Contains 3 accepted taxa overall.
Characteristics
Classification
Citation
EUPLOCA Nuttall, Trans. Amer. Philos. Soc., ser. 2. 5: 189. 1836.
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TYPE: Euploca convolvulacea Nuttall 1836.
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Euploca fruticosa | KEY WEST HELIOTROPE | Native Rare-State | ||
| Euploca polyphylla | PINELAND HELIOTROPE | Native FAC (NWPL) FAC (DEP) | ||
| Euploca procumbens | FOURSPIKE HELIOTROPE | Not Native FACW (NWPL) FACW (DEP) |
Identification Key
1. Stems 5-15(30) cm long; inflorescence leafy, the bracts not markedly differentiated from other leaves, the flowers sometimes appearing solitary, internodes plainly visible
1. Stems 10-60 cm long; inflorescence bracteate, the bracts markedy smaller than cauline leaves
2
2. Plant canescent, the hairs dense, laxly-appressed, 0.4-1 mm long; leaf blades obovate to narrowly oblanceolate, often distincly petiolate; corolla 1.5-2 mm long
2. Plant strigose, the hairs sparse to moderate, stiffly appressed, 0.2-0.5; leaves linear-lanceolate to narrowly oblanceolate, mostly sessile to subsessile; corolla 4-6 mm long
3
3. Stems erect, often