Nasturtium floridanum (Al-shehbaz & Rollins) Al-shehbaz & R.A.Price

Plants usually glabrous throughout, rarely sparsely pubescent. Stems 1.5-9 dm. Cauline leaves: petiole not winged, base not auriculate; blade 3-5(-7)-foliolate, (1.5-)3-7(-10) cm; lateral leaflets petiolulate, rachis not winged, blade often much smaller than terminal; terminal leaflets (or simple blade) subreniform, orbicular, ovate to oblong, or obovate, 0.5-3.5 × 0.5-3 cm, base obtuse, subcordate, rounded, or cuneate, margins repand, entire, or, rarely, obtusely dentate, apex obtuse or rounded. Fruiting pedicels divaricate, straight or slightly recurved, 5-15 mm. Flowers: sepals 2-3 × 1-1.5 mm; petals white, spatulate, 4-5 × 1.5-2 mm, apex rounded; filaments 2-3 mm; anthers 0.6-0.9 mm. Fruits 1.5-3 cm × 0.9-1.2 mm; ovules 34-50 per ovary; style 0.5-2.5 mm. Seeds uniseriate, light or yellowish brown, ovoid, 0.6-0.8(-0.9) × 0.4-0.7 mm, minutely reticulate with 400-500 areolae on each side. 2n = 32.

It is a subtropical plant. It grows in wet places below 50 m above sea level.