Contains 7 accepted taxa overall.
Characteristics
Classification
Citation
HELENIUM Linnaeus, Sp. Pl. 886. 1753.
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TYPE: Helenium autumnale Linnaeus
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Helenium amarum | SPANISH DAISY; BITTERWEED | Native FACU (NWPL) FAC (DEP) | ||
| Helenium autumnale | COMMON SNEEZEWEED | Native FACW (NWPL) FACW (DEP) | ||
| Helenium brevifolium | SHORTLEAF SNEEZEWEED | Native OBL (NWPL) FACW (DEP) | ||
| Helenium drummondii | FRINGED SNEEZEWEED | Native OBL (NWPL) | ||
| Helenium flexuosum | PURPLEHEAD SNEEZEWEED | Native FACW (NWPL) FACW (DEP) | ||
| Helenium pinnatifidum | SOUTHEASTERN SNEEZEWEED | Native OBL (NWPL) FACW (DEP) | ||
| Helenium vernale | SAVANNAH SNEEZEWEED | Native FACW (NWPL) FACW (DEP) |
Identification Key
1. Leaves filiform to linear, 1-4 mm wide, 15-150 times longer than wide, the bases not decurrent along the stem
1. Leaves lanceolate, (2)5-40 mm wide, 2-20 times longer than wide, the base decurrent along the stem
2
2. Heads 5-100 per stem, the arrays with numerous branches
3
2. Heads 1-5(10) per stem, branches none to few
4
3. Cauline leaves usually dentate, 0.8-3 cm wide; ray flower pistillate, fertile; disc corollas yellow to yellow-brown
3. Cauline leaves entire to subtly toothed, 0.2-1.4 cm wide; ray flower neuter; disc corollas reddish or purplish
4. Disc corolla lobes reddish, purplish, to yellow-brown
4. Disc corolla lobes mostly yellow
5
5. Pappus scales fimbriate-fringed or deeply lacerate 1/2 or more of their length; leaves of basal rosettes entire, undulate, to subtly toothed; peduncles glabrate to sparsely hairy; cypselae hairy
5. Pappus scales entire to slighly lacerate; leaves of basal rosettes entire, undulate, subtly to coarsely toothed, or pinnatifid; peduncles glabrate to densely hairy; cypselae glabrous or hairy
6
6. Leaves of basal rosettes undulate, subtly to coarsely toothed, or pinnatifid; peduncles moderately to densely hairy; cypselae hairy
6. Leaves of basal rosettes entire, undulate, to subtly toothed; peduncles glabrous to sparsely hairy; cypselae glabrous
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| Amblyolepis | Amblyolepis de Candolle, Prodr. 5: 667. 1836. | TYPE: Amblyolepis setigera de Candolle | |
| Brassavola | Brassavola Adanson, Fam. Pl. 2: 127, 527. 1763, nom. rej. vs. Brassavola R. Brown 1813. | TYPE: = Helenium Linnaeus 1753. | |
| Dugaldia | Dugaldia Cassini, in Cuvier, Dict. Sci. Nat. 55: 270. 1828. | TYPE: Dugaldia integrifolia (Kunth) Cassini (Actinea integrifolia Kunth) Lectotypified by Rydberg, in Britton, N. Amer. Fl. 34: 119. 1915. | |
| Hecubaea | Hecubaea de Candolle, Prodr. 5: 665. 1836. | TYPE: Hecubaea scorzoneraefolia de Candolle | |
| Helenia | Helenia Miller, Gard. Dict. Abr., ed. 4. 1754. | TYPE: = Helenium Linnaeus 1753. | |
| Heleniastrum | Heleniastrum Fabricius, Enum., ed. 2. 143. 1763. | TYPE: = Helenium Linnaeus 1753. | |
| Leptophora | Leptophora Rafinesque, Amer. Monthly Mag. & Crit. Rev. 4: 195. 1819. | TYPE: = Leptopoda Nuttall 1818. | |
| Leptopoda | Leptopoda Nuttall, Gen. N. Amer. Pl. 2: 174. 1818. | TYPE: Leptopoda helenium Nuttall | |
| Mesodetra | Mesodetra Rafinesque, Fl. Ludov. 141. 1817. | TYPE: Mesodetra alata Rafinesque, nom. illegit. (Helenium quadridentatum Labillardiere) | |
| Oxylepis | Oxylepis Bentham, Pl. Hartw. 87. 1841. | TYPE: Oxylepis lanata Bentham | |
| Tetrodus | Tetrodus Cassini, in Cuvier, Dict. Sci. Nat. 55: 272. 1828. | TYPE: Tetrodus quadridentatus (Labillardiere) Cassini (Helenium quadridentatum Labillardiere) = Mesodetra Rafinesque 1817. |