Epilobium brachycarpum C. Presl

Family: Onagraceae

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

Epilobium paniculatum Nutt. ex Torr. & Gray

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

panicled willowherb

Primary Disseminule Type

seed (with or without attached tuft of hairs)

Description (diagnostics are in brown)

Fruit a dehiscent capsule, cylindrical, straight, slender, four-chambered, opening widely at the apex by the four back-curved valves, glabrous or glandular-hairy, 1.5–3.5 cm long.

Seed bilobed-obovate in outline, somewhat dorsiventrally compressed, cross-section elliptic, 1.4–2.7 mm long x 0.8–1 mm wide x 0.2–0.5 mm thick, with a white tuft of easily deciduous, long, soft hairs (“coma”) near the apex on the ventral face. The ventral face of the seed has a central, thin, whitish line starting at the coma scar and running down to the base of the seed. Surface dull, covered with low papillae, various shades of tan to dark brown, mottled.

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)