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FOC | Family List | FOC Vol. 5 | Nyctaginaceae

2. Bougainvillea Commerson ex Jussieu, Gen. Pl. 91. 1789.
[nom. et orth. cons.]

叶子花属 ye zi hua shu

Shrubs or small trees, sometimes climbing. Branches spiny. Leaves alternate, petiolate, leaf blade ovate or elliptic-lanceolate. Inflorescences axillary, pedunculate, 3-flowered cymes, each flower subtended by a persistent, often brightly colored, ovate bract adnate to the pedicel, often grouped into terminal panicles. Flowers bisexual; pedicel adnate to the midvein or the bract. Perianth connate, limb rose or yellow, funnelform, 5-6-lobed, lobes short. Stamens 5-10, included; filaments shortly united at base. Ovary fusiform, stipitate. Style lateral, short linear; stigma fimbriate. Fruit cylindric or clavate, 5-ribbed, without sticky glands. Seed: testa thin; embryo curved, cotyledons convolute, enclosing the endosperm.

About 18 species: native to South America, widely cultivated in tropical and subtropical regions; two species (introduced) in China.

1 Leaves glabrous or sparsely pubescent; bracts oblong or elliptic, as long as flowers; perianth tube distinctly angled, hairs very short, curved away from pedicel.   1 B. glabra
+ Leaves densely pubescent; bracts elliptic-ovate, longer than flowers; perianth tube rounded, hairs copious, spreading, to 1 mm.   2 B. spectabilis

Lower Taxa


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