Nemacladus sigmoideus

Plant: Annual; roots fibrous; stems widely spreading, 4-12 cm; base purplish brown Leaves: basal; 1.5-10 mm, ovate to elliptic, sessile, entire or irregularly dentate, short-hairy INFLORESCENCE: ± raceme-like; axis strongly zigzag; bracts 0.8-1.5 mm, ovate 1 per flower; pedicels 10-18 mm, < 0.1 mm diam, spreading, S-curved, thread-like, tip erect Flowers: bisexual, inverted; hypanthium 0.5 mm; sepals ± 1.5 mm, lanceolate-deltate, erect, spreading in fruit; corolla 2.5-3.5 mm, deeply divided, white, yellow at tips, hairy, upper lobes erect, lower lobes spreading; filament tube 1.5 mm, tip curved, fine-hairy, anthers ± 0.3 mm; ovary nearly superior Fruit: capsule, ± 2 mm, widely fusiform (base and tip acute); dehiscing at tip by 2 valves; chambers 2; seed ± 0.5 mm, widely elliptic; surface with zigzag ridges alternating with clearly pitted rows Misc: Sandy or gravelly soils, Joshua-tree woodland; 50-2300 m.; Apr-Jun