Caulis subprocumbens, subadscendens, a basi ramosissimus, superne subramosus, glaber, cr. 10-12 cm longus. Folia alterna, sessilia, caulis parte inferiore confertissima, late lanceolata, subspathulosa, apice acuta, atque aculeos plures vel singulos gerentia, margine incrassata, dentibus singulis crassis ornata, induplicata, pilosa, cr. 10-12 mm longa, 3-4 mm lata. Flores breviter pedicellati, pedicellis 4-7 mm longis; ovarium 3-loculare, hemisphaericum, subcuneatum, pilis longis, retro-flexis dense obsitum, fere 1 mm longum, item crassum; calycis laciniae anguste lanceolatae, breves, subacutae, basi paullo dilatatae, inferne squamiforme rotundae, apice raro aculeos, plures vel singulos gerentes, margine subincrassatae, edentatae, glabrae, haud involutae, cr. 3 mm longae, 1 mm latae; corolla subcampanulata, pauce laciniata, laciniis anguste ovalibus, apice rotundis, fere 7-10 mm longa, laciniis 3-4 mm longis; filamenti basis ovalis, dilatata, apice acuta, basi deplanata, fere 1.5-pIo longior quam latior; antherae elongatae, crassae, apice subobtusae, cr. 5-plo longiores quam latiores; stilus erectus, gracilis, apice haud incrassatus sed sub stigmate constrictus, corollae fere 3/4 longitudine adaequans; stigmatis lobi 3, robusti, breves, lati, apice subobtusi, baud involuti. Capsula 3-locularis, hemisphaerica, pilis longis retro-flexis dense obsita, in basi calycis laciniarum persistentium parve lobata, cr. 2-2.5 mm longa, 3-3 1/2 mm crassa, parte superiore conica, apice subacuta, calycis ladnias paullo superante.
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Like W. prostrata but leaves pilose, calyx segments lobed at base, and lower part of capsule with long, down-turned hairs.