See jim-botany's observation:
http://www.inaturalist.org/observations/1536410
This is best match I found. Just looked for seed pods (06-08), but none present. Donkey grazing in the area probably ate.

Using: http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=130515, I key as:
1 → Tepals purple to light blue, white, lavender, pink, or magenta, occasionally yellow; seeds globose to obconic, depression absent or occasionally slight; filaments connate ± full length (only basally in S. rosulatum) → 6 Perianth campanulate basally, flaring distally; plants annual or occasionally short-lived perennial; tepals lavender, pink, magenta, yellow, or occasionally white. → 7 Stems with 1–2(–3) nodes; filaments connate basally or occasionally to 1/2 length, inflated basally, stipitate-glandular on proximal 0.5–0.8 mm; capsule ± globose, bicolored, sutures and sometimes apex purplish, intrasuture surface tan. → Sisyrinchium rosulatum