White Aster. Symphyotrichum falcatum var. commutatum, Aster or Sunflower Family also known as the Composite Family: ( Compositae ), White Aster: Also called White Prairie Aster, White Heath Aster, Rough White Panicled Aster, Aster commutatus, Aster cordineri, Aster ericoides var. commutatus, Aster falcatus var. commutatus. We wish to thank Wikipedia, the free encyclopedia for some of the information on this page. We share images and information with Wikipedia. White Aster (Symphyotrichum falcatum var. commutatum) is generally described as a Perennial Forb, Herb, or Dicot that is native to the United States. This variety tends to have decumbent or ascending stems usually branched proximally, heads in racemiform or diffuse paniculiform arrays, rarely secund, usually with 40 � 50 florets. Quick Notes: Height: Up To 36 inches tall. Flowers: The flower head is 1/3"-2/3" wide with white rays; inflorescence of 1 to a few heads clustered at end of stems. Flowering Time: August � October. Leaves: Linear, stalkless, less than 1/4" long. Found: Native to the USA (AK, AZ, CO, IA, ID, IL, KS, MA, MN, MO, MT, ND, NE, NM, OK, SD, TX, WI, WY). Also found in Canada (AB, MB, NT, ON, SK). Also found in Mexico in Chihuahua, Coahuila, Durango, Jalisco, Nuevo Le�n, Sonora. Hardiness: USDA Zone 3a: to -39.9 �C (-40 �F) USDA Zone 3b: to -37.2 �C (-35 �F) USDA Zone 4a: to -34.4 �C (-30 �F) USDA Zone 4b: to -31.6 �C (-25 �F) USDA Zone 5a: to -28.8 �C (-20 �F) USDA Zone 5b: to -26.1 �C (-15 �F) USDA Zone 6a: to -23.3 �C (-10 �F) USDA Zone 6b: to -20.5 �C (-5 �F) USDA Zone 7a: to -17.7 �C (0 �F) USDA Zone 7b: to -14.9 �C (5 �F) USDA Zone 8a: to -12.2 �C (10 �F) USDA Zone 8b: to -9.4 �C (15 �F) Soil pH requirements: 5.1 to 5.5 (strongly acidic) 5.6 to 6.0 (acidic) 6.1 to 6.5 (mildly acidic) 6.6 to 7.5 (neutral) 7.6 to 7.8 (mildly alkaline) Sun Exposure: Full Sun Elevation: 5,000 to 8,000 Feet. Habitat: Dry, open sandy or gravelly sites, stream banks, and rocky, eroded hillsides. Miscellaneous: Flowering Photos Taken At Miller Creek north of The Shrine Of Saint Joseph, Yarnell, Arizona. September 24, 2008.

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