Psilactis brevilingulata Schultz-Bip. ex Hemsl.
Family: Asteraceae
Trans-Pecos tansyaster
[Machaeranthera breviligulata (Sch. Bip. ex Hemsl.) B.L. Turner & Horne,  more]
Psilactis brevilingulata image
Liz Makings  
Annuals, 15-75 cm. Stems and branches stipitate-glandular, more densely distally, often also with appressed or erect hairs. Distal leaf blades sessile, lanceolate to linear-lanceolate, smallest 2-10 × 0.5-1.5 mm. Involucres broadly turbinate to hemispheric, 2-4 mm. Phyllaries lanceolate to linear, slightly unequal, 1.5-3.5 × 0.2-0.6 mm, bases indurate, margins scarious. Receptacles flat to convex, 1.5-2.5 mm diam. Ray florets 15-40; laminae 1-4 × 0.2-0.5 mm. Disc florets 15-35; corollas 1.5-2.5 mm. Ray cypselae 1-1.5 mm, moderately appressed-hairy. Disc cypselae 1.3-2 mm, moderately appressed-hairy; pappi 20-25, 2-2.5 mm. 2n = 18 (Mexico). Flowering May-Oct. Fields, roadsides, stream banks, open areas in oak and pine-oak woodlands; 1300-2100 m; Ariz., N.Mex., Tex.; Mexico; South America (Colombia, Peru). In the flora area, Psilactis brevilingulata occurs in the Chihuahuan Desert regions of southeastern Arizona, southwestern New Mexico, and western Texas.

Psilactis brevilingulata image
Liz Makings  
Psilactis brevilingulata image
Liz Makings  
Psilactis brevilingulata image
Chris Roll  
Psilactis brevilingulata image
Chris Roll  
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image
Psilactis brevilingulata image