Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.
Search native plant database:
Marcus, Joseph A.
Thelesperma filifolium var. filifolium
Thelesperma filifolium (Hook.) A. Gray var. filifolium
Stiff greenthread, Showy Navajo tea, Greenthread
Synonym(s): Thelesperma trifidum
USDA Symbol: thfif
USDA Native Status: L48 (N)
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.
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
, TX Native Distribution:
to Mex., including parts of AR, OK
& throughout TX Native Habitat:
Dry hills & plains. In
East Texas and the Plains Country.
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
Herbarium Specimen(s)NPSOT 0819
Collected Mar 12, 1994 in Bexar County by Harry Cliffe
Record Last Modified: 2009-02-20
Research By: LAL, LAS