Convolvulus arvensis L.
Family: Convolvulaceae

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

none

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

field bindweed

Primary Disseminule Type

seed

Description (diagnostics are in brown)

Fruit a capsule with 2–4 seeds, globose-ovoid, inflated, (4)6–8 mm in diameter.

Seed wedge-shaped (sides flat to concave), obovate in outline, slightly dorsiventrally compressed, cross-section trigonous to sector-shaped, (2.5)3–5 mm long x 2–3(3.5) mm wide x 2–3 mm thick. Surface dull, light to dark grayish- or orangish-brown, usually covered with small, rough, irregular and often lighter-colored tubercles.

Hilum oval, ± sunken, terminal, lying perpendicular to long axis of seed, reddish or same color as testa, 0.3–0.5 mm long.

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)

AUQP, AUWP, NZBORIC, NZBPI