Contains 5 accepted taxa overall.
Characteristics
Classification
Citation
INDIGOFERA Linnaeus, Sp. Pl. 751. 1753.
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TYPE: Indigofera tinctoria Linnaeus Lectotypified by Britton & A. Brown, Ill. Fl. N. U.S., ed. 2. 2: 371. 1913.
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Indigofera caroliniana | Wild Indigo, Carolina Indigo | |||
| Indigofera hirsuta | Hairy Indigo | |||
| Indigofera spicata | Trailing Indigo | |||
| Indigofera suffruticosa | West Indian Indigo | |||
| Indigofera tinctoria | African Indigo |
Identification Key
1. Leaves 3-foliolate
1. Leaves mostly 5- or more foliolate
2
2. Leaflets mostly alternate on the rachis
3
2. Leaflets mostly opposite on the rachis
4
3. Stipules subulate; leaflets mostly <4 mm wide; inflorescence of 3-10 flowers, at least the lower internodes easily visible
3. Stipules deltoid to lanceolate; larger leaflets >4 mm wide; inflorescence of 5-40 flowers, the internodes nearly concealed
4. Plant with glandular trichomes; leaflets <4 mm wide, <7 mm long
4. Plant lacking glandular trichomes; larger leaflets >5 mm wide or >8 mm long
5
5. Plant hirsute to pilose
5. Plant mostly strigose to glabrate
6
6. Stems decumbent to prostrate; leaves mostly 5-foliolate
6. Stems erect to spreading; at least some leaves more than 5-foliolate
7
7. Inflorescence pedunculate, the peduncle (distance to first flower) 2.5-15 cm long; fruit indehiscent, <12 mm long, seeds 1-3
7. Inflorescence subsessile or with a peduncle to 1 cm long; fruit dehiscent, >13 mm long, seeds >3
8
8. Shrubs 1-2.5 m tall, with ascending to erect stems; leaflets elliptic, broadly elliptic, to broadly obovate along fertile portions of the stem; upper petal rounded-mucronate at the tip; fruit <1.8 cm long, strongly curved
8. Shrubs to 1 m tall, with spreading to ascending stems; leaflets narrowly elliptic along fertile portions of the stem; upper petal acute at the tip; fruit >2 cm long, straight to curved
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| No synonyms found. | |||