Psilactis | |
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Psilactis asteroides, Otero County, New Mexico | |
Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Eudicots |
Clade: | Asterids |
Order: | Asterales |
Family: | Asteraceae |
Subfamily: | Asteroideae |
Tribe: | Astereae |
Subtribe: | Symphyotrichinae |
Genus: | Psilactis A.Gray |
Type species | |
Psilactis asteroides [1] [2] A.Gray | |
Species [3] | |
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Synonyms [4] | |
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Psilactis is a genus of North American and South American plants in the tribe Astereae within the family Asteraceae which are known by the common name tansyaster. [5] There are six species within the genus.
The genus contains six species: Psilactis asteroides , Psilactis brevilingulata , Psilactis gentryi , Psilactis heterocarpa , Psilactis odysseus , and Psilactis tenuis . [3] Formerly included in the genus were Psilactis coulteri and Psilactis crispa which are now placed in genus Leucosyris as L. coulteri [6] and L. crispa , [7] respectively. Additionally, Psilactis lepta has been determined to be a taxonymic synonym of Psilactis asteroides. [8]
Five species within the genus have native distribution in Mexico. Psilactis heterocarpa is restricted to Texas in the United States with no Mexican distribution. [9] P. odysseus is restricted to the Mexican states Nuevo León and Tamaulipas, [10] and the other four species, P. asteroides, [11] P. brevilingulata, [12] P. gentryi, [13] and P. tenuis [14] have distributions in both countries. P. brevilingulata has an additional presence in Colombia and Peru. [12]
Symphyotrichum is a genus of over 100 species and naturally occurring hybrids of herbaceous annual and perennial plants in the composite family Asteraceae, most which were formerly treated within the genus Aster. The majority are endemic to North America, but several also occur in the West Indies, Central and South America, as well as in eastern Eurasia. Several species have been introduced to Europe as garden specimens, most notably New England aster and New York aster.
Romneya coulteri, the Coulter's Matilija poppy or California tree poppy, is a perennial species of flowering plant in the poppy family Papaveraceae. Native to southern California, USA, and Baja California, Mexico, it grows in dry canyons in chaparral and coastal sage scrub plant communities, sometimes in areas recently burned. It is a popular ornamental plant, kept for its large, showy flowers.
Thymophylla is a genus of perennial flowering plants in the tribe Tageteae within the family Asteraceae. Pricklyleaf is a common name for plants in this genus.
Machaeranthera is a genus of North American flowering plants in the family Asteraceae which are known by the common name tansyaster.
Acourtia is a genus of flowering plants in the family Asteraceae and was first described as a genus in 1830. It includes desertpeonies, such as Acourtia nana and Acourtia runcinata.
Chaetopappa is a genus of plants in the family Asteraceae which are known generally as leastdaisies.
Symphyotrichum eatonii is a species of aster known by the common name Eaton's aster. It is native to much of western North America from British Columbia to Saskatchewan, the Sierra Nevada in California, the Rocky Mountains region, to Arizona and New Mexico, where it grows in many habitats, especially wet areas such as meadows and near ditches.
Arida is a genus of flowering plants in the daisy family, Asteraceae.
Dieteria is a North American genus of flowering plants in the family Asteraceae.
Symphyotrichum dumosum is a species of flowering plant of the family Asteraceae commonly known as rice button aster and bushy aster. It is native to much of eastern and central North America, as well as Haiti and Dominican Republic. It is a perennial, herbaceous plant that may reach a height of 1 meter.
Symphyotrichum subulatum, commonly known as eastern annual saltmarsh aster or, in Britain and Ireland where it is naturalized, annual saltmarsh aster, is an annual plant in the family Asteraceae native to the eastern United States and the Gulf Coast to Texas. The species grows primarily in coastal salt marshes, although in the Ozarks it occurs as a non-marine weedy variety.
Brickellia coulteri, or Coulter's brickellbush, is a North American species of flowering plants in the family Asteraceae. It is native to Mexico and the southwestern United States.
Dieteria bigelovii, or Bigelow's tansyaster, is a North American species of plants in the family Asteraceae. It is native to the southwestern United States.
Symphyotrichum boreale is a species of flowering plant of the aster family (Asteraceae) native to North America. Commonly known as rush aster, northern bog aster, and slender white aster, it is a perennial, herbaceous plant that may reach 85 centimetres high.
Symphyotrichum hallii is a species of flowering plant in the family Asteraceae endemic to western Oregon and Washington states. Commonly known as Hall's aster, it is a perennial, herbaceous plant with a long rhizome that creates colonies of itself. It grows about 30–60 centimeters tall, and has white rays that open July–August.
Symphyotrichum porteri is a species of flowering plant in the family Asteraceae endemic to the foothills of the Rocky Mountains in the U.S. states of Wyoming, Colorado, and New Mexico. Commonly known as Porter's aster, it is a perennial, herbaceous plant that may reach 10 to 50 centimeters tall. Its flowers have white, rarely pinkish, ray florets and yellow, becoming pink then brown, disk florets. S. porteri grows at elevations of 1,800–2,900 meters. Its limited range makes it a NatureServe Vulnerable (G3) species, and it is classified Critically Imperiled (S1) in Wyoming.
Leucosyris is a genus of flowering plants belonging to the family Asteraceae.
Symphyotrichum divaricatum is an annual and herbaceous plant commonly known as southern annual saltmarsh aster. It is native to the southern United States and some northern states of Mexico.
Symphyotrichum parviflorum is an annual and herbaceous plant commonly known as southwestern annual saltmarsh aster. It is native to Mexico, the Caribbean, most of Central America, Ecuador, and the southwestern United States.