Flora of the Hawaiian Islands
Literature for Chamaecrista nictitans
Wagner et al., 1990, 1999. Literature for Chamaecrista nictitans var. glabrata
Wagner et al., 1990, 1999.
   Fabaceae -- The Pea Family Bibliography
      Chamaecrista nictitans
General Information
DistributionNative to the Neotropics, now widely naturalized.
Annual or weakly perennial herbs 5-20 dm tall.
Leaves 2-10(-14) cm long, leaflets 10-26(-31) pairs, usually folding within a few minutes of collection if not already folded, linear to linear-oblanceolate, 4-24 mm long, ca. 1.4 mm wide, glabrous or lower surface sometimes puberulent, 1-2 petiolar nectaries present, saucer-shaped or cup-shaped, 0.4-1.2 mm in diameter, stipules lanceolate, 5-15 mm long, 5-13-nerved.
Flowers 1 to few in very short axillary racemes, bracteoles lanceolate, ca. 2-2.5 mm long, pedicels 1.5-8 mm long, thickened and 2-12 mm long in fruit; calyx lobes linear-lanceolate, 5-7.5 mm long; petals yellow, 2-3 of them narrowly obovate to oblanceolate, 5-7 mm long, 1 petal obovate-cuneate, 6-10 mm long; stamens 10.
Pods linear-oblong, ± falcate, 2.2-5 cm long, usually pilose, occasionally puberulent, or rarely glabrous.
Seeds dark brown, smooth and dull, except with a few small glossy depressions, quadrangular, ca. 2 mm long.
2n = 16, 32, 48