Radix lignosa, ramosa. Caulis lignosus, erectus, ramosus, superne, praecipue circa axillos, pilis albis patentibus hirtus, pedalis et ultra. Rami oppositi, hirti. Folia opposita, lanceolato-linearia, subulato-acuminata, pollicaria, basi connata brevissime stipulata, margine parum revoluto, acumine parum recurvo, subcartilagineo, basi coarctata pilis sparsis ciliata,pagina superiore glabra, splendente, inferiore pallida albescente, nervo prominulo. Ex axillis folia minora et ramuli. Flores axillares, 2-4 subverticillato-spicati, pentandri, externe hirsuti. Calyx minutissimus. Corolla monopetala, 5 partita, laciniis lanceolato-linearibus, tubulo duplo longioribus. Stamina 5, longitudine corollae; antherae oblongae parum exsertae, filamentis capillaribus impositae.
Densely hairy shrub to 1.5 m. Leaves decussate, linear-lanceolate, often discolorous. Flowers in axillary clusters, 5-lobed, yellowish.