Contains 7 accepted taxa overall.
Characteristics
Classification
Citation
SPHENOPHOLIS Lamson-Scribner, Rhodora 8: 142. 1906.
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TYPE: Sphenopholis obtusata (Michaux) Lamson-Scribner (Aira obtusata Michaux) Substitute name for Reboulea Kunth 1830, non Reboulia Raddi 1818.
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Sphenopholis ×pallens | ||||
| Sphenopholis filiformis | Longleaf Wedgescale | |||
| Sphenopholis intermedia | Slender Wedgegrass | |||
| Sphenopholis interrupta | Prairie False Oats | |||
| Sphenopholis nitida | Shiny Wedgescale | |||
| Sphenopholis obtusata | Prairie Wedgegrass | |||
| Sphenopholis pensylvanica | Swamp-oats |
Identification Key
1. Spikelets 4.5-9.5 mm long; distal lemma awns (2)3-7(9) mm long
1. Spikelets 2.1-5.2 mm long; distal lemma awns usually absent or sometimes 0.1-3 mm long
2
2. Leaf blades 0.3-1.5(2) mm wide, involute
2. Leaf blades (1)2-8 mm wide, flat to slightly involute
3
3. Lower glume 0.3-0.4 mm wide, 1/3 - 1/2 as wide as the upper glume; distal lemma margins scabrous
3. Lower glume 0.1-0.3 mm wide, <1/3 as wide as the upper glume; distal lemma margins mostly smooth and scabrous only at the tip
4
4. Panicles usually nodding, not spicate, the spikelets usually loosely arranged; upper glumes not subcucullate, 3-5 times as long as wide;
4. Panicles usually erect, often spicate, the spikelets usually densely arranged; upper glumes subcucullate, 2-3 times as long as wide;
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| No synonyms found. | |||