Kua ntoo yog ntoo, txog li 15 meters siab, nrog ib tug rounded crown thiab luv luv lub cev; twigs luv thiab tuab, cylindrical, densely plaub hau thaum hluas, laus tua purplish-xim av, glabrous; Lub caij ntuj no buds yog ovate, blunt ntawm lub apex, thiab densely them nrog luv luv pubescent plaub hau.
Nplooj yog elliptic, ovate mus rau dav elliptic, 4.5-10 cm ntev, 3-5.5 cm dav, sharply taw rau apex, broad wedge-shaped los yog rounded nyob rau hauv lub hauv paus, margins obtusely serrate, pubescent ntawm ob lub qhov ncauj qhov ntswg thaum hluas, glabrous saum toj no thaum laus, petioles stout, txog 1.5-3 cm ntev, pubescent, peduncle grassy, lanceolate, apex tapering, tag nrho margined, densely pubescent, thaum ntxov ntog.
Inflorescences ntawm umbrellas, nrog 3-7 paj, teem rau ntawm lub ntsis ntawm me me ceg, Pedicels 1-2.5 cm ntev, densely plaub hau; bracts membranous, linear-lanceolate, apex tapering, tag nrho margined, tsho loj, paj 3-4 cm txoj kab uas hla; sepals densely plaub hau sab nraum lub raj; sepals daim duab peb sab-lanceolate los yog daim duab peb sab ovate, 6-8 mm ntev, apex tapering, tag nrho cov npoo, densely npog ntawm ob sab sab hauv thiab sab nraud, sepals ntev tshaj sepals; paj inverted ovate, 15-18 mm ntev, luv claws ntawm lub hauv paus, dawb, liab thaum bracts tsis muab tso rau; stamens 20, filigree ntev tsis sib xws, txog ib nrab ntawm cov petals; peduncle 5, qis dua ib nrab densely them nrog grey-dawb villi, me ntsis ntev dua stamens.
Cov txiv hmab txiv ntoo yog flattened thiab spherical, ntau tshaj 2 cm nyob rau hauv lub cheeb, feem ntau tsa ntawm lub apex, sunken sepals, nyob mus ib txhis sepals, thiab luv thiab tuab peduncles. Lub sij hawm flowering yog lub Tsib Hlis, thiab cov txiv hmab txiv ntoo lub sij hawm yog los ntawm Lub Xya hli ntuj mus rau Lub kaum hli ntuj.
