Table 1. Morphological differences among Dicliptera acuminata, D. peruviana, D. montana, D. mucronata and D. ruiziana.

Species	D. acuminata	D. peruviana	D. montana	D. mucronata	D. ruiziana
Plant height	Ca. 60 cm	Ca. 60 cm	Ca. 50 cm	60–130 cm	Ca. 30 cm
Stem	Erect, branched, sulcate, hirsute	Erect, branched, sulcate, hirsute	Erect, branched, sulcate, pubescent	Erect, branched, sulcate, pubescent	Erect, branched, sulcate, pubescent
Leaf blade	Oblong-lanceolate, 3.5–7.0 × 1.5–2.5 cm, villous	Ovate, 3.5–6.0 × 2.5–4.0 cm, pubescent	Ovate, 1.0–1.5 × 0.8–1.0 cm, pilose when young, then glabrescent	Ovate, 3.0–3.5 × 1.5–2.0 cm, scarcely pilose	Ovate, 1.0–1.5 × 0.8–1.0 cm, pubescent
Leaf apex	Acuminate-acute	Acute	Acuminate	Acuminate-acute	Acute
Inflorescence	Verticillaster	Verticillaster	Spikelike thyrse	Verticillaster	Pedunculate cyme
Bracts	Lanceolate-linear, ciliate	Ovate, ciliate	Spatulate, gland-tipped pilose	Obovate-rhombic, pilose	Obovate, gland-tipped pilose
Bracteoles	Subulate, ciliate	Subulate,	Hyaline, asymmetrical, minute pilose	Linear-subulate, pilose	Subulate
Calyx lobes	Subulate, ciliate	Linear, hirsute	Lanceolate, minute pilose	Linear-lanceolate, margin minutely pubescent	Lanceolate, gland-tipped pilose
Corolla	Purple, outside pubescent	Purple, outside pubescent	Pale purple, outside pilose	Purplish red, outside pilose	Pink, outside pubescent
Style	scarcely pilose	glabrous	scarcely pilose	glabrous	scarcely pilose