Vasilis Teodoridis:
Fabaceae | Peltophorum
2. Peltophorum tonkinense (Pierre) Gagnepain in Lecomte; Fl. Indo-Chine. 2: 192. 1913.
?? yin zhu
Baryxylum tonkinense Pierre; Fl. Forest. Cochinch. t. 391C. 1899; Peltophorum dasyrhachis (Miquel) Kurz ex Baker var. tonkinense (Pierre) K. Larsen & S. S. Larsen.
Trees; 12-20 m tall. Young parts and inflorescences densely ferruginous hairy; glabrescent; old branches with small ferruginous lenticels. Leaves 15-35 cm; rachis 8-25 cm; petiole robust; 3-15 cm; pinnae 6-13 pairs; opposite as leaflets; rachis 4-9 cm; sulcate; inflated at base; leaflets 5-14 pairs; abaxially pale green; adaxially deep green; oblong; 1.5-2 x 0.6-1 cm; adaxially smooth; ferruginous hairy on midvein at first; glabrescent; base attenuate; oblique; apex rounded; emarginate; or mucronate. Racemes subterminal; 8-10 cm. Flowers fragrant; yellowish; large. Pedicels 1-1.5 cm; ferruginous hairy. Receptacle discoid. Sepals subequal; oblong; 8-9 mm; lowest one narrower. Petals obovate-orbicular; ca. 1.5 cm; clawed; margin undulate; ferruginous villous on midvein on both surfaces. Filaments ca. 1 cm; inflated at base; densely ferruginous hairy; anthers oblong; ca. 3.5 mm. Ovary with short stalk; compressed; ferruginous hairy; 2- or 3-ovuled; style filiform; 2-3 x as long as ovary; stigma capitate. Legume reddish brown; fusiform; 8-13 cm; 2.5-3 cm at middle part; thinly leathery; asymmetric at both ends; acuminate; hairy at first; smooth and glabrous when old; winged on both sides; wings 5-7 mm wide. Seeds 3 or 4; yellowish when mature; compressed; obliquely obovoid; ca. 14 x 6 mm. Fl. Mar-Jul; fr. Apr-Oct.
Sparse forests; mountain slopes; 300-400 m. Fujian; Hainan [Cambodia; Laos; Vietnam].