Description from Flora of China
Perennial, stemless or pilose stemmed. Rhizome internodes inconspicuous. Leaves basal or along stem, opposite; petiole 2-9 X 0.4-1 cm; leaf blade oblong ovate to ovate, obovate, or narrowly elliptic, 8-26 X 4.5-14 cm, papery, adaxially pilose, eglandular, abaxially pubescent, pilose along veins, base cuneate to broadly cuneate, margin nearly entire to shallowly crenate, apex acute; lateral veins 4-6 on each side of midrib, conspicuous to inconspicuous. Cymes 7-28-flowered; peduncle 20-35 cm, puberulent; bracts 2, free, narrowly triangular to navicular-triangular, 1-1.6 cm X 3-4 mm, puberulent to pilose, margin entire, apex attenuate. Pedicel 1.2-3 cm, glandular puberulent. Calyx 5-sect from base; segments equal, narrowly triangular to lanceolate-linear, 1-1.5 cm X ca. 2 mm, puberulent, margin entire, apex attenuate. Corolla blue-purple, with 1 yellow spot below adaxial lip, 3.2-4.5 cm, outside sparsely glandular puberulent, inside glandular puberulent on yellow spot; tube nearly tubular, 2.4-3.5 X ca. 1 cm; adaxial lip 3.5-4 mm; abaxial lip 8-10 mm. Filaments ca. 1 cm, puberulent near apex; anthers fused by entire adaxial surfaces, ca. 2.2 mm, glabrous; staminodes 3, central 1 ca. 0.8 mm, laterals 5-6 mm. Pistil 2.9-3.2 cm, densely glandular puberulent; ovary 2-2.3 cm. Stigma narrowly elliptic, 2.2-3 mm, undivided. Immature capsule ca. 3 cm. Fl. Nov.
After publication of the family treatment for the Flora of China,
this was treated as Primulina flavimaculata (W. T. Wang) Mich. Möller & A. Weber (Taxon 60: 782. 2011).
* Known only from cultivation. First cultivated at the South China Institute of Botany in Guangzhou, Guangdong; possibly introduced from Guangxi.