Contains 3 accepted taxa overall.
Characteristics
Classification
Citation
CHAMAECRISTA Moench, Methodus 272. 1794.
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TYPE: Chamaecrista nictitans (Linnaeus) Moench (Cassia nictitans Linnaeus)
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Chamaecrista fasciculata var. fasciculata | Common Partridge-pea | |||
| Chamaecrista nictitans var. aspera | Southern Sensitive-plant | |||
| Chamaecrista nictitans var. nictitans | Common Sensitive-plant |
Identification Key
1. 2 leaflets per leaf
1. 4-50 leaflets per leaf
2
2. Plants often <30 cm tall, sometimes to 1 m tall; stems prostrate, decumbent, spreading, or sometimes ascending to erect; 2-6(7) pairs of leaflets per leaf
3
2. Plant 20-150 cm tall; stems mostly erect to erect-ascending; mostly 7-25 pairs of leaflets per leaf
5
3. Leaflets 3-8 mm long, 2-4 mm wide; fruits 1.5-3 cm long
3. Leaflets (5-)8-25 mm long, 3-10(-20) mm wide; fruits 2.5-4 cm long
4
4. Root tuberous; stems pilosulous, the longest hairs <11 mm long; sepals 8-10 mm long; petals 12-15 mm long
4. Root a slender taproot; stems pilose, the longest hairs >11 mm long; sepals 3-5 mm long; petals 4-6 mm long
5. Sepals 4-6 mm long; corolla 0.8-1 cm wide, the larger petals 4-8 mm long
6
5. Sepals 9-12 mm long; corolla 2.5-3.5 cm wide, the larger petals 13-20 mm long
7
6. Plant pilose
6. Plant glabrate to incurved-puberulent
7. Plant usually monocarpic, 20–140(–240) cm tall, with a branched vertical taproot gradually reduced to finer roots, the taproot grading into the main stem; main stem usually solitary (rarely multiple) from the base of the plant, glabrous, sparsely to densely puberulent, pubescent, pilose, to hirsute, 2–13 mm wide at the base
7. Plant perennial, 30–60 cm tall, the main root horizontal and generally perpendicular to the main stems; main stems usually several (rarely solitary) from the base of the plant, glabrous to sparsely puberulent, 1–7 mm wide at the base
8
8. Horizontal root to ca. 20+ cm long; anthers dark red to purple-red, sometimes yellow towards the base; flowering year-round, but especially Mar-Aug; pine rocklands of southern Florida
8. Horizontal root to ca. 46+ cm long; anthers yellow to yellow-brown; flowering late May-early Aug; sandy and clayey pine and oak woodlands of the western Florida panhandle
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| No synonyms found. | |||