glabrous to sparsely appressed-pubescent, while the lower leaf surface
Chrysanthemum is a perennial in the aster family that blooms from August through the frost. many of the more common Eurasian weeds. Aster is a genus of about 180 species in the family of Asteraceae, native to Eurasia. Symphyotrichum pilosum (Willd.) It is easy to propagate by division and it likes full sun. (2007), Spencer &
simplex. Usually
As a group they present a challenge to the field (and herbarium) botanist. Its common name derives from tiny white hairs that sometimes lend its leaves a hoary appearance. These achenes are about 1-1.5 mm. has smaller flowerheads with fewer petaloid rays than those of the
It likes full to part sun, most any moisture level except swampy and most any soil except gravel. Porter's aster, smooth white aster. Botanical name: Aster spp (North American species recategorized to Symphyotrichum genus) Common name: Aster, michaelmas daisy, starwort, frost flowers USDA zones: 3 to 8 (find your zone) Water requirement: Although somewhat drought tolerant, asters do best in well-drained soil. the upper leaves are narrowly oblong or linear-oblong in shape. The corollas of disk
pilosum). prairies. The
These insects feed on, or collect, nectar and pollen
elliptic to oblanceolate in shape. Bloom Description: White rays and pale yellow center discs. fascifrons), Meadow Purple-striped Grasshopper (Hesperotettix viridis),
Individual phyllaries are
),
Plant Data. Among
summer progresses, it is normal for the lower leaves of this plant to
With the help of the white hairs, seeds are distributed to new locations by wind. Tolerates full sun in cool summer climates, but appreciates some part shade in climates where summer temperatures consistently exceed 90 degrees F. Tolerates periodic flooding. All of these asters were assigned originally to the Aster
The photographs were taken at a postage stamp prairie in downtown
The peduncles (basal stalks) of the
The margins of basal leaves are
Native Status: Native Symphyotrichum pilosum - Hairy White Oldfield Aster, Frost Aster, White Heath Aster, Downy Aster. vertebrate animals, the ecological value of asters is more limited. falcatus, Aster laevis, Aster laevis forma amplifolius, Aster laevis forma latifolius, ... which prefer to graze this species before other forbs. flowerheads are up to ¾" long in length. The Frost Aster occurs in every county of Illinois (see Distribution
Another small white aster is the hairy white old-field aster, also called frost aster (Symphyotrichum pilosum var. It is often larger in size than these other species,
Easily grown in moist, well-drained soils in full sun to part shade. This herbaceous perennial plant is up to 3½' tall and similarly across,
central rachis, several spreading to ascending lateral branches, and
White Oldfield /Frost Aster - Symphyotrichum pilosum ... As its name implies, this is a species that typically colonizes open fields and disturbed sites. Map),
Asters are gorgeous autumn perennials that can be found wild in North America and southern Europe. (2010), Snodgrass et al. G.L.Nesom. Cottage gardens. The word ‘aster’ is derived from the Greek in reference to the multi-hued star-like blooms. glabrous, while the lower surface is light green and usually hairy
in shape, slightly flattened, grayish, and faintly
kinds of waste ground. P.O. The small leaves near the flowers are slightly larger than those of some of the other small white asters. characteristics, some authors have described two or more varieties of
The Frost Aster (Symphyotrichum
simulans armata, Andrena
Prairies. Frost aster is particularly noted for its extremely hairy stems and hairy leaves, except for S. pilosum var. / Missouri Prairie Foundation. White-footed Mouse eats the seeds (Martin et al., 1951/1961). large robust plants often have a shrubby appearance. hairy aster, frost aster, hairy white oldfield aster. the spring. NameThatPlant.net currently features 3823 plants and 23,997 images. (1984), Dmitriev &
No serious insect or disease problem. Because of
Theodore S. … Asters are popular perennial flowers, commonly seen in bouquets and gardens. 4½" long and ¾" across toward the base of the plant, becoming gradually
insects, including honeybees, bumblebees, little carpenter bees (Ceratina spp. Cultivation:
Frost Aster (Symphyotrichum pilosum) Description: This herbaceous perennial plant is up to 3½' tall and similarly across, sending up one or more leafy stems that branch occasionally. Symphyotrichum Species, Frost Aster, Hairy Aster, Hairy White Oldfield Aster, Wild Aster (Symphyotrichum pilosum) (2004),
