Gnaphalium palustre Nuttall

Family: Asteraceae, Tribe: Gnaphalieae

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

Filaginella palustris (Nuttall) Holub, Gnaphalium heteroides Klatt

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

western marsh cudweed

Primary Disseminule Type

fruit (usually with pappus missing)

Description (diagnostics are in brown)

Fruit a cypsela, oblong, plump to somewhat puckered, sometimes slightly dorsally curved base towards apex, mildly compressed, cross-section ± elliptic to oblong to 4-sided, 0.5–0.7 mm long x 0.1–0.3 mm wide x ca. 0.1 mm thick. Surface light brown (darker at the ends), smooth to papillate, glabrous, with a light sheen, rarely with 1+ thin longitudinal ridges. Pappus of whitish bristles, early deciduous, falling separately.

Style base inconspicuous, pointy, whitish, apical scar ca. 0.1 mm across.

Fruit attachment scar basal, white, shiny, ring-like.

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)