Contains 5 accepted taxa overall.
Characteristics
Classification
Citation
LACHNOCAULON Kunth, Enum. Pl. 3: 497. 1841.
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                    TYPE: Lachnocaulon michauxii Kunth, nom. illegit. (Eriocaulon anceps Walter; Lachnocaulon anceps (Walter) Morong)
                    Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos | 
|---|---|---|---|---|
| Lachnocaulon anceps | WHITEHEAD BOGBUTTON | Native FACW (NWPL) FACW (DEP) | ||
| Lachnocaulon beyrichianum | SOUTHERN BOGBUTTON | Native OBL (NWPL) FACW (DEP) | ||
| Lachnocaulon digynum | PINELAND BOGBUTTON; PANHANDLE BOGBUTTON | Native Threatened-State FACW (NWPL) OBL (DEP) | ||
| Lachnocaulon engleri | ENGLER'S BOGBUTTON | Native FACW (NWPL) OBL (DEP) | ||
| Lachnocaulon minus | SMALL'S BOGBUTTON | Native OBL (NWPL) OBL (DEP) | 
[Family identification key]
                            
                                1.  Heads pale gray to white; apical hairs of receptacular bracts and perianth white, mealy, opaque; scapes hairy, infrequently glabrous 
                            
                        
                        
                        
                                2
                        
                    
                            
                                1.  Heads brown or gray-brown; apical hairs of bracts and perianth translucent, not white, the brown color of bract and perianth showing through; scapes glabrous or with ascending hairs 
                            
                        
                        
                        
                                3
                        
                    
                            
                                2.  Leaves linear, gradually attentuate; scapes usually pilose throughout, infrequently glabrous; mature heads 4-7(9) mm wide, whitish to pale gray; seeds pale to dark brown, not lustrous, longitudinal ribs conspicuous, transverse ribs less conspicuous than longitudinal ribs 
                            
                        
                        
                        
                    
                            
                                2.  Leaves narrowly linear, abruptly attenuate; scapes glabrate within 1 cm below heads; mature heads 3.5-4(5) mm wide, dull gray-brown or pale gray; seeds dark red-brown, very lustrous, longitudinal ribs faint, transverse ribs forming finely cross-striolate pattern 
                            
                        
                        
                        
                    
                            
                                3.  Scapes with ascending hairs; heads dull gray-brown; hairs of receptacle copious, partly obscuring flowers (old heads may lose some hairs); gynoecium 3-carpellate 
                            
                        
                        
                        
                    
                            
                                3.  Scapes glabrous; heads gray to brown or reddish brown; gynoecium 2-3-carpellate 
                            
                        
                        
                        
                                4
                        
                    
                            
                                4.  Leaves 0.5-1(2) cm long; scape sheaths longer than above leaves; heads gray or gray-brown, usually globose by seeding time; gynoecium 2-carpellate 
                            
                        
                        
                        
                    
                            
                                4.  Leaves 2-3(4) cm long; scape sheaths shorter than or subequal to leaves; heads dark brown to reddish brown, usually short cylindric by seeding time; gynoecium 3-carpellate 
                            
                        
                        
                        
                    Genus Synonyms
| Synonym | Full Citation | Basionym | Type | 
|---|---|---|---|
| No synonyms found. | |||