Tradescantia gigantea [Commelinaceae]

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Scientific Name Tradescantia gigantea USDA PLANTS Symbol TRGI
Common Name Giant Spiderwort ITIS Taxonomic Serial No. 39162
Family Commelinaceae (Spiderwort) SEINet
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Description Habitat: Limestone soils in pasturelands, woodland edges, roadsides; endemic to Central Texas.
Plant: Erect perennial with straight usually unbranched stems 8 inches to 3 feet tall with 3 to 5 nodes; lower stem mostly smooth, upper densely covered with short hairs.
Leaves: Narrow linear-lanceolate, pointed leaves 4 to 14 inches long; upper leaves densely covered with short hairs, lower mostly smooth.
Inflorescence: A few to many flowers in terminal cymes, blossoms about 1 inch across with three broad, rounded petals, usually lavender-blue to pink, rarely white; yellow anthers; blossoms subtended by leaf-like bracts up to 4 inches long with a sac-like shape at the base; bracts, sepals and pedicels covered in short, fine hairs.
Bloom Period: March to May.
References: "Wildflowers of the Texas Hill Country" by Marshall Enquist and "Manual of the Vascular Plants of Texas" by Correll and Johnston.
Notes: Photos below are the white variety at McKinney Falls State Park near Austin.
BONAP Distribution Map

Texas Status:
Endemic to Central Texas

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© Tom Lebsack 2021