Collected
11 October 1991.
La Rioja, Argentina
Locality: Agro-Riojana de Jojoba plantation, N of Vinogasta. Elevation 825 m.
Environment description: Arid Monte Desert. Sandy soil of lower bajada. Growing with Larrea cuneifolia, Bulnesia retama, Cercidium praecox, Senna aphylla.
Number of plants sampled: 10