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Giliastrum species [Polemoniaceae]

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Scientific Name Giliastrum incisum (Gilia incisa) USDA PLANTS Symbol GIIN6
Common Name Cut-leaf Gilia, Split-leaf Gilia ITIS Taxonomic Serial No. 845231
Family Polemoniaceae (Phlox) SEINet
Reference
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Description Habitat: Dry, gravelly, limestone or sandy soils.
Plant: Erect perennial, biennnial or annual, 10 to 20 inches tall, much-branched in top half.
Leaves: Alternate leaves 3/8 to 1-1/2 inches long, borne mainly below midstem on long petioles; lower ones deeply, unsymmetrically incised; upper leaves less so becoming almost linear and smaller.
Inflorescence: Small star-shaped flowers 1/4 to 3/8-inch across usually borne single on peduncles 1 to 1-1/2 inches long; 5 light purple-blue, spreading petals; protruding white style and yellow anthers.
Bloom Period: April to June.
References: "Manual of the Vascular Plants of Texas" by Correll and Johnston and "Wildflowers of the Texas Hill Country" by Marshall Enquist.
BONAP Distribution Map

Texas Status:
Native
Scientific Name Giliastrum rigidulum (Gilia rigidula, Gilia rigidula ssp. rigidula) USDA PLANTS Symbol GIRI3
Common Name Blue Gilia, Bluebowls ITIS Taxonomic Serial No. 845234
Family Polemoniaceae (Phlox) SEINet
Reference
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Description Habitat: Dry, rocky, caliche or gypsum soils in grasslands, desert scrub, and woodlands.
Plant: Low-growing perennial 4 to 10 inches tall, many spreading branches from base; fine glandular-hairy stem and leaves.
Leaves: Lower leaves unsymmetrically dissected into a few oblong, often dentate segments, becoming linear or thread-like above; up to 1-3/8 inches long.
Inflorescence: Flowers 3/8 to 3/4-inch across on peduncles about 1 inch long; 5 violet-blue, overlapping, spreading petals, yellow center; protruding white style and bright yellow anthers.
Bloom Period: April to August; sometimes in fall.
References: "Manual of the Vascular Plants of Texas" by Correll and Johnston, "Wildflowers of the Texas Hill Country" by Marshall Enquist and SEINet.
BONAP Distribution Map

Texas Status:
Native

© Tom Lebsack 2021