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Purple-stemmed Aster
(Symphyotrichum puniceum)
(formerly Aster puniceus) |
 Other common names:
Glossy-leaved Aster, Swamp Aster
Other scientific names:
Aster puniceus, Aster calvus, Aster compactus, Aster condupicatus, Aster demissus, Aster firmus, Aster lucidulus, Symphyotrichum firmum
French names:
Aster ponceau
Family:
Composite Family (Asteraceae)
Group:
Asters
Distinctive features:
Purple stem (but not always!). Grows in wet areas. Stem usually somewhat crooked (zig-zag). Relatively large sparse flowers, resembling those of New England Aster.
Similar species:
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Rush Aster (Symphyotrichum boreale) - also grows in bogs, but has very narrow, long leaves.
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Smooth Aster (Symphyotrichum laeve) - may also have a purplish stem, but is smooth all over, including the leaves.
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Bog Aster (Oclemena nemoralis) - also grows in wet areas, but usually has a single flower at the top of the stem.
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New England Aster (Symphyotrichum novae-angliae) - also has numerous ray flowers, and clasping leaves, but grows in drier habitat.
Flowers:
Summer, Autumn; Blue/Violet; 7 or more parts (petals); 2.5cm in diameter. Ray flowers: numerous: 30-50, pale blue, mauve, violet, dark blue, or purple. Disc flowers: 30-90, yellow becoming purple.
Leaves:
Gradually tapering to a base that clasps the stem, partially similar to those of New England Aster. Rough.
Height:
Up to 120 cm (47 in)
Stem:
Often reddish-purple (but not always). Usually bristly-hairy, but may be somewhat smooth. Fairly stout.
Habitat:
Fields and Open Areas, Wet Areas; Swamps and open wet areas, wet thickets.
Grows in Sun/Shade:
Sun
Lifespan:
Perennial.
Books:
Newcomb's Wildflower Guide: 456
Peterson's Field Guide to Wildflowers: 356
ROM Field Guide to Wildflowers of Ontario: 191
Native/Non-native:
Native
Status:
Very common.
Notes:
This Aster grows in wet areas and has an open aspect to it. The stem is usually crooked, and the flowers resemble those of New England Aster. It is fairly common.
Photographs:
293 photographs available, of which 15 are featured on this page. SCROLL DOWN FOR PHOTOGRAPHS.
Range Map is at the bottom of the page
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Range map for Purple-stemmed Aster (Symphyotrichum puniceum)
PLEASE NOTE: A coloured Province or State means this species occurs somewhere in that Province/State.
The entire Province/State is coloured, regardless of where in that Province/State it occurs.
(Range map provided courtesy of the USDA website
and is displayed here in accordance with their
Policies)
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