Archidendron clypearia (Jack) Nielsen, Adansonia ser. 2, 19(1) (1979)

Synonyms
Abarema angulata (Benth.) Kosterm.
Abarema clypearia (Jack) Kosterm.
Abarema clypearia var. angulata (Benth.) Kosterm.
Abarema clypearia forma montana Kosterm.
Abarema clypearia forma prainiana Kosterm.
Abarema clypearia forma subacutum Kosterm.
Abarema clypearia var. velutina (Merr. & Perry) Verdc.
Abarema cuneadena (Kosterm.) Kosterm.
Abarema sessiflora (Merr.) Kosterm.
Albizia angulata (Benth.) Kurz
Albizia heterophylla (Roxb., non Lam.) Kurz
Archidendron clypearia subsp. sessiflorum (Merr.) Nielsen
Feuilleea clypearia (Jack) O.Kuntze
Feuillea heterophylla (Roxb., non Lam.) O.Kuntze
Feuillea subacuta (Benth.) O.Kuntze
Inga clypearia Jack
Inga dimidiata Hook. & Arnott.
Inga falcifolia Hassk.
Inga falciformis Hassk.
Inga kawahurunae Voigt
Inga subfalcata Zoll. & Mor.
Mimosa heterophylla Roxb.
Mimosa scutifera var. casai Blanco
Mimosa trapezifolia Roxb.
Pithecellobium angulatum Benth.
Pithecellobium angulatum var. intermedia Prain
Pithecellobium clypearia (Jack) Benth.
Pithecellobium clypearia var. acuminatum Gagnep.
Pithecellobium clypearia var. densiustomentella Miq.
Pithecellobium clypearia var. velutinum Merr. & Perry
Pithecellobium cuneadenum Kosterm.
Pithecellobium falcifolium (Hassk.) Hassk.
Pithecellobium montanum Benth.
Pithecellobium montanum var. microphylla Benth.
Pithecellobium montanum var. subfalcatum (Zoll. & Mor.) Miq.
Pithecellobium montanum var. variegatum Miq.
Pithecellobium parvifolium Merr.
Pithecellobium prainianum Merr.
Pithecellobium sessiflorum Merr.
Pithecellobium subacutum Benth.

Description
Shrub or much-branched tree to 23 m high; bole to 14 m high, d.b.h. 10-46 cm. Bark brown with horizontal or vertical lenticels and fine vertical cracks, underbark greenish or reddish brown; sapwood white. Branchlets strongly angled or winged by decurrent leaf-scars, puberulous or tomentose. Leaves: rachis up to 30 cm, puberulous, with glands sessile or stipitate, flat or urceolate, elliptic or circular; pinnae (2-)3- 14 pairs, puberulous, 2-15 cm long; leaflets 4-29 pairs per pinna, subsessile, opposite, chartaceous, drying dark (rarely glaucous beneath), unequalsided, (ovate-)trapezoid to oblong, 0.35-11.5 by 0.15-4.5 cm, base asymmetrically cuneate, apex acuminate, both surfaces subglabrous, puberulous to velutinous or tomentose; lower surface with papillose epiderm, main vein diagonal, number of principal lateral veins very variable, reticulation very lax, prominulous on both surfaces. Inflorescences terminal, puberulous or tomentose, consisting of pedunculate umbels or corymbs aggregated into panicles to more than 30 cm long; umbels or corymbs of c. 10 flowers, pedicel 1-4.5 mm, puberulous; floral bracts puberulous to tomentose. Flowers pentamerous, bisexual. Calyx light green. cup-shaped, campanulate or funnel-shaped, 1-3 mm, puberulous to sericeous; teeth triangular, acute, minute. Corolla creamy white or yellow, funnel-shaped or campanulate, 4-11 mm, puberulous or sericeous; lobes ovate or lanceolate, acute, 2-3 mm. Stamens creamy white or yellow, to c. 13 mm; the tube equalling the corolla-tube. Ovary solitary, puberulous or sericeous. Pod orange-yellowish outside, reddish inside, flattened, spirally twisted, somewhat sinuate between the seeds, chartaceous(- subcoriaceous), to 20 cm by 1 cm, puberulous or tomentose, veins inconspicuous, dehiscing along the ventral suture and partly along the dorsal suture. Seeds black, ovoid to ellipsoid, 6-10 by 6-9 by 6-7 mm. [from Flora Malesiana]

Ecology
Primary and secondary rain forest, coastal, mangrove forest, swamp forest, peat-swamp forest, open land, keranga forest. Often on alluvial sites, but also common on hillsides and ridges. On sandy soil and clayey or grey silt, but also on ultrabasic; altitude 0-1850 m.

Uses
Leaves used for tanning and colouring of rattan.

Distribution
Tropical Asia from India and South China to New Guinea.

Local names
Borneo: Anup-anup, Jerung, Kangkat rangkat, Kelayung, Petai kerayung, Tambilit.