Stephanomeria exigua subsp. exigua Nutt.
Family: Asteraceae
Schott's wirelettuce,  more...
[Lygodesmia bigelovii (Gray) Shinners,  more]
Stephanomeria exigua subsp. exigua image
Sue Carnahan  
Heads in paniculiform arrays. Peduncles 10-40 mm, glabrous or sparsely glandular . Calyculi of appressed bractlets. Involucres glabrous or sparsely glandular. Florets 5-8. Cypselae 2.6-3.2 mm; pappi of 5-13 white to light tan bristles (widened bases persistent, bases connate in groups of 2-4, if bristles 5, breaking off completely, bristles plumose on distal 50%). 2n = 16. Flowering May-Jul. Sandy soils, deserts, sagebrush, creosote bush, pinyon-juniper woodlands, Joshua Tree communities; 100-2000 m; Ariz., Calif., Colo., Idaho, Nev., N.Mex., Oreg., Tex., Utah, Wash; Mexico (Baja California). Subspecies exigua is morphologically variable. Plants with pappi of 5 bristles (often called Stephanomeria pentachaeta) are found throughout its distribution; they are fully interfertile with plants having more bristles. Stephanomeria schottii A. Gray from southern Yuma County, Arizona, described as having a pappus of 4-6 bristles, 'sparsely short-plumose toward the summit,' appears to be a synonym of subsp. exigua.

Stephanomeria exigua subsp. exigua image
Kirstin Phillips  
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Jessica Condon  
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image
Stephanomeria exigua subsp. exigua image