Tall perennial glabrous herbs, with large pungent roots, leafy flowering stems and rather large white flowers in terminal racemes, the pedicels slender. Silicles short, little, if any, longer than wide. Style short; stigma subcapitate. Seeds few, in 2 rows in each cell. Cotyledons accumbent. [Name from the Celtic, referring to the favorite (saline) habitat of the plant.]

A genus of a few species, natives of Europe and Asia, the following typical.

1. Armoracia Armoràcia (L.) Britton. Horseradish

Fig. 2034

Cochlearia Armoracia L. Sp. Pl 648. 1753- Nasturtium Armoracia Fries; A. Gray, Man. Ed. 2, 31.

1856. Roripa Armoracia A. S. Hitchcock, Spring Fl. Manhattan 18. 1894. Armoracia rusticana Gaertn. Meyer & Schreb. Fl. Wett. 2:

426. 1800.

Erect, 2°-3° high, from deep thick roots. Basal leaves on thick petioles 6'-12' long, the blade oblong, often nearly as long, crenate, sinuate or even pinnatifid, rough but glabrous; upper leaves smaller, sessile, narrowly oblong or lanceolate, crenate or dentate; racemes paniculate, terminal and axillary; pedicels very slender, ascending, a"-3" long; flowers white, showy, 2"-4' broad; pods oblong or nearly globose; style very short Escaped from gardens into moist grounds, especially along streams. Frequent. Adventive from Europe. The roots furnish the well-known sauce. Summer.