Lobostemon oederiaefolius Dc. & A.Dc.

Resprouting shrub, 40-100 cm high. Branches caulous, antrorse, herbaceous branches hairy, woody branches glabrescent. Leaves herbaceous, cauline, transversely applanate, longitudinally straight to slightly naviculate, dead basal leaves not persistent, (15-)20-30(-35) x (2-)3-5(-6) mm, narrowly oblong to lanceolate, adaxially and abaxially copiously hairy, indumentum spinous, hairs similar in length, trichomes pustular; leaf margin entire; apex acute; mid-vein abaxially unobtrusive. Inflorescence of many flowered, compound cincinni, young flowering axis compact, flower buds loosely arranged to form a globose unit, spreading slightly in fruiting stage. Bracts (5-)7-14(-15) x (2-)3-4(-6) mm, lanceolate. Flowers medium to large (corolla 15-25 mm or > 25 mm long), more than three per cymule, funnel-shaped. Sepals lanceolate, half of corolla length, similar in width, mostly free, adaxially sparsely or copiously hairy, if sparsely hairy then hairs more or less evenly spread across the whole surface, if copiously hairy then non-velutinous, abaxially sparsely hairy, hairs unevenly spread across the whole surface, largely confined to margin and mid-vein; young apices incurved to applanate, brown trichomes on the adaxial surface present. Petals dissimilar, the anterior petal lobes larger than the rest, posterior petals ca. 23-24 mm long, posterior petal lobes ca. 4 mm long, anterior petals ca. 27-28 mm long, anterior petal lobes ca. 5-6 mm long, predominantly violet-blue; abaxially hairy, hairs evenly spread. Stamens dissimilar in length, included in adult flowers; anthers dorsifixed; filaments shortly adnate (<5 mm) above staminal scales. Staminal scales inserted well below the throat of the corolla tube, 3-4 mm above the base of the corolla tube, reduced to ridges, rounded, lateral lobes wanting, villous, area between scales also hairy. Gynoecium 2-carpelled; ovary superior, 4-locular (via false septa); nectariferous disc present, longitudinally convex, transversely 4-angled; Style median sections hairy. Mericarpids ovoid-trigonous; tuberculate; hairs absent; lateral ridges prominent; dorsal side acute; dorsal keel prominent; ventral keel inconspicuous.