Lepidium latifolium L.
Pertinent Synonyms & Notes (particularly those used in California; go to GRIN for other synonyms)
Cardaria latifolium (L.) Spach
Pertinent Common Names (particularly those used in California; go to GRIN for other common names)
Primary Disseminule Types
fruit, fruit segment, seed
Description (diagnostics are in brown)
Fruit a tardily dehiscent, 2-chambered silicle with 1 seed per chamber, sub-globose to ovoid or broadly elliptical in outline, compressed, (1.5)1.8–2.4(2.7) mm long x (1.3)1.5–2.2 mm wide x 0.6–0.8 mm thick, not apically winged, glabrous or sparsely pilose. Stylar/stigma remnant (when present) 0.05–0.15 mm long.
Seed oblong, slightly compressed, (0.8)1–1.2 mm long x 0.5–0.9 mm wide x 0.2–0.5 mm thick, unwinged. Surface dull to sparkly (the latter under magnification), rough (granular), dark orangish-brown with a darker hilar end, with a faint longitudinal groove outlining the position of the radicle on each side of the seed.
Hilum in strongly flattened basal notch filled with yellowish funicular remnant.
Embryo bent, cotyledons incumbent, endosperm lacking.
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