Solanum elaeagnifolium Cav.

Family: Solanaceae

Pertinent Synonyms & Notes (particularly those used in California; go to GRIN for other synonyms)

Solanum obtusifolium Dunal

Pertinent Common Names (particularly those used in California; go to GRIN for other common names)

silverleaf nightshade, white horsenettle

Primary Disseminule Types

fruit (not likely to be dispersed directly to grape bunches), seed

Description (diagnostics are in brown)

Fruit a berry with numerous seeds, globose, green (immature) to yellow to orangish-brown, 8–15 mm in diameter, with persistent calyx at base.

Seed ± obovate to irregularly shaped in outline, typically notched along margin where hilum occurs, strongly compressed, cross-section narrowly elliptic (sometimes curved or C-shaped), 2.5–3.5 mm long x (1.8)2.5–3 mm wide x 0.6–1 mm thick. Surface shiny, smooth (minutely granular under magnification), light yellowish-brown to dark brown.

Hilum marginal, in notch, narrowly elliptic to ovate, ± sunken especially at the larger end of the scar, whitish or same color as testa, 0.5–0.9 mm long x 0.2 mm wide.

Similar Species

Compare to Similar Species of Solanum and Similar Species of Lycium & Physalis.

Risk Assessment (codes in yellow or red indicate cause for concern; assessments are current as of mid-2011; click AUQP, NZBORIC, or NZBPI for access to the most recent versions of these databases and possible assessment changes)