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Amsonia tabernaemontana Walter

Dwarf bluestar, common bluestar

KingdomPlantaePlants, but not fungi, lichens, or algae
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
OrderGentianalesGentians, coffee, gardenias, frangipani, many others
FamilyApocynaceaeDogbane family
GenusAmsoniaBluestars; named for botanist Charles Amson
Speciestabernaemontana

About plant names...

Bluestar is native to the central United States. It prefers rocky woodlands and ravines, stream borders, limestone glades, and moist sandy meadows.

Plants: Perennial, 1-3′ (30-91 cm), forming large clumps with many branches. Stems are light green, smoothly cylindrical, and hairless.

Leaves: Narrow, oval, bright green above, pale below, 2-4″ (5-10 cm) long. Leaves have a petiole (stem) up to 1″ (2.5 cm) long.

Flowers: In compact, rounded panicles. Each flower is tubular, opening to a star of five narrow pointed light blue petals ½-¾″ (1.3-1.9 cm) around. Flower centers are pale yellow. They appear in May.

Fruits: Cylindrical seed pods are 3-4½″ (8-12 cm) long, containing hard, black seeds. Pods are curved and sharp-tipped.

Online References:

Illinois Wildflowers

Fyi.extension.wisc.edu (Great photos and info)

Plants.ces.ncsu.edu

The Lady Bird Johnson Wildflower Center

References:

Clemants, Steven; Gracie, Carol, Wildflowers in the Field and Forest, Oxford University Press, 2006, p. 14

Amsonia tabernaemontana (dwarf bluestar, common bluestar)

5/22/2010 · Garden in the Woods, Framingham, Mass­a­chu­setts · ≈ 11 × 7″ (27 × 18 cm)

 

Amsonia tabernaemontana description by Thomas H. Kent, last updated 25 May 2020.

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Amsonia tabernaemontana (dwarf bluestar, common bluestar)

5/15/2010 · Garden in the Woods, Framingham, Mass­a­chu­setts · ≈ 2 × 1′ (62 × 41 cm)

Amsonia tabernaemontana (dwarf bluestar, common bluestar)

5/15/2010 · Garden in the Woods, Framingham, Mass­a­chu­setts

Amsonia tabernaemontana (dwarf bluestar, common bluestar)

5/27/2016 · Acton Arboretum, Acton, Mass­a­chu­setts

Amsonia tabernaemontana (dwarf bluestar, common bluestar)

5/27/2016 · Acton Arboretum, Acton, Mass­a­chu­setts

Amsonia tabernaemontana (dwarf bluestar, common bluestar)

5/27/2016 · Acton Arboretum, Acton, Mass­a­chu­setts

Range: Zones 3-9:

About this map...