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Chaenactideae
Chaenactideae is a tribe of flowering plants in the subfamily Asteroideae of the family Asteraceae The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w .... Chaenactideae genera recognized by the Global Compositae Database as of April 2022: *'' Chaenactis'' *'' Dimeresia'' *'' Orochaenactis'' References Asteraceae tribes {{Asteroideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaenactideae
Chaenactideae is a tribe of flowering plants in the subfamily Asteroideae of the family Asteraceae The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae w .... Chaenactideae genera recognized by the Global Compositae Database as of April 2022: *'' Chaenactis'' *'' Dimeresia'' *'' Orochaenactis'' References Asteraceae tribes {{Asteroideae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asteroideae
Asteroideae is a subfamily of the plant family Asteraceae. It contains about 70% of the species of the family. It consists of several tribes, including Astereae, Calenduleae, Eupatorieae, Gnaphalieae, Heliantheae, Senecioneae and Tageteae. Asteroideae contains plants found all over the world, many of which are shrubby. There are about 1,135 genera and 17,200 species within this subfamily; the largest genera by number of species are ''Helichrysum'' (500–600) and ''Artemisia'' (550). Asteroideae is said to date back to approximately 46–36.5 million years ago. Common characteristics This family will often have radiate style heads but some could have discoid or disciform. They contain ray florets that are three lobed and are also considered perfect flower implying that it is bisexual. Many contain stigmatic surfaces that are separated by two marginal bands and terminal sterile appendages with sweeping hairs. Taxonomy This subfamily is composed of 21 tribes that are broken i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dimeresia
''Dimeresia'' is a monotypic genus in the sunflower family containing the single species ''Dimeresia howellii'', known by the common name doublet. Distribution This uncommon plant is endemic to an area of the Great Basin region in the western United States, in northeastern California, southeastern Oregon, southwestern Idaho, and northwestern Nevada. It grows in dry volcanic soils, primarily on the Modoc Plateau __NOTOC__ The Modoc Plateau lies in the northeast corner of California as well as parts of Oregon and Nevada. Nearly of the Modoc National Forest are on the plateau between the Medicine Lake Highlands in the west and the Warner Mountains in the ... volcanic plain, at elevations of . Description ''Dimeresia howellii'' is a very tiny annual flowering plant rarely exceeding 4 centimeters in height or width. It forms a small tuft on the ground with several oval-shaped leaves, and is cobwebby at base and glandular above. The inflorescence has tiny white to purple bell-s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Orochaenactis
''Orochaenactis'' is a monotypic genus of flowering plants in the daisy family containing the single species ''Orochaenactis thysanocarpha'', which is known by the common name California mountain pincushion. It is endemic to the southern Sierra Nevada of California, where it grows in the forests and meadows of the high mountains. Description ''Orochaenactis thysanocarpha'' is an annual herb producing a slender, often branching stem up to about 25 centimeters tall. It is coated thinly to densely in hairs, often glandular. The narrow leaves are generally linear in shape and up to 4 centimeters long. The inflorescence is a small flower head lined with purple phyllaries nested in a cluster of leaflike bracts. The head contains several yellow disc florets. The fruit is a ribbed achene An achene (; ), also sometimes called akene and occasionally achenium or achenocarp, is a type of simple dry fruit produced by many species of flowering plants. Achenes are monocarpellate (formed f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaenactis Fremontii
''Chaenactis fremontii'', with the common names Frémont's pincushion and desert pincushion, is a species of annual wildflower in the daisy family. Both the latter common name, and the specific epithet are chosen in honor of John C. Frémont. Distribution and habitat ''Chaenactis fremontii'' is native to the Southwestern United States and northern Baja California. It grows in sandy and gravelly soils in the deserts and low mountains, such as the Mojave Desert in California and the Sonoran Desert habitats. It is found in California, Baja California, Arizona, Nevada, and southern Utah. Description ''Chaenactis fremontii'' grows in patches of long stems up to long that are green when new and grow reddish with age. They may branch to extend many tall, almost naked stems. The sparse leaves are somewhat fleshy and long and pointed. Atop each erect stem is an inflorescence bearing usually one but sometimes more flower heads, each with plentiful densely packed disc floret ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chaenactis
''Chaenactis'' is a genus of plants in the daisy family which are known generally as pincushions or dustymaidens. These wildflowers are native to western North America, especially the desert southwest of the United States. They are quite variable in appearance. They are generally aster-like in appearance with many disc florets in each head. There may be only disc florets, but sometimes there are also enlarged ray florets along the edges of the corolla. They may be white to yellow or pink. Species Species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ... include:CONABIO. 2009. Catálogo taxonómico de especies de México. 1. In Capital Nat. México. CONABIO, México D.F. References External links Calflora Database: ''Chaenactis'' Taxon Report— ''with species links + images'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asteraceae
The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae were first described in the year 1740. The number of species in Asteraceae is rivaled only by the Orchidaceae, and which is the larger family is unclear as the quantity of extant species in each family is unknown. Most species of Asteraceae are annual, biennial, or perennial herbaceous plants, but there are also shrubs, vines, and trees. The family has a widespread distribution, from subpolar to tropical regions in a wide variety of habitats. Most occur in hot desert and cold or hot semi-desert climates, and they are found on every continent but Antarctica. The primary common characteristic is the existence of sometimes hundreds of tiny individual florets which are held together by protective involucres in flower heads, or more technicall ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
