Amsinckia lycopsoides Lehm.

Family: Boraginaceae

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


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

tarweed fiddleneck

Primary Disseminule Type

fruit segment

Description (diagnostics are in brown)

Fruit composed of four attached nutlets (each a dry, indehiscent, woody, one-seeded fruit segment), 1–4 of which fully develop and detach from each other at maturity.

Nutlet ovate to triangular or mildly 4-sided in outline, slightly curved inward longitudinally (C-shaped in lateral view), cross-section trigonous, 2.5–3 mm long x 2–2.5 mm wide x ca. 1.5–2 mm thick. Surface dull, covered with granular tubercles, glabrous, grayish-brown with blackish areas, with one longitudinal and several transverse ridges on abaxial face, tubercles along ridges slightly sharper than those between ridges.

Nutlet attachment scar on adaxial face, round to squarish oblong or mildly polygonal.

Similar Species

Similar Species Comparison Chart

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)