Anagallis arvensis L.
Family: Primulaceae

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)

scarlet pimpernel

Primary Disseminule Type

seed

Description (diagnostics are in brown)

Fruit a globular capsule dehiscing near the equator (the top opening like a lid) at maturity to release the many seeds.

Seeds polymorphic based on position within fruit, obpyramidal to 3–5-sided, angles acute, 1–1.5 mm long (the longest axis) x ca. 1 mm wide x 0.7–1 mm thick (from basal hilum to flat apex). Surface black to brown, with light brown ornate tubercles looking scaly and almost forming a reticulum over entire surface (except for hilum).

Hilum dark brown, lanceolate, up to 0.7 mm long, covering most of the base of the seed.

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, NZBORIC, NZBPI