Taxonomic key of Capparidastrum subgen. Pulviniglans distributed in Colombia

1. Blades, petioles and rachis glabrous throughout. Petals greenish to white ........................................................................................2

1’. Blades short pilose beneath, petioles and rachis short pilose. Sepals and petals purple ....................................................................6

2. Pedicels ≤ 6 cm, seeds smaller than 15 mm .......................................................................................................................................3

2’. Pedicels ≥ 8 cm long, seeds lager than 18 mm ...................................................................................................... C. megalospermum

3. Number of stamens ≥ 40 long, gynophore ≥ 60 mm long .................................................................................................................4

3’. Number of stamens ≤ 35 long, gynophore ≤ 40 mm long ............................................................................................ C. osmanthum

4. Number of stamens ≥ 35, anthers ≥ 4.5 mm long ..............................................................................................................................5

4’. Number of stamens ≤ 20, anthers ≤ 3–3.5 mm long ......................................................................................................... C. dugandii

5. Number of stamens 35–71, anthers 4.5–5.3 mm long, episepals glands 5–8 mm long ............................................ C. bonifazianum

5’. Number of stamens 80–130, anthers 6–7 mm long, episepals glands 2.5–4 mm long ............................................ C. macrophyllum

6. Petals ≤ 16 mm long, stamens ≤ 60 mm long and gynophore ≤ 70 mm long ......................................................... C. cuatrecasanum

6’. Petals ≥ 20 mm long, stamens ≥ 100 mm long and gynophore ≥ 100 mm long ........................................................ C. grandiflorum