Annual erect herb 0,1-0,6 (-0,8) m tall, unbranched or branched shortly above the base; stems shortly retrorse and some­what crisped tomentose. Leaves subsessile or shortly petiolate; blade linear to linear-lanceolate, 25—70 x 5 — 10 mm, sparingly to fairly densely pilose, apex subacute, base attenuate, margin with a few small teeth in the upper half. Inflorescence of (3 — ) 4—10 spaced verticils, often starting near the base of the plant; verticils dense, few- to many-flowered, 10—22 mm in diam.; brac­teoles numerous, filiform, arcuate-erect, villous, 5—8 mm long, spine-tipped. Calyx hispid, widest at the oblique mouth, 5 mm long at flowering, enlarging to 8—10 mm, subequally 8—10-toothed; teeth deltoid-subulate to filiform, spine-tipped, eventual­ly 3—4 mm long. Corolla small, white; upper lip oblong, 2,5—3 mm long; lower lip 4—5 mm long. Ato/e?s2,5mmlong. Fig. 5:4.