Pterolobium membranulaceum

Primary tabs

Pterolobium membranulaceum


Liana. Leaves: petiole and main rachis 10-21 cm long, pubescent; pinnae 5-10 pairs, long, pubescent. Inflorescences terminal and axillary, 10-35 cm long, loosely flowered, pubescent; bracts narrowly lanceolate, c. 2 mm long; pedicels 6-8 mm, sparsely puberulous, glabrescent. Petals: standard obovate, c. 4 by 2.5 mm, with the margin slightly inflexed near the middle, glabrous outside, slightly puberulous inside and on the margins near the base; others similar one another, obovate, c. 4 by 1.75 mm, glabrous except ciliate on the margins near the base. Stamens: 7-9 mm, densely hairy except the apical part; anthers oblong, c. 0.8 mm long. Ovary c. 2 mm long, shortly stipitate, glabrous except on the placental side, 1-ovuled; style 5-7 mm. Seeds seen very young.


Asia-Tropical, Luzon present
Malesia: Philippines (Luzon).


The stamens are oblique in an open flower, similar to those of Caesalpinia.


J.E. Vidal & Hul Thol - in Bull. Mus. Nat. Hist. Nat. Ill. 1974: t. 4: 15 & 16.
Merr. - in Philipp. Govt. Lab. Bur. Bull. 1905: 41.
Merr., Sp. Blanc. 1918: 175
Vidal, Rev. Pl. Vase. Filip. 1886: 114
Vidal, Sinopsis Atlas. 1883: t. 42 G
Merr. - in Philipp. J. Sc., Bot. 1910: 52
Blanco - in Fl. Filip., ed. 3. 1878: 71