common names for these plants include deadly zigadene, hog potato and mystery-grass.
Trillium pusillum is a species of flowering plant in the family Melanthiaceae known by the common names dwarf trillium, least trillium and dwarf wakerobin. It is native to the southeastern and south-central United States from Oklahoma to Maryland.
Schoenocaulon is a North American genus of perennial herbaceous flowering plants, ranging from the southern United States to Peru. It is a member of the Melanthiaceae, according to the APG III classification system, and is placed in the tribe Melanthieae. Unlike other genera in the tribe, the flowers are arranged in a spike; depending on the species the flower stalks for each flower are either very short or completely absent. Feathershank is a common name, the medicinally used S. officinale is called Sabadilla.
Anticlea is a genus of flowering plants in the family Melanthiaceae, tribe Melanthieae. Molecular phylogenetic studies in the 21st century have resulted in number of changes to placements within this tribe. Anticlea was long submerged into the genus Zigadenus; however its separate position has been confirmed. Some species were also moved from Stenanthium into Anticlea. Members of Anticlea may also be distinguished from other members of the former genus Zigadenus, the deathcamases, by the presence of narrow tepals with a single, conspicuous, bilobed gland. It also has a wider distribution, occurring in Asia and much of North and Central America, ranging south to Guatemala.
Toxicoscordion is a genus of flowering plants in the family Melanthiaceae, tribe Melanthieae, first described as a genus in 1903. The genus is mainly distributed in the midwestern United States and western North America, with some species in western Canada and northern Mexico.
Stenanthium is a North American genus of flowering plants in the tribe Melanthieae of the family Melanthiaceae.
Zigadenus is a genus of flowering plants now containing only one species, Zigadenus glaberrimus, the sandbog death camas, found in the southeastern United States from Mississippi to Virginia. Around 20 species were formerly included in the genus, but have now been moved to other genera.
Stenanthium densum is a poisonous but spectacular monocot wildflower native to pine barrens of the eastern United States. It is known variously as Osceola's plume, crowpoison, or black snakeroot. Stenanthium leimanthoides is either treated as a synonym of this species or as a separate species. It is native to the southernmost Gulf Coast, from eastern Louisiana east, down through most of Florida, and to the easternmost Atlantic Coast north to Rhode Island, seldom far from the coast.
Medeola virginiana, known as Indian cucumber, cucumber root, or Indian cucumber-root, is an eastern North American plant species in the lily family, Liliaceae. It is the only currently recognized plant species in the genus Medeola. It grows in the understory of forests. The plant bears edible rhizomes that have a mild cucumber-like flavor.
Trillium ludovicianum, the Louisiana wakerobin or Louisiana trillium, is a species of flowering plant in the family Melanthiaceae. It is found only in the south-central United States, in Louisiana, Mississippi, and eastern Texas.
MelanthialesLink was an order of monocotyledons, whose name and botanical authority is derived by typification from the description of the type family, Melanthiaceae by Johann Heinrich Friedrich Link in 1829.
Pseudolycopodium is a genus of lycophyte in the family Lycopodiaceae with only one species, Pseudolycopodium densum, known as the bushy clubmoss. In the Pteridophyte Phylogeny Group classification of 2016, the genus is placed in the subfamily Lycopodioideae. Some sources do not recognize the genus, sinking it into Lycopodium. Pseudolycopodium densum is native to Australia, the North Island of New Zealand and New Caledonia. It is a spore-bearing vascular plant and grows up to a metre high. It is found in a wide variety of situations, often in high rainfall areas on sandy soils.
