Characters;"B. soffiae";"B. buenopolensis";"B. archeri";"B. purpurascens"
Habitat;"Cerrado rupestre";"Cerrado rupestre";"Cerrado sensu lato";"Cerrado sensu lato"
Stem;Acaulescent;Acaulescent;"Usually above ground";"Above ground"
"Rachis length";"45–79 cm";"25–40 cm";"66–72 cm";"84–150 cm"
"True petiole length";"0–3.0 cm";"0.8–5.0 cm";"2.0–15 cm";"0–40 cm"
"Number of pinnae";33–42;25–29;28–44;38–61
"Prophyll length";"6.5–14 cm";"5–6.5 cm";"16–30 cm";"12–30 cm"
"Peduncular bract";Glaucous;Glossy;"Glaucous or rarely lepidote";Glaucous
"Peduncular bract length";"27.5–54 cm";"10–20 cm";"30–80 cm";"70–105 cm"
"Peduncular bract’s inflated portion";"18–29 cm × 3.5–8.0 cm";"6–10 × 1.8–2.3 cm";"30–39 × 1.3–8.0 cm";"61–81 × 6.0–13.0 cm"
"Peduncle length";"8.0–15 cm";"9.5–15.5 cm";"24–40 cm";"35–60 cm"
Peduncle;Herbaceous;Woody;Herbaceous;Herbaceous
"Peduncular bract vs inflorescence size";Similar;Different;Similar;Similar
"Inflorescence axis";"11–28 cm";"4.0–7.5 cm";"20–30 cm";"60–64 cm"
"Rachilla number";27–32;4–7;15–35;"50 or more"
"Rachis and rachillae colour";"Yellowish-green to rarely purple";"Dark purple";"White tinged with purple";"Yellowish-green to white tinged with purple"
"Colour of flowers";"Light purple";"Dark purple";"Reddish-yellow to purple";"Yellow to purple"
"Distance of the flowers on rachillae";Congested;Congested;Lax;Lax