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) |
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. | |||