Thunbergia
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Authority
Wasshausen, Dieter C. & Wood, John R. I. 2004. Acanthaceae of Bolivia. Contr. U. S. Natl. Herb. 49: 1-152.
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Family
Acanthaceae
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Scientific Name
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Description
Description - Herbaceous or shrubby, pubescent or glabrous climbers, rarely erect, lacking cystoliths; leaves petiolate, simple, opposite, ovate to lanceolate, cordate or hastate basally, acute to acuminate apically, flowers pedicellate, mostly large and showy, blue, yellow or white, solitary, axillary or in terminal racemes; bracts 2, large, foliaceous, ovate or lanceolate; bracteoles 2, spathelike, enveloping calyx, mostly persistent; calyx cupuliform with 10-16 subulate lobes or reduced to a ring; corolla infundibuliform, tube incurved or oblique, widened above, limb spreading, 5-lobed, lobes subequal, obtuse or truncate, contorted in bud; stamens 4, didynamous, inserted near the base of corolla tube; anthers bithecous, the thecae oblong or ovoid, parallel, ± unequal; ovary fleshy, globose, bilocular, each locule with 2 collateral ovules; style long, stout; stigma bifid, entire or fringed; disc shortly annular or pulvinate; capsule globose below, abruptly beaked in upper part, 4-seeded, loculicidally dehiscent, hook-like funicles (retinacula) absent; seeds semiglohose to ovoid, glabrous, the funicle papilla-like.