Marsilea drummondii

Rhizome sometimes woody, densely hairy when young. Fronds solitary or in clusters at nodes, 1–3 cm apart. Stipe usually 3–30 cm long. Leaflets equally arranged, broadly obovate-cuneate, 5–30 mm long, both surfaces densely hairy or, when aquatic, almost glabrous (especially on upper surface), grey-green; outer margin either rounded and entire or deeply scalloped. Sporocarps single or clustered, oblong-ellipsoid, 6–9 mm diam., brown, smooth to slightly ribbed, densely hairy (hairs sometimes 'duck-tailed' into a point at distal end of sporocarp, obscuring the rounded end), upper tooth conical, lower tooth usually longer and conspicuous, rounded; stalks unbranched, 2–10 times longer than sporocarp.