Bog Aster
Oclemena nemoralis (formerly Aster nemoralis) |
Other common names:
Wood Aster

Other scientific names:
Aster nemoralis, Eucephalus nemoralis, Galatella nemoralis

French names:
Aster de bois

Family:
Composite Family (Asteraceae)

Group:
Asters

Distinctive features:
Small plant. Grows in bogs. Leaves are small, stiff, and have inrolled margins.

Similar species:
Rush Aster (Symphyotrichum boreale) - Also grows in bogs.
Purple-stemmed Aster (Symphyotrichum puniceum) - Also grows in wet areas.

Flowers:
Summer, Autumn; Blue/Violet; 7 or more parts (petals); Usually a large (2.5-4cm in diameter) single flower at the top of the stem. Possibly up to three flowers per plant - other flowers are each on their own slender stalk. Ray flowers: 15-25, light violet-purple, pale to deep pink. Disc flowers: 20-35, yellow becoming purple. Floral bracts narrow, purple-tinged.

Leaves:
Alternate, Simple, Entire; Small, very numerous, decreasing in size up the stem, toothless, tapered at both ends.

Height:
20-70 cm (7-27 in)

Habitat:
Wet Areas, Bogs and Fens; Wet areas, bogs. In the region north of Barrie & south of North Bay, and north of Sault Ste. Marie.

Grows in Sun/Shade:
Sun

Lifespan:
Perennial.

Books:
Newcomb's Wildflower Guide: 460

Native/Non-native:
Native

Status:
Not common in Ontario.

Notes:
This Aster is not very common in Ontario. All the photos on this page are of specimens in Newfoundland.

Photographs:
124 photographs available, of which 3 are featured on this page. SCROLL DOWN FOR PHOTOGRAPHS.

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