Tên Khoa học: Capparis gialaiensis SyTên tiếng Anh: Tên tiếng Việt: Cáp gia lai; Bún gia laiTên khác:
Scandent shrubs, up to 10 m high. Innovations hairy. Spines 0.5-1 nun long, recurved downwards. Petiole 1.2-1.5 cm long, hairy; leaf blade elliptic to ovate, 5-5.5 x 3-3.5 cm, abax- ially hairy on midvein and secondary veins, adaxially glabrous, young ones yellowish green, dark green when older; midvein abaxially raised, adaxially flat; secondary veins 3-5 on each side of midvein; base round or acute; apex acuminate, ca. 0.5 cm long. Inflorescence corymbs, axillary or terminal, 9-11 flowered; peduncles 2-2.5 cm long, hairy; pedicels 1.5-1.6 cm long, hairy. Flower buds globose, ca. 2 mm. Sepals 6-6.5 x 3-3.5 mm long, outside pubescent, inside glabrous; sepals of outer whorl ovate; sepals of inner whorl spatulate. Petals white, oblong, 12-13 x 4-5 mm, hairy on surface and margin. Stamens 21-22; filaments 3.7-4 cm long, glabrous, white; anthers ca. 1 mm long. Gynophore 3-3.5 cm long, glabrous. Ovary ellipsoid, ca. 2 x 1 mm, yellowish green, glabrous. Fruits globose, 3.5-3.8 cm in diam, purple to dark violet when mature, surface glabrous. Seed 1-4 per fruit,1.5-1.7 x 1.2-1.3 cm, black. Flowering in May- July, fruiting in May-November.
Capparis gialaiensis grew on the basaltic soils of the small hillocks in the open, secondary forest areas of Son Lang Commune in association with Betula alnoides, Dicranopteris splendida, Mimosa pudica, Saccharum spouta- neum,Stixis ovata subsp. fasciculata, MeJastoma sp. and several ferns, at 810-910 m a.s.l. We observed only 15-20 individuals. It appears that the population could be easily affected by human activities.