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Oclemena acuminata

Oclemena acuminata (Michx.) Greene

Aster acuminatus Michx.

Aster acuminatus Michx. var. magdalenensis Fernald

Whorled Wood Aster, Mountain Aster, Sharp-leaved Aster

KingdomPlantaePlants, but not fungi, lichens, or algae (from Stearn’s Botanical Latin)
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionMagnoliophytaFlowering plants, also known as angiosperms
ClassMagnoliopsidaDicotyledons—plants with two initial seed leaves
SubclassAsteridaeA large class that encompasses asters
OrderAsteralesFlowering plants with a central disk flower and surrounding petals, like daisies
FamilyAsteraceaeThe aster family, which also includes daisies and sunflowers; from the Greek ἀστήρ, “star,” for the star-shaped flowers
GenusOclemena
Speciesacuminata

About plant names...

Whorled aster is a North American native plant.

Identification: Plants are 12-31" (30-80 cm) high, found in wooded areas. Oval, coarsely toothed, pointed leaves form a whorl around the stem. The arrangement of leaves, resembling a pinwheel when viewed from above, collects limited forest floor light more efficiently. Flowers form a roughly spherical cluster at the top, of flowers that are ⅞-1½" (2.5-4 cm) in diameter. Each “flower” is a composite flower, composed of disheveled-looking white ray flowers surrounding a central disc that is yellow or purplish in color. Ray flowers are bent backward, not straight as in most other aster family flowers, and composed of about 15 (9-18) rays.

Online References:

Oclemena acuminata on the Connecticut Botanical Society's Connecticut wildflowers site

Oclemena acuminata on Discover Life

Oclemena acuminata at the Lady Bird Johnson Wildflower Center

Oclemena acuminata on Ontario Wildflowers

Oclemena acuminata at the Evergreen Native Plant Database

Oclemena acuminata on CalPhotos

Oclemena acuminata on gobotany.newenglandwild.org

Oclemena acuminata on eFloras

Oclemena acuminata (Whorled Wood Aster, Mountain Aster, Sharp-leaved Aster)

9/15/2010 · Red Dot Trail, Long Lake Park, Littleton, MA
≈ 8 × 5" (19 × 13 cm) ID is uncertain

Oclemena acuminata (Whorled Wood Aster, Mountain Aster, Sharp-leaved Aster)

10/7/2012 · Beaver Brook Assn Conservation Lands, Hollis, NH
≈ 5 × 4" (13 × 11 cm) ID is uncertain

Oclemena acuminata (Whorled Wood Aster, Mountain Aster, Sharp-leaved Aster)

8/27/2010 · Beaver Brook Association Conservation Lands, Rte. 130, Hollis, NH
≈ 12 × 8" (31 × 20 cm) ID is uncertain

Oclemena acuminata (Whorled Wood Aster, Mountain Aster, Sharp-leaved Aster)

9/7/2013 · Beech Hill, Dublin, NH
≈ 9 × 6" (23 × 16 cm)

Oclemena acuminata (Whorled Wood Aster, Mountain Aster, Sharp-leaved Aster)

8/16/2012 · Mt. Tom State Reservation, Beau Bridge Trail, Holyoke, MA
≈ 5 × 3½" (13 × 9.2 cm)

Oclemena acuminata (Whorled Wood Aster, Mountain Aster, Sharp-leaved Aster)

8/27/2010 · Beaver Brook Association Conservation Lands, Rte. 130, Hollis, NH
≈ 7 × 8" (18 × 21 cm) ID is uncertain

Oclemena acuminata (Whorled Wood Aster, Mountain Aster, Sharp-leaved Aster)

9/18/2016 · Barred Island Preserve, Deer Isle, ME

Oclemena acuminata description by Thomas H. Kent, last updated 5 Oct 2016.

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Oclemena acuminata (Whorled Wood Aster, Mountain Aster, Sharp-leaved Aster)

9/24/2012 · Squanacook River Wildlife Area, Townsend, MA
≈ 6 × 6" (16 × 14 cm) ID is uncertain

Oclemena acuminata (Whorled Wood Aster, Mountain Aster, Sharp-leaved Aster)

9/9/2010 · Pine Meadow Conservation Trust Land, Groton Harvard Road, Ayer, MA
≈ 10 × 7" (25 × 18 cm) ID is uncertain

Oclemena acuminata (Whorled Wood Aster, Mountain Aster, Sharp-leaved Aster)

8/27/2010 · Beaver Brook Association Conservation Lands, Rte. 130, Hollis, NH
≈ 8 × 7" (19 × 16 cm) ID is uncertain

Oclemena acuminata (Whorled Wood Aster, Mountain Aster, Sharp-leaved Aster)

9/11/2012 · Mt. Watatic, Ashburnham, MA
≈ 2½ × 3½" (6.2 × 9.3 cm) ID is uncertain

Oclemena acuminata (Whorled Wood Aster, Mountain Aster, Sharp-leaved Aster)

9/20/2013 · Mt. Watatic, Ashby, MA
≈ 10 × 7" (25 × 16 cm) ID is uncertain

Oclemena acuminata (Whorled Wood Aster, Mountain Aster, Sharp-leaved Aster)

9/20/2013 · Mt. Watatic, Ashby, MA
≈ 11 × 7" (28 × 18 cm) ID is uncertain

Oclemena acuminata (Whorled Wood Aster, Mountain Aster, Sharp-leaved Aster)

9/18/2016 · Barred Island Preserve, Deer Isle, ME

Oclemena acuminata (Whorled Wood Aster, Mountain Aster, Sharp-leaved Aster)

7/30/2010 · Willard Brook State Forest, Blue Trail, Ashby & Townsend, MA
≈ 12 × 8" (31 × 20 cm) ID is uncertain

Oclemena acuminata (Whorled Wood Aster, Mountain Aster, Sharp-leaved Aster)

9/7/2013 · Beech Hill, Dublin, NH
≈ 10 × 7" (25 × 16 cm)

Range:

About this map...