Contains 6 accepted taxa overall.
Characteristics
Classification
Citation
TRIDENS Roemer & Schultes, Syst. Veg. 2: 34, 599. 1817.
-
TYPE: Tridens quinquefidus (Pursh) Roemer & Schultes (Poa quinquefida Pursh)
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Tridens albescens | White Tridens | |||
| Tridens ambiguus | Pineland Triodia, Flatwoods Fluffgrass | |||
| Tridens carolinianus | Carolina Triodia, Carolina Fluffgrass | |||
| Tridens chapmanii | Chapman's Triodia | |||
| Tridens flavus | Redtop, Tall Redtop, Purpletop Tridens, Greasy Grass | |||
| Tridens strictus | Spike Triodia, Longspike Fluffgrass, Longspike Tridens |
Identification Key
1. Panicles 0.3-4 cm wide, the primary branches ascending to strict
2
1. Panicles 1-20 cm wide, the primary branches ascending, spreading, reflexed, or pendent
3
2. Plant with elongate rhizomes; spikelets 7-10 mm long, the glumes subequal to the lemmas; lemmas 4-5 mm long
2. Plant densely cespitose; spikelets 4-7 mm long, the glumes longer than and exceeding the lemmas; lemmas (2)3-3.5 mm long
3. Lower glume (1)1.5-2.5 mm long; lemma lateral veins rarely reaching the distal margin
3. Lower glume 2.5-4.5 mm long; lemma lateral veins sometimes excurrent as short points
4
4. Panicle 7-17(20) cm long; pedicels 0.1-0.9 mm long; lower glume 4-4.5 mm long
4. Panicle 15-40 cm long; pedicels 3-8 mm long; lower glume 2.5-3 mm long
5
5. Panicles nodding; pulvini inconspicuously or conspicuously hairy, the hairs confined to the upper side of the branches
5. Panicles erect throughout, the pulvini conspicuously hairy completely around the base of the branches
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| No synonyms found. | |||