Contains 8 accepted taxa overall.
Characteristics
Classification
Citation
PANICUM Linnaeus, Sp. Pl. 55. 1753.
-
TYPE Panicum miliaceum Linnaeus Lectotypified by Hitchcock & Chase, Contr. U.S. Natl. Herb. 15: 14. 1910.
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Panicum amarum | BITTER PANICGRASS | Native FAC (NWPL) | ||
| Panicum capillare | WITCHGRASS | Native FAC (NWPL) | ||
| Panicum dichotomiflorum var. bartowense | FALL PANICGRASS | Native FACW (NWPL) | ||
| Panicum dichotomiflorum var. dichotomiflorum | FALL PANICGRASS | Native FACW (NWPL) FACW (DEP) | ||
| Panicum flexile | WIRY PANICGRASS | Native FAC (NWPL) | ||
| Panicum miliaceum | BROOMCORN MILLET | Not Native | ||
| Panicum repens | TORPEDOGRASS | Not Native FACW (NWPL) Y FACW (DEP) | ||
| Panicum virgatum | SWITCHGRASS | Native FAC (NWPL) FACW (DEP) |
Identification Key
1. Spikelet 2.5-7.5 mm long; lower glume 1.8-4 mm long
2
1. Spikelet 1.8-4.1 mm long; lower glume 0.4-1.8 mm long
4
2. Annual; nodes puberulent; leaf sheath pilose with some papillose-based hairs; leaf blade upper surface pubescent
2. Rhizomatous perennial; nodes glabrous; leaf sheath glabrous to pilose; leaf blade upper surface glabrous or with few trichomes at the base
3
3. Plant glabrous throughout; panicle narrow and compact, the branches ascending to appressed; coastal, saline-influenced sites
3. Plant usually at least pilose basally on upper surface of leaf blades; panicle open and diffuse, the branches ascending to spreading; habitats various
4. Rhizomatous perennial; lower floret staminate
4. Annual or perennial without rhizomes, sometimes rooting at basal nodes; lower floret sterile
5
5. Nodes glabrous; lower glume 0.4-0.8 mm long; ligule of dense bristile to 2 mm long
6
5. Nodes pilose; lower glume 0.8-2 mm long
7
6. Leaf sheath and upper blade surface pilose with papillose-based hairs
6. Leaf sheath and upper blade surface glabrous to pilose, not papillose-based
7. Panicle 3.8-31 cm wide, <2 times longer than wide
7. Panicle 1.4-5.1 cm wide, 2-3 times longer than wide
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| Eatonia | Eatonia Rafinesque, J. Phys. Chim. Hist. Nat. Arts 89: 104. 1819. | TYPE: Eatonia purpurascens Rafinesque | |
| Monachne | Monachne Palisot de Beauvois, Ess. Agrostogr. 49, 168. 1812, pl. 10(9-10). | TYPE: Monachne racemosa Palisot de Beauvois Lectotypified by Hitchcock & Chase, Contr. U.S. Natl. Herb. 24: 170. 1925. | |
| Otachyrium | Otachyrium C. Nees von Esenbeck, in Martius, Fl. Bras. Enum. Pl. 2(1): 271 ("273"). 1829. | TYPE: Otachyrium junceum C. Nees von Esenbeck, nom. illegit. (Panicum pterigodium Trinius; Otachyrium pterigodium (Trinius) Pilger) | |
| Paractaenum | Paractaenum Palisot de Beauvois, Ess. Agrostogr. 47, pl. 10(6). 1812. | TYPE: Paractaenunm novae-hollandiae Palisot de Beauvois | |
| Sorengia | Sorengia Zuloaga & Morrone, in Zuloaga et al., Taxon 59: 1541, f. 3. 2010. | TYPE: Panicum agrostoides Hitchcock & Chase 1910, non Sprengel 1814, nec Muhlenberg 1817. | |
| Stephostachys | Stephostachys Zuloaga & Morrone, in Zuloaga et al., Taxon 59: 1539, f. 2. 2010. | TYPE: Stephostachys mertensii (Roth) Zuloaga & Morrone 2010. (Panicum mertensii Roth 1817.) | |
| Streptostachis | Streptostachis Desvaux, Nouv. Bull. Sci. Soc. Philom. Paris 2: 190. 1810. | TYPE: Streptostachis asperifolia Desvaux | |
| Talasium | Talasium Sprengel, Syst. Veg. 4(2): 22, 30 ("Thalasium"). 1827. | TYPE: Talasium montevidense Sprengel |