Contains 6 accepted taxa overall.
Characteristics
Classification
Citation
ERIOCAULON Linnaeus, Sp. Pl. 87. 1753.
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TYPE: Eriocaulon decangulare Linnaeus Lectotypified by Britton & A. Brown, Ill. Fl. N. U.S., ed. 2. 1: 454. 1913.
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Eriocaulon compressum | FLATTENED PIPEWORT | Native OBL (NWPL) OBL (DEP) | ||
| Eriocaulon decangulare | TENANGLE PIPEWORT | Native OBL (NWPL) OBL (DEP) | ||
| Eriocaulon lineare | NARROW PIPEWORT | Native OBL (NWPL) OBL (DEP) | ||
| Eriocaulon nigrobracteatum | BLACK-BRACTED PIPEWORT | Native Rare-State OBL (DEP) | ||
| Eriocaulon ravenelii | RAVENEL'S PIPEWORT | Native OBL (NWPL) OBL (DEP) | ||
| Eriocaulon texense | TEXAS PIPEWORT | Native OBL (NWPL) OBL (DEP) |
Identification Key
1. Leaves to 40 cm long; fertile scape to 1 m long; heads (8)10-20 mm wide
2
1. Leaves to 15 cm long; fertile scape to 0.4 m long; heads 3-8(10) mm wide
3
2. Heads soft, easily flattened when pressed; sheath of scape usually longer than the longest leaves; involucral bracts gray, apex rounded or obtuse; receptacular bracteoles gray, apex acute; pistillate flower petals adaxially villous; club-shaped hairs of perianth with all cells mealy white
2. Heads hard, not flattening when pressed; sheath of scape usually shorter than the longest leaves; involucral bracts straw-colored, apex acute; receptacular bracteoles pale, apex narrowly acuminate; pistillate flower petals adaxially glabrescent; club-shaped hairs of perianth with terminal cells whitened and the basal cells transparent
3. Receptacle copiously pilose; some or most receptacular bracteoles and perianth parts with chalk white hairs
3. Receptacle glabrous or sparsely hairy; receptacular bracteoles and perianth glabrous or hairy, hairs club-shaped, clear or white
4
4. Perianth parts and receptacular bracteoles with glabrous or with few white hairs, the upper part of the head appearing gray; seeds conspicuously irregularly pale-reticulate, alveolae mainly rectangular
4. Perianth parts and receptacular bracteoles with copious white hairs, the upper part of the head appearing white; seeds obscurely or faintly reticulate
5
5. Involucral and receptacular bracts mostly white to stramineous, the lower part of the head appearing pale; seeds dark red-brown, ovoid or ellipsoid, 0.5–0.75 mm, faintly rectangular-reticulate, often papillate in lines
5. Involucral and receptacular bracts dark gray or blackish, the lower part of the head appearing dark; seeds brown, nearly round, 0.3 mm, obscurely reticulate, alveolae irregularly and horizontally rectangular
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| Cespa | Cespa Hill, Herb. Brit. 1: 96. 1769. | TYPE: Cespa aquatica Hill | |
| Chaetodiscus | Chaetodiscus Steudel, Syn. Pl. Glumac. 2: 261. 1855. | TYPE: Chaetodiscus gilbertii Steudel | |
| Electrosperma | Electrosperma F. Mueller, Trans. Philos. Soc. Victoria 1: 23. 1855. | TYPE: Electrosperma australasicum F. Mueller | |
| Lasiolepis | Lasiolepis Boeckeler, Flora 56: 90. 1873, non J. Bennett ex R. Brown 1844. | TYPE: Non designatus. | |
| Leucocephala | Leucocephala Roxburgh, Fl. Ind., ed. 1832. 3: 612. 1832. | TYPE: Non designatus. | |
| Nasmythia | Nasmythia Hudson, Fl. Angl., ed. 2. 2: 414. 1778. | TYPE: Nasmythia articulata Hudson | |
| Randalia | Randalia Palisot de Beauvois ex Desvaux, Ann. Sci. Nat. (Paris) 13: 47. 1828. | TYPE: Randalia decangulare (Linnaeus) Palisot de Beauvois (Eriocaulon decangulare Linnaeus) = Eriocaulon Linnaeus 1753. | |
| Sphaerochloa | Sphaerochloa Palisot de Beauvois ex Desvaux, Ann. Sci. Nat. (Paris) 13: 47, pl. 5(1). 1828. | TYPE: Non designatus. | |
| Symphachne | Symphachne Palisot de Beauvois ex Desvaux, Ann. Sci. Nat. (Paris) 13: 47. 1828. | TYPE: Symphachne xyroides Palisot de Beauvois ex Desvaux |