Contains 9 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 deeringiana | Native | |||
| Chamaecrista fasciculata | PARTRIDGE PEA | Native FACU (NWPL) | ||
| Chamaecrista horizontalis | Native | |||
| Chamaecrista lineata var. keyensis | NARROWPOD SENSITIVE PEA; KEY CASSIA | Native Rare-State | ||
| Chamaecrista nictitans var. aspera | SENSITIVE PEA | Native FACU (NWPL) | ||
| Chamaecrista nictitans var. nictitans | SENSITIVE PEA | Native FACU (NWPL) | ||
| Chamaecrista pilosa | HAIRY SENSITIVE PEA | Not Native | ||
| Chamaecrista rotundifolia | ROUNDLEAF SENSITIVE PEA | Not Native | ||
| Chamaecrista serpens | SLENDER SENSITIVE PEA | Not Native |
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 |
|---|---|---|---|
| Dialanthera | Dialanthera Rafinesque, Sylva Tellur. 127. 1838. | TYPE: Dialanthera glandulosa (Linnaeus) Rafinesque (Cassia glandulosa Linnaeus) | |
| Disterepta | Disterepta Rafinesque, Sylva Tellur. 126. 1838. | TYPE: Disterepta pilosa (Linnaeus) Rafinesque (Cassia pilosa Linnaeus) | |
| Grimaldia | Grimaldia Schrank, Bot. Zeitung (Regensburg) 4: 184. 1805. | TYPE: Grimaldia apifera Schrank | |
| Hepteireca | Hepteireca Rafinesque, Sylva Tellur. 126. 1838. | TYPE: Hepteireca glandulosa Rafinesque (Cassia glandulosa Hooker 1835, non Linnaeus 1759) | |
| Nictitella | Nictitella Rafinesque, Sylva Tellur. 128. 1838. | TYPE: = Chamaecrista Moench 1794, by lectotypification. | |
| Ophiocaulon | Ophiocaulon Rafinesque, Sylva Tellur. 129. 1838. | TYPE: Ophiocaulon serpens (Linnaeus) Rafinesque (Cassia serpens Linnaeus) | |
| Xamacrista | Xamacrista Rafinesque, Sylva Tellur. 127. 1838. | TYPE: Xamacrista triflora Rafinesque, nom. illegit. (Cassia chamaecrista Linnaeus) |