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Toxicoscordion
''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. Molecular phylogenetic studies in the 21st century have resulted in number of changes to placements within this tribe. ''Toxicoscordion'' was long submerged into the genus ''Zigadenus'', but its separate position in the phylogeny of the Melanthieae has been confirmed. Members of ''Toxicoscordion'' may also be distinguished from other similar members of the deathcamas tribe by the presence of narrow, clawed tepals with a single, conspicuous, rounded gland. ; Species * ''Toxicoscordion brevibracteatum'' (syn. ''Zigadenus brevibracteatus'') - desert deathcamas - Baja California, Sonora, California * ''Toxicoscordion exaltatum'' (syn. ''Zigadenus exaltatus'') - giant deathcamas - California, Nevada * ''To ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toxicoscordion Venenosum
''Toxicoscordion venenosum'', with the common names death camas and meadow death camas, is a species of flowering plants in the genus ''Toxicoscordion'', of the Melanthiaceae family. It is native to western North America from New Mexico to Saskatchewan and west to the Pacific Ocean. The plant is called alapíšaš in Sahaptin, and nupqasaquⱡ ("nup-ka-sa-qush") in Ktunaxa. Description ''Toxicoscordion venenosum'' grows up to 70 cm tall with long, basal, grass-like leaves. The bulbs are oval and look like onions but do not smell like edible onions of the genus ''Allium''. The flowers are cream coloured or white and grow in pointed clusters, flowering between April and July. The flower clusters are a raceme (each cluster branches once along the main stalk), unlike its close relative ''Toxicoscordion paniculatum'', in which the flowers are born in a panicle (doubly branched flower stalks). The flowers have three sepals and three petals. Varieties Varieties include: * ''Toxi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melanthieae
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. Description Like the family as a whole, members of the tribe are "lilioid monocots", i.e. their flowers superficially resemble those of the genus ''Lilium'', with six tepals not differentiated into sepals and petals. As with other lilioid monocots, they were previously included in a broadly defined family Liliaceae. They are found mainly in woodland or alpine habitats in the temperate regions of the Northern Hemisphere (North America, Central America, and Asia), with one species found in South America. They are perennials, growing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toxicoscordion
''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. Molecular phylogenetic studies in the 21st century have resulted in number of changes to placements within this tribe. ''Toxicoscordion'' was long submerged into the genus ''Zigadenus'', but its separate position in the phylogeny of the Melanthieae has been confirmed. Members of ''Toxicoscordion'' may also be distinguished from other similar members of the deathcamas tribe by the presence of narrow, clawed tepals with a single, conspicuous, rounded gland. ; Species * ''Toxicoscordion brevibracteatum'' (syn. ''Zigadenus brevibracteatus'') - desert deathcamas - Baja California, Sonora, California * ''Toxicoscordion exaltatum'' (syn. ''Zigadenus exaltatus'') - giant deathcamas - California, Nevada * ''To ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toxicoscordion Paniculatum
''Toxicoscordion paniculatum'' is a species of flowering plant known by the common names foothill deathcamas, panicled death-camas, and sand-corn. It is widely distributed across much of the western United States, especially in the mountains and deserts of the Great Basin region west of the Rocky Mountains. It grows in many types of habitat, including sagebrush plateau, grasslands, forests, and woodlands, etc. ''Toxicoscordion paniculatum'' is a perennial wildflower growing from a brown or black bulb up to 5 centimeters long by 3 wide. The stem grows up to 70 centimeters long. The leaves are linear in shape, measuring up to 50 centimeters long. Most of the leaves are at the base of the stem and there may be a few reduced leaves above. The inflorescence is an open panicle of flowers, becoming dense at the tip. (The flower pictured here appears to be of the close relative ''Toxicoscordion venenosum''; see Burke Museum external link for accurate descriptions.) The panicle contains ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toxicoscordion Micranthum
''Toxicoscordion micranthum'', the smallflower deathcamas, is a flowering plant in the genus ''Toxicoscordion''. It is native to Oregon and California, primarily in the Coast Ranges from Douglas County to Napa and Sonoma Counties, with isolated populations in Lassen, Plumas, Santa Clara, and San Benito Counties. It is a member of the serpentine soil Serpentine soil is an uncommon soil type produced by weathered ultramafic rock such as peridotite and its metamorphic derivatives such as serpentinite. More precisely, serpentine soil contains minerals of the serpentine subgroup, especially anti ...s flora. ''Toxicoscordion micranthum'' is a bulb-forming herb up to 70 cm tall and bearing as many as 60 flowers. Flowers are white or cream-colored, sometimes with green markings, 5–12 mm in diameter hence smaller than most of the other species in the genus. References External links Jepson Manual Treatment, ''Zigadenus micranthus'' Eastw. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toxicoscordion Fremontii
''Toxicoscordion fremontii'', known as the common star lily or Frémont's deathcamas (after John C. Frémont) or star zigadene, is an attractive wildflower found on grassy or woody slopes, or rocky outcrops, in many lower-lying regions of California, southwestern Oregon, and northern Baja California Baja California (; 'Lower California'), officially the Free and Sovereign State of Baja California ( es, Estado Libre y Soberano de Baja California), is a state in Mexico. It is the northernmost and westernmost of the 32 federal entities of Mex .... Like other deathcamases, ''T. fremontii'' grows from a more or less spherical bulb, which in this species has a diameter of 20–35 mm. Its leaves can reach up to half a meter in length, but are typically half that length. They grow from the base of the plant. Flowers, which can be seen from March to June, grow in clusters. They have six petals (strictly, three petals and three very similar sepals), arranged symmetrically, givin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toxicoscordion Brevibracteatum
''Toxicoscordion brevibracteatum'' (syn. ''Zigadenus brevibracteatus'') is a species of flowering plant known by the common name desert deathcamas. It is native to Baja California, Sonora, and California, where it grows in sandy desert habitat among creosote and Joshua trees. ''Toxicoscordion brevibracteatum'' is a perennial wildflower growing from a brown or black bulb up to 4 centimeters long. The stem grows up to 50 or 60 centimeters long. The leaves are linear in shape, measuring up to 30 centimeters long by one wide. Most of the leaves are at the base of the stem and there may be a few reduced leaves above. The inflorescence is an open panicle of flowers at the tips of branches. The flowers are male or bisexual, with six cream-colored tepal A tepal is one of the outer parts of a flower (collectively the perianth). The term is used when these parts cannot easily be classified as either sepals or petals. This may be because the parts of the perianth are undif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toxicoscordion Nuttallii
''Toxicoscordion nuttallii'' (Nuttall's death camas, death camas, poison camas, poison sego) is a species of poisonous plant native to the south-central part of the United States (Arkansas, Oklahoma, Tennessee, Missouri, Louisiana, Mississippi, Kansas, and Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...). ''Toxicoscordion nuttallii'' is a bulb-forming herb up to 75 cm tall. One plant can have as many as 60 cream-colored flowers. References External linksphotos, short description, ecological informationLady Bird Johnson Wild flower Center, University of Texas, Austin, ''Zigadenus nuttallii'' (A. Gray) S. Watson Nuttall's deathcamas, Death Camas, Poison onion, Nuttall's death camas [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zigadenus
''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. Description ''Zigadenus glaberrimus'' generally grows to a height of . A total of 30–70 flowers are borne in panicles. Each white to cream colored flower is bell-shaped, across. The tepals of the flower remain attached to the fruit capsule when it forms. The cone shaped seed capsules are long by across. ''Zigadenus glaberrimus'' flowers from mid July to September. It is found growing in pine bogs, savannas and sandy pinelands in the US states of Alabama, Florida, Georgia, Mississippi, Virginia, North Carolina and South Carolina. Systematics The genus is a member of the family Melanthiaceae, tribe Melanthieae. Molecular phylogenetic studies in the 21st century have resulted in numb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toxicoscordion Exaltatum
''Toxicoscordion exaltatum'' the giant deathcamas, is a North American flowering plant in the genus ''Toxicoscordion'', reputed to be deadly poisonous. It is native to California, Oregon, and Nevada, where it can be found in the Sierra Nevada foothills :''See Sierra Nevada for general information about the mountain range in the United States.'' The ecology of the Sierra Nevada, located in the U.S. states of California and Nevada, is diverse and complex: the plants and animals are a significant .... References External linksJepson Manual Treatment exaltatum [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toxicoscordion Fontanum
''Toxicoscordion fontanum,'', common name small-flower death camas, is a rare plant species known only from serpentine marshes in California. It is found primarily in the Coast Ranges from Mendocino County to San Luis Obispo County, with an additional report of an isolated population in the Sierra Nevada foothills in Kern County east of Bakersfield. ''Toxicoscordion fontanum'' is a bulb-forming perennial herb. Bulbs are egg-shaped, up to 40 mm (1.6 inches) long, not clumped together. Inflorescences are paniculate, sometimes with as many as 100 flowers. Tepals are cream-colored, up to 12 mm (0.5 inches) long; filaments shorter than the tepals. Toxicity As with many other species formerly included in ''Zigadenus'', this species is highly toxic and potentially lethal to humans and to livestock. Some people have eaten it confusing it with wild onion, ''Allium'' spp. ''Zigadenus'' and ''Toxicoscordion'' do not, however, have the characteristic onion scent associated with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melanthiaceae Genera
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 (unchanged from the 2003 APG II system and the 1998 APG system), places the family in the order Liliales, in the clade monocots. Circumscribed in this way, the family includes up to 17 genera. Familiar members of the family include the genera ''Paris'' and ''Trillium''. Genera and species , the World Checklist of Selected Plant Families accepted 17 genera in the family.Search for "Melanthiaceae", They have been divided into five tribes. It h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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