Contains 6 accepted taxa overall.
Characteristics
Classification
Citation
SCHOENOPLECTUS (Reichenbach) Palla, Verh. K.K. Zool.-Bot. Ges. Wien 38(Sitzungsber.): 49. 1888 , nom. cons. vs. Heleophylax Lestiboudois f. 1819, et vs. Hymenochaeta Lestiboudois f. 1819, et vs. Elytrospermum C. A. Meyer 1831.
BASIONYM: Scirpus Linnaeus, subg. Schoenoplectus Reichenbach, Icon. Fl. Germ. 8: 40. 1846.
TYPE: Schoenoplectrus lacustris (Linnaeus) Palla (Scirpus lacustris Linnaeus)
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Schoenoplectus americanus | Olney Threesquare | |||
| Schoenoplectus californicus | Giant Bulrush, Southern Bulrush, Tule | |||
| Schoenoplectus etuberculatus | Swamp Bulrush, Canby's Bulrush | |||
| Schoenoplectus pungens var. pungens | Common Threesquare, Chairmaker's Rush, Swordgrass | |||
| Schoenoplectus subterminalis | Swaying Rush, Water Bulrush | |||
| Schoenoplectus tabernaemontani | Softstem Bulrush, Great Bulrush |
Identification Key
1. Inflorescence pedunculate (at least partly so)
2
1. Inflorescence sessile or subsessile
3
2. Culms sharply trigonous; leaves 5-25, 2-6+ having blades; spikelets 10-25 mm long, 5-7 mm wide; anthers 3-3.5 mm long; achenes 3-4.5 mm long
2. Culms terete to obscurely or bluntly trigonous; leaves 3-4, 0-2 having blades; spikelets 5-11(17) mm long, 2.5-4 mm wide; anthers 1.5-2 mm long; achenes 1.5-2.8 mm long
3
3. Perianth with 2-4 straplike bristles, these lacerate to fimbriate, reddish
3. Perianth with 6 bristles, these retrorsely barbed, brownish
4. Culms 0.5-1 mm wide; leaf blades 0.2-1 mm wide; spikelets 1
4. Culms 5-20 mm wide; leaf blades 2-9 mm wide; spikelets 1-35
5
5. Distal leaf blade 0.5-0.9(1.5) times as long as sheath; inflorescence bract 1-6 cm long; spikelet scale notch 0.1-0.4 mm deep, the awn 0.2-0.6 mm long
5. Distal leaf blade (0.9)1.2-3 times longer than the sheath; inflorescence bract (1)3-20 cm long; spikelet scale notch (0.3)0.5-1 mm deep, the awn 0.5-1.5(2.5) mm long
6
6. Spikelets 3-35; distal leaf blade 0.9-1.5 times longer than the sheath; achenes 1.9-2.6 mm long; styles 2-fid
6. Spikelets 1-5(10); distal leaf blade (1)1.5-3 times longer than the sheath; achenes (2)2.5-3.5 mm long; styles 2- or 3-fid
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| No synonyms found. | |||