Symphyotrichum novae-angliae is a species of flowering plant in the aster family (Asteraceae) native to central and eastern North America. Commonly known as New England aster, hairy Michaelmas-daisy, or Michaelmas daisy, it is a perennial, herbaceous plant usually between 30 and 120 centimeters tall and 60 to 90 cm wide.
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.
Symphyotrichum ericoides, known as white heath aster, frost aster, or heath aster, is a species of flowering plant in the family Asteraceae native to much of central and eastern North America. It has been introduced to parts of Europe and western Asia.
Symphyotrichum lateriflorum is a species of flowering plant in the aster family (Asteraceae). Commonly known as calico aster, starved aster, and white woodland aster, it is native to eastern and central North America. It is a perennial and herbaceous plant that may reach heights up to 120 centimeters and widths up to 30 cm (1 ft).
Symphyotrichum ascendens is a species of flowering plant in the family Asteraceae known by the common names western aster, long-leaved aster, and Rocky Mountain aster. Blooming July–September, it is native to western North America and can be found at elevations of 500–3,200 m (1,600–10,500 ft) in several habitats.
Symphyotrichum defoliatum is a species of flowering plant in the family Asteraceae known by the common name San Bernardino aster. It is endemic to Southern California where it grows in grasslands and meadows, and it is of conservation concern.
Symphyotrichum pilosum, commonly called hairy white oldfield aster or frost aster, is a flowering plant in the family Asteraceae native to central and eastern North America. It is a perennial, herbaceous plant that may reach 20 to 120 centimeters tall. Its flowers have white ray florets and yellow disk florets.
Symphyotrichum falcatum is a species of flowering plant in the family Asteraceae. Commonly called white prairie aster and western heath aster, it is native to a widespread area of central and western North America.
Symphyotrichum patens, commonly known as late purple aster or spreading aster, is a perennial, herbaceous plant found in the eastern United States.
Symphyotrichum ontarionis is a species of flowering plant in the family Asteraceae native to eastern North America. Commonly known as Ontario aster and bottomland aster, it is a perennial, herbaceous plant that may reach 120 centimeters high. Each flower head has many tiny florets put together into what appear as one.
Symphyotrichum racemosum is a species of flowering plant native to parts of the United States and introduced in Canada. It is known as smooth white oldfield aster and small white aster. It is a perennial, herbaceous plant in the family Asteraceae. It is a late-summer and fall blooming flower.
Symphyotrichum simmondsii is a species of flowering plant of the family Asteraceae endemic to the southeastern United States. Commonly known as Simmonds' aster, it is a colony-forming herbaceous perennial.
Symphyotrichum potosinum is a species of flowering plant in the family Asteraceae native to Mexico and the U.S. state of Arizona. Commonly known as Santa Rita Mountain aster, it is a perennial, herbaceous plant that may reach heights of 15 to 45 centimeters.
Symphyotrichum molle is a species of flowering plant in the aster family (Asteraceae) endemic to the Bighorn Mountains of Montana and Wyoming in the United States. Commonly known as soft aster, it is a perennial, herbaceous plant that ranges from 30 to 60 centimeters in height.
Symphyotrichum yukonense is a species of flowering plant in the family Asteraceae endemic to disjunct areas in Alaska and the Canadian territories of Yukon and Northwest Territories. Commonly known as Yukon aster, it is a perennial, herbaceous plant 5 to 30 centimeters in height. Its flowers have purple to blue ray florets and yellow to brown disk florets. S. yukonense grows at elevations of 300–1,500 meters in mud flats and on sandy or silty lake shores. It is a NatureServe Vulnerable (G3) species and is classified Imperiled (S2) in its Canadian range.
Symphyotrichum foliaceum is a species of flowering plant in the family Asteraceae native to western North America. Commonly known as leafy aster, leafy-bracted aster, and alpine leafybract aster, it is a perennial, herbaceous plant that may reach 10 to 60 centimeters in height. Its flowers have violet to purple ray florets and yellow disk florets. Four varieties were accepted as of July 2021 by Plants of the World Online (POWO), as follows: S. foliaceum var. apricum, S. foliaceum var. canbyi, S. foliaceum var. cusickii, and S. foliaceum var. parryi. The autonym is S. foliaceum var. foliaceum.
Symphyotrichum pratense is a species of flowering plant in the family Asteraceae native to the southeastern United States. Commonly known as barrens silky aster, it is a perennial, herbaceous plant that may reach 40 to 60 centimeters tall. Its flowers have rose-purple ray florets and pink then purple disk florets.
Symphyotrichum spathulatum is a species of flowering plant in the family Asteraceae native to western North America including northwestern Mexico. Commonly known as western mountain aster, it is a perennial, herbaceous plant that may reach 20 to 80 centimeters tall. Its flowers, which open in July and August, have violet ray florets and yellow disk florets.
Symphyotrichum chapmanii is a species of flowering plant in the family Asteraceae native to the Apalachicola River drainage basin of Alabama and Florida. Commonly known as savanna aster, it is a perennial, herbaceous plant that may reach 30 to 80 centimeters tall. Its flowers have purple to blue-lavender ray florets and pale yellow disk florets. It is a wetland species and is of conservation concern. It may be extirpated in Alabama.
Symphyotrichum kentuckiense is a species of flowering plant in the family Asteraceae commonly known as Price's aster, Miss Price's aster, Sadie's aster, lavender oldfield aster, or Kentucky aster. It is a perennial, herbaceous plant endemic to the southeastern United States, specifically to broken limestone cedar glades and roadsides in Alabama, Georgia, Kentucky, and Tennessee. It blooms from August through October, reaches heights between 30 and 100 centimeters, and has green to reddish-brown stems. It is a hairless plant with blue to blue-violet ray florets.
