Contains 5 accepted taxa overall.
Characteristics
Classification
Citation
COLEATAENIA Grisebach, Abh. Königl. Ges. Wiss. Göttingen 24: 308. 1879.
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TYPE: Coleataenia gynerioides Grisebach 1879 (=Coleataenia prionitis (Nees) Soreng)
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Coleataenia abscissa | CUTTHROATGRASS | Native Rare-State FACW (NWPL) FACW (DEP) | ||
| Coleataenia anceps | BEAKED PANICUM | Native FAC (NWPL) AD (WAP) FAC (DEP) | ||
| Coleataenia longifolia | CILIATE REDTOP PANICUM | Native OBL (NWPL) OBL (DEP) | ||
| Coleataenia rigidula | REDTOP PANICUM | Native FACW (NWPL) OD (WAP) FACW (DEP) | ||
| Coleataenia tenera | BLUEJOINT PANICUM | Native FACW (NWPL) OBL (DEP) |
Identification Key
1. Leaf sheath broad, relatively even width from base to apex, the apex truncate to auriculate and the sheath margin extended 1-3 mm in width from the blade, the sheath much wider than the blade, the blade 1.5-2.5 mm wide; with creeping rhizomes
1. Leaf sheath relatively narrow, tapered or not, the apex not auriculate, the sheath margin not extended or only slightly extended (<0.6 mm) from the blade, the sheath subequal to slightly wider than the blade, the blade 1.5-12 mm wide; cespitose or with creeping rhizomes
2
2. Leaf blades 1.5-4 mm wide, usually involute; glumes and lower lemmas without keeled midveins; upper florets with glabrous apices; panicles with appressed branches, relatively few spikelets; with short-creeping, knotty rhizomes, sometimes appearing nearly cespitose
2. Leaf baldes 2-12 mm wide, involute or not; glumes and lower lemmas with keeled midveins; upper florets with a tuft of small hairs at the apices; panicles appressed to spreading branches, with relatively many spikelets; cespitose or with scaly rhizomes
3
3. Plants with conspicuous, elongate, scaly rhizomes; ligule membranous with scabrous edge, cilia <0.1 mm long; spikelets 2.3-3.9 mm long, rarely lanceolate, often falcate
3. Plants cespitose, lacking conspicuous rhizomes; ligule membranous or ciliate; spikelets usually 1.6-3.8 mm long, lanceolate, not falcate
4
4. Blades usually 2-7 mm wide; ligule ciliate, the cilia 0.5-3 mm long
5
4. Blades usually 5-12 mm wide; ligule membranous with scabrous edge, cilia <0.1 mm long
6
5. Spikelets 2-2.7 mm long, green or purplish-stained, often obliquely set on the pedicels
5. Spikelets 2.6-3.8 mm long, usually purple, slender, erect on the pedicels
6. Spikelets 2.4-3 mm long, usually <0.7 mm wide, fruit stipitate
6. Spikelets 1.6-2.5 mm long, usually >0.6 mm wide, fruit not or slightly stipitate
7
7. Lower inflorescence branches ascending to erect; spikelets 1.9-2.5 mm long
7. Lower inflrorescence branches ascending to spreading; spikelets 1.6-2.3 mm long
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| Sorengia | Sorengia Zuloaga & Morrone, Taxon 59: 1541. 2010, nom. illegit. | Panicum agrostoides Hitchc. & Chase |