Texas
Wildbuds

Amsonia palmeri

(Palmer's Bluestar)

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Amsonia palmeri, El Solitario, Big Bend Ranch State Park 3949

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Amsonia palmeri, El Solitario, Big Bend Ranch State Park 3952

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Amsonia palmeri, El Solitario, Big Bend Ranch State Park 3950

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Amsonia palmeri, El Solitario, Big Bend Ranch State Park 3951

Scientific Name Amsonia palmeri USDA PLANTS Symbol AMPA5
Common Name Palmer's Bluestar ITIS Taxonomic Serial No. 30143
Family Apocynaceae (Dogbane) SEINet
Reference
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Description Habitat: Sandy or rocky soils in open areas the Trans-Pecos region.
Plant: Erect perennial 12 to 32 inches tall, multiple smooth to pubescent (covered with small hairs) stems from woody base.
Leaves: Alternate, narrowly oblong-lanceloate to linear-lanceolate up to 2-3/4 inches long; lower leaves broader.
Inflorescence: Congested terminal cluster of small, very pale blue to white flowers from 1/4 to 1/2-inch across inch across; corolla tube (below lobes) 3/8 to almost 3/4-inch long opening into 5 lobes with small hairs on edges arranged in a star shape. Corolla tube is swollen in the middle and constricted at its opening.
Bloom Period: March to May.
References: "Manual of the Vascular Plants of Texas" by Correll and Johnston and SEINet.
BONAP Distribution Map

Map Color Key
Texas Status:
Native

Banner photo of Lupinus ssp. by Rick Capozza, Austin TX

© Tom Lebsack 2023