Marcus, Joseph A.
Thelesperma filifolium var. filifolium (Hook.) Gray
Stiff greenthread, Showy Navajo tea, Greenthread
Asteraceae (Aster Family)
This winter annual,
or short-lived perennial,
is often found growing in colonies. Its slender, branched stems, 10-30 in. tall, bear leaves divided into thread-like segments. In bud,
the flower heads droop; when fully opened, they are erect and upright. The yellow, daisy-like flowers occur on delicate, leafless stalks.
Stiff Greenthreads bloom period is often shortened by an insect larva that consumes the buds.
Image Gallery: 11 photo(s) available
Plant CharacteristicsDuration: Annual Habit: Herb Fruit: Size Class:
Bloom InformationBloom Color: Yellow
Bloom Time: Feb , Mar , Apr , May , Jun , Jul , Aug , Sep , Oct , Nov , Dec
AR , KS , LA , MS , MO , OK , TX Native Distribution:
S. SD to Mex., including parts of AR, OK & throughout TX Native Habitat:
Dry hills & plains. In East Texas and the Plains Country. USDA Native Status: L48(N)
Growing ConditionsWater Use:
Low Light Requirement:
Sun Soil Moisture:
Dry Soil Description:
Dry, rocky or sandy soils. Limestone-based, Sandy, Sandy Loam, Medium Loam, Clay Loam, Clay, Caliche type. Conditions Comments:
The common name greenthread, refers to the thread-like appearance of the foliage. Many butterflies feed on this nectar
plant that blooms profusely from April to June.
BenefitUse Ornamental: Wildflower meadow, Pocket prairie
Use Wildlife: Nectar-Bees, Nectar-Butterflies, Nectar-insects, Seeds-Granivorous birds.
Conspicuous Flowers: yes
Larval Host: Dwarf Yellow butterfly.
Nectar Source: yes
Deer Resistant: Minimal