Key to species of Huchimingia

1 Leaflets (9–)11–13(–15); flowers ca 2.5 cm long; pod with 4 wings.................................................................................. H. weizhii

1 Leaflets 3–9; flowers 1.4–2.1 cm long; pod with no wings ...............................................................................................................2

2 Lateral leaflets asymmetric; pseudoracemes, ovules 2; seeds 1–2........................................................................... H. ichthyochtona

2 Lateral leaflets symmetric; pseudopanicles, ovules 3–4; seeds (1–)2–4............................................................................................3

3 Teeth of calyx less than 2 mm long; pod valves leathery, reticulate with veins, 4–10 cm long, with a slender stipe (less than 2 mm ...................................................................................................................................................................................... H. piscidia

3 Teeth of calyx more than 3 mm long; pod valves woody, without veins, 14–27 cm long, with a relative thick stipe (more than 3 mm).................................................................................................................................................................................................... 4

4 Leaflets (3–)5–9; flowers 15–18 mm long .................................................................................................................... H. podocarpa

4 Leaflets 3 only; flowers 17–21 mm long........................................................................................................................... H. trifoliata