Tradescantia pinetorum Greene
Aneilema pinetorum (Greene) Matuda
Pine spiderwort, pinewoods spiderwort
Spiderworts are named for the resemblance of their leaves to a squatting spider. The genus Tradescantia is named for John Tradescant, a gardener for Charles I of England. There are about 71 species.
Identification: Plants are 8-20" (20-50 cm) high. Flowers are blue to purple, about ¾" (1.9 cm) in diameter, with six stamens with yellow anthers. Small hairs are on various parts of the flower. All petals are equal in size. Leaves are long and narrow, like grass blades.
Here are a few species:
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|Plant||Up to 24" (60 cm) tall. Has smooth stems with several joints||8-20" (20-50 cm) high||8-36" (20-91 cm) high|
|Flowers||Bright blue to rose or purple, about ¾" (1.9 cm) in diameter, with three petals and six stamens with yellow anthers.||Blue to purple flowers about ¾" (1.9 cm) in diameter, with six stamens with yellow anthers. Small hairs are on various parts of the flower. All petals are equal in size.||Blue or purple, ¾-2" (1.9-5 cm) in diameter, with three petals and six stamens, each with yellow anthers. There are two bracts beneath each flower|
|Leaves||Long and narrow, with a whitish covering||2-5" (5-12 cm) long, sometimes much longer, and narrow, like blades of grass||Long and narrow, dark or olive green, with parallel veins, like wide grass blades. Up to 12" (30 cm) × 1" (2.5 cm)|
USDA Zones: 4-9
|Habitats||Plains, prairies, disturbed sites||Open brush, woods and wooded slopes, especially pine woods||Prairies, thickets, woodland edges, power line clearences|
Tradescantia pinetorum on Vascular Plants of the Gila Wilderness
Tradescantia pinetorum at Southeastern Arizona Wildflowers and the Plants of the Sonoran Desert
Tradescantia pinetorum at the Lady Bird Johnson Wildflower Center
Tradescantia pinetorum on SEINet—the Southwest Environmental Information Network
Tradescantia pinetorum on eFloras
Spellenberg, Richard, National Audabon Society Field Guide to Wildflowers, Western Region, Alfred A. Knopf, 2001, p. 471
Niehaus, Theodore F., Ripper, Charles L., Savage, Virginia, Peterson Field Guides: A Field Guide to Southwestern and Texas Wildflowers, Houghton Mifflin, 1984, p. 272
Tradescantia pinetorum description by Thomas H. Kent, last updated 16 Sep 2020.