Symphyotrichum species

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Scientific Name Symphyotrichum ascendens (Aster ascendens) USDA PLANTS Symbol
SYAS3
Common Name Western Aster ITIS Taxonomic Serial No.
522184
Family Asteraceae (Sunflower) SEINet
Reference
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Description Life zones and habitat: Foothills through montane. Roadsides, meadows, along streams.
Plant: Erect perennial 4 to 48 inches tall, growing in colonies; single or multiple stems with dense, short hairs.
Leaves: Basal and stem leaves linear to narrowly-lanceolate, 3/4 to 4 inches long with smooth edges.
Inflorescence: Showy flower heads about 1 to 1-1/4 inches across with 25 to 65 narrow rays, pink to violet or blue; large number of yellow disk florets; recurved green phyllaries (bracts), rounded or with pointed tips.
Bloom period: July to September.
References: Descr. adapted from SEINet and "Flora of Colorado" by Jennifer Ackerfield.
Colorado Status
Native
Scientific Name Symphyotrichum foliaceum var. apricum (Aster foliaceus var. apricus) USDA PLANTS Symbol
SYFO2
Common Name Alpine Leafybract Aster ITIS Taxonomic Serial No.
541088
Family Asteraceae (Sunflower) SEINet
Reference
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Description Life zones and habitat: Subalpine to alpine. Slopes, meadows, along streams.
Plant: Erect perennial 2 to 8 inches tall, often purplish, hairy stems.
Leaves: Basal leaves oblanceolate and petiolate, usually withered by flowering; stem leaves ovate, lanceolate or oblanceolate and clasping.
Inflorescence: Showy flower heads 3/4 to 1-1/4 inches across with 15 to 60 rays, normally purple; large number of yellow disk florets; broad, almost leaf-like pointed phyllaries with purple edges and tips.
Bloom period: July to September.
References: Descr. adapted from SEINet and "Flora of Colorado" by Jennifer Ackerfield.
Colorado Status
Native
Scientific Name Symphyotrichum foliaceum var. canbyi (Aster foliaceus var. canbyi) USDA PLANTS Symbol
SYFOC
Common Name Canby's Aster, Leafy Aster ITIS Taxonomic Serial No.
541089
Family Asteraceae (Sunflower) SEINet
Reference
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Description Life zones and habitat: Montane. Meadows, open slopes and woods.
Plant: Highly variable variety. Erect perennial 8 to 40 inches tall, green stems with hairs in two vertical lines along the stems.
Leaves: Basal leaves oblanceolate and petiolate, usually withered by flowering; stem leaves ovate, lanceolate or oblanceolate and clasping.
Inflorescence: Showy flower heads about 1 to 1-1/2 inches across with 15 to 60 rays, normally lavender to pink, but can be white (as below); large number of yellow disk florets; broad, almost leaf-like green phyllaries with white streaks near their bases and rounded or somewhat pointed tips, outer longer than inner.
Bloom period: July to September.
References: Descr. adapted from www.swcoloradowildflowers.com and "Flora of Colorado" by Jennifer Ackerfield.
Colorado Status
Native
Scientific Name Symphyotrichum foliaceum var. parryi (Aster foliaceus var. parryi) USDA PLANTS Symbol
SYFOP
Common Name Parry's Aster ITIS Taxonomic Serial No.
541090
Family Asteraceae (Sunflower) SEINet
Reference
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Description Life zones and habitat: Foothills to subalpine. Moist areas along streams and wet meadows.
Plant: Highly variable variety. Erect perennial 8 to 40 inches tall; hairs in two vertical lines along the stems.
Leaves: Basal leaves oblanceolate and petiolate, usually withered by flowering; stem leaves ovate, lanceolate or oblanceolate and clasping, 3/4 to almost 5 inches long.
Inflorescence: Single to many composite flower heads in a rounded inflorescence, each 1 to 1-1/2 inches across with 15 to 60 rays, normally lavender to pink, but can be white (as below); large number of yellow disk florets; phyllaries smooth on the back, fringed on the edges, with white edges at the bases, outer and inner about the same length, linear-shaped and sharp-pointed.
Bloom period: July to September.
References: Descr. adapted from www.swcoloradowildflowers.com, E-Flora BC and "Flora of Colorado" by Jennifer Ackerfield.
Colorado Status
Native
© Tom Lebsack 2017