Very distinctive whitish-pubescent annuals (in our region). The flowers are most unusual with the persistent tepals connate into a strongly woolly (especially in fruit) tube and the stamens with the filaments united into an elongate membranous tube with points prolonged between the anthers and exceeding them.

1. Bracteoles pubescent along the midvein and near the apex; plants mostly ca. 60-90 cm tall.

F. floridana

1. Bracteoles glabrous; plants short, typically 20-50 cm tall.

F. gracilis