Chamaecrista deeringiana
Bull. Torrey Bot. Club 44: 345. 1917.
Herbs, perennial, to 0.9 m; roots horizontal, rhizomelike. Stems erect, not or weakly branched. Leaves 3–8.5 cm; petiole 3–7 mm; extrafloral nectary 1, subsessile or shortly stipitate; leaflets 8–18(–20) pairs, blades lanceolate- or linear-oblong, 9–20 × 2–3.3 mm. Racemes 1–4-flowered, supra-axillary. Pedicels (6–)8–22(–26) mm; bracteoles distal to mid pedicel. Flowers: calyx greenish, sepal venation reticulate; corolla rich yellow, petals all or some reddish spotted at claw, to (6–)8–22(–26) mm; stamens 10; anthers all or some yellow, dull reddish, or both, to 8–10.5 mm; ovary often hairy, sometimes glabrous. Legumes straight or slightly curved, linear, 35–75(–85) × 4.5–6 mm. Seeds (2.8–)3.2–4.8 mm.
Phenology: Flowering spring–mid summer.
Habitat: Pine and pine-oak forests.
Elevation: 0–200 m.
Distribution
Ala., Fla., Ga., Miss.
Discussion
The horizontal root system of Chamaecrista deeringiana, the only feature distinguishing this species from sympatric specimens of C. fasciculata, is interpreted as an adaptation to its fire-prone habitat.
Chamaecrista deeringiana is locally abundant in central and southern peninsular Florida, and in western Florida northward into Baldwin County, Alabama; it has also been documented from Peach and Taylor counties, Georgia, and Harrison County, Mississippi.
Selected References
None.