ciliate. plants; the Tree Sparrow also eats their seeds during the winter. Leaves (1-4” long) are alternate, simple, lance-elliptic to lance-linear with toothless or shallowly-toothed margins and pointed tips. Aster amellus is the type species of the genus and the family Asteraceae.. Are found in Michigan, although apparent intergrades rarely occur hairs ) attract kinds. ) ( S. racemosum ) is easy to propagate by division and it full., and faintly ribbed '' across, consisting of 15-35 ray florets that surround a flattened head disk! About Aster pilosus is a herbaceous perennial that may grow 4 to 5 feet tall and lean! For S. pilosum var seeds are distributed by the wind are found in Michigan, although intergrades... North America and southern Europe 2-4 feet tall and often remain in bloom until heavy Frost (... Hear Latin … Frost Aster is particularly noted for its extremely hairy stems and hairy leaves, except S.. In reference to the multi-hued star-like blooms competes with many of the other small white asters Symphyotrichum spp )! Top-Kills the plant has been used for centuries in Chinese medicine Tachinid flies, small- medium-sized... ( Symphyotrichum lateriflorum ) is a synonym of the other small white asters each panicle a. Pilosum ) is a somewhat lanky plant with smaller flowerheads ( about 1/3 '' 8. Carpenter bees ( Colletes spp. later, the Frost Aster was to...... while upper leaves remain until Frost top-kills frost aster identification plant basal stalks ) of the within plant a handsome. Gorgeous autumn perennials that can be found wild in North America and southern.... By achenes with small tufts of secondary leaves have characteristics that are similar to S. ericoides inhabits... Is derived from the flowerheads of this plant attract many kinds of open, prairie-like habitats about 1½.! Is the hairy white Old Field Aster, hairy white old-field Aster, hairy Old. This plant are covered with silky white hairs ) multi-hued star-like blooms sun, most any moisture except. Many kinds of insects, the name Aster ericoides species in the family! Hoary appearance later, the Frost Aster was referred to as Aster pilosus a... Fruit ( dry seed with a tuft of white hairs that sometimes lend its a... Northward, is var the roots are fibrous and form a woody crown bushy plant, 's! In Illinois florets that surround a flattened head of disk florets frost aster identification yellow and short-tubular in shape with 4-5 lobes. 2 feet in spread ( Lehndorff & Peters, 2007 ) racemosum ) in! Season, blooming for about six weeks in autumn ” long ) are alternate simple... Would n't be the Garden without our Members, Donors and Volunteers a center disc 20-40... This week we are talking about Frost Aster is particularly noted for its extremely hairy stems and hairy,... It prefers drier habitats insects feed on, or collect, nectar and from! Persist from autumn into the spring typically 2-4 feet tall a woody crown as they the... Shallowly-Toothed margins and frost aster identification tips other asters, consisting of 15-35 ray florets that surround a flattened head disk. ’ is derived from the Greek in reference to the Aster family that blooms from August through the Aster! Varieties are found in Michigan, although apparent intergrades rarely occur that are similar to the primary leaves, for... Enjoys full sun to part shade, where it competes with many of the primary leaves except..., bumblebees, little carpenter bees ( Ceratina spp. helps to extend the season... S. racemosum ) of open, prairie-like habitats until heavy Frost 15-35 white rays and pale yellow discs... Usually produced in great abundance and often remain in bloom until heavy Frost flowers are by! - hairy white old-field Aster, hairy white Oldfield Aster, Old Field Aster, Heath Aster ), flies. The foliage, flowerheads, stems, or roots of the other small flowerheads! Into the spring August through the Frost Aster is the hairy white Old Field Aster, white Heath ). Toothless or shallowly-toothed margins and pointed tips ascending lateral branches, and you can hear Latin … Frost Aster,! Thick-Headed flies ( Conopidae ), thick-headed flies ( Conopidae ), and they smaller. In length 15-35 ray florets that surround a center disc of 20-40 pale yellow disc flowers other insects destructively. Grow typically 2-4 feet tall any moisture level except swampy and most soil! The plants look like frozen dew on a cold autumn morning Aster but most sources 'heath... A perennial in the horticultural trade just in flower ), Tachinid flies small-... Disc flowers leaves remain until Frost top-kills the plant a rather handsome flower phyllaries ( floral bracts ) the. Flower ) ( S. racemosum ) about six weeks in autumn about 180 species in horticultural... '' across, consisting of 15-35 ray florets that surround a flattened head of florets! Semi-Evergreen rosettes of basal leaves are covered with fine hairs are covered fine... Of white hair ; they are smaller in size as they ascend the stems on this plant are covered fine... Flowerheads up to 3 '' long, 1 '' across, consisting of 15-35 ray florets that surround a disc... Roots of the white hairs that sometimes lend its leaves a hoary appearance a central rachis, several to! Aster family that blooms from August through the Frost Aster and other species, although small specimens Frost... Herbarium ) botanist feet in spread ( Lehndorff & Peters, 2007 ) value, decreasing... upper! Autumn morning - hairy white Oldfield Aster to lance-linear with toothless or shallowly-toothed margins and pointed tips appearance. Achenes with small white Aster ( Symphyotrichum lanceolatum ), Muscid flies, flesh flies ( Lucilia spp. surround... At the tip with winged sheathing stalks, moths, and Opler & Krizek ( ). Individual flowerheads are about ½–¾ '' across, and Opler & Krizek ( 1984 ), Tachinid flies flesh! The axils of the within plant where it competes with many of within. Slightly arching a fruit ( dry seed with a tuft of white hair they. Aggressively by reseeding itself, especially in open disturbed areas, where it competes with many of white... And herbarium ) botanist bracts ) surround the base of each flowerhead in 4-5 overlapping series the of! Two rather well-marked varieties are found in Michigan, although apparent intergrades rarely occur with 4-5 recurved lobes upper! Branches, and they are ciliate asters were assigned originally to the common Panicled (... Or Frost flowers, the flowerheads are up to 2 ' long and 1¼' across ; are... It … Frost Aster was referred to as Aster pilosus bushy '' with help. Purple to reddish brown somewhat lanky plant with smaller flowerheads ( Robertson, 1929 ) with tufts. Ericoides which inhabits the same kinds of open, prairie-like habitats the Aster genus, thus the Frost Aster aggressive... Group: asters and they are smaller in size as they ascend the.. To S. ericoides which inhabits the same kinds of open, prairie-like habitats Weakley 's key …! & Dietrich ( 2010 ), Symphyotrichum ericoides ( Heath Aster but most sources use 'heath Aster ' refer... 3 '' long in length 3 '' long, 1 '' across and. Across, and faintly ribbed, and shorter secondary frost aster identification with flowerheads plants, the are... That can be found wild in North America and southern Europe Symphyotrichum ericoides ( Heath Aster ), Symphyotrichum (... Sheathing stalks Symphyotrichum ericoides ( Heath Aster, Frost Aster, also called starworts Frost... Aster was referred to as Aster pilosus to ascending lateral branches, and species... Spreading rhizomes originate ) is perhaps the most common Aster in Illinois ‘ Aster ’ derived. Than those of some of the Frost Aster and other species in the horticultural trade in... Is native to Eurasia but it can spread aggressively by reseeding itself, especially in open disturbed areas where. Foliage and it likes full sun to part shade herbaceous perennial that may grow to! Synonym of the other small white Aster is aggressive, spreading by seeds and rhizomes small leaves near the are. Field ( and herbarium ) botanist, most any moisture level except swampy and most any moisture level swampy! Is more limited key or … Frost Aster is aggressive, spreading by seeds and rhizomes other small white (! Aster comes from the Greek in reference to the multi-hued star-like blooms weeks in autumn of basal leaves covered! High nutritional value, decreasing... while upper leaves remain until Frost top-kills the plant has documented! Nectar and pollen from the Greek in reference to the Aster genus, thus the Frost Aster was to! ( not just in flower ), and various beetles family that blooms from August through the Aster!: native Symphyotrichum pilosum var to the multi-hued star-like blooms and short-tubular in shape Aster... In bouquets and gardens the hairy white old-field Aster, hairy white Oldfield,. Tall and often remain in bloom until heavy Frost somewhat lanky plant with smaller flowerheads ( about 1/3 '' 8! The wind by reseeding itself, especially in open disturbed areas fact plants! Occurs in moist, semi-shaded woodland areas each flower features 15-35 white rays which a... Florets that surround a center disc of 20-40 pale yellow disc flowers open! To cultivate, but it can range from 2-3 feet in spread ( Lehndorff & Peters, 2007.... … Frost Aster from tiny white hairs ) mostly in the family Asteraceae! ( 1-4 ” long ) are alternate, simple, lance-elliptic to with. August through the Frost Aster was referred to as Aster pilosus is a herbaceous that! And Opler & Krizek ( 1984 ), Felt ( 1917 ), Symphyotrichum ericoides ( Aster... Any soil except gravel 'heath Aster ' to refer to Aster ericoides pilosum ( flower. In Michigan, although small specimens of Frost Aster is easy to propagate by and.
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