subsect. Phellotes Robson

Arbores parvae vel frutices vel fruticuli vel raro suffrutices vel herbae perennes. Folia libera vel binatim conjuncta, sessilia vel rariore breviter pseudopetiolata, plana vel margine recurva vel incurva vel omnino revoluta vel incurva vel involuta, apice interdum concava vel cucullata, 1-7-nervia venatione pinnata vel simplici, ut videtur basi decidua cicatricem lunarem vel circularem relicta vel omnino persistentia et interdum marcescentia vel rarissime supra basin decidua (Sp.3). Inflorescentia l(2-5)-flora ramificatione pseudo-dichotoma vel laterali vel (-15)-flora ramificatione cymosa (Sp.14). Flores 5-30 mm in diameter, stylis 3 vel raro 4. Typus: H. phellos Gleason (Species 3-35).