A small family of about 12 species, inhabiting temperate and cold regions of the Old and New Worlds. The characters resemble those of Naiadaceae, but the leaves are erect and rush-like.

Triglochin L

Tufted herbs, with linear, fleshy, more or less cylindrical, radical leaves, and leafless flower-stems, bearing a slender raceme or spike of small green flowers without. bracts. Perianth of 6 nearly equal segments. Fruit of 3 or 6 1-seeded carpels, each bearing a feathery stigma. About 10 species, chiefly maritime, inhabiting temperate regions.

Triglochin Palustre L

Leaves semi-cylindric, channelled, succulent, varying from 3-8 inches long, sheathing at the base. Flower-stems 6-12 inches high, bearing a terminal slender spike of small greenish yellow flowers, which are at first sessile, but very shortly pedicelled when mature. Carpels 3, united, but separating on maturity. Fruit linear-fusiform.

Marshes and damp meadows in the plains and mountains. May to September. It extends upwards to at least 8000 feet in Dauphiny and Savoy; though in England it often grows in swamps at sea-level with T. maritimum.

Distribution

Europe, Central and Northern Asia, N. America.

Scheuchzeria L

Dedicated to Scheuchzer, a Swiss botanist of the eighteenth century. The genus comprises one species only. It differs chiefly from the last genus in the stem being leafy. Flowers in racemes, small, green, bracteate, on leafy scapes. Leaves slender. Fruit composed of 3 inflated carpels.

Scheuchzeria Palustris L

A rush-like plant, 8-12 inches high. Leaves few, linear, sheathing at the base, then narrowed and almost cylindrical; the upper ones passing into short, sheathing floral-bracts. Flowers few, rather small, shortly pedicelled, yellowish green, forming a short loose, terminal raceme on a curved scape. Perianth of 6 reflexed segments.

Stamens 6. Carpels 3 (rarely 4, 5, or 6), divergent, ovate, apiculate, 2-seeded.

Peat-bogs and marshes, especially in the mountain and sub-alpine region; local. May to July.

Distribution

Switzerland (rare), France, Jura, Alps, Central Pyrenees; Central and Northern Europe; Russian Asia, N. America. Very rare in Britain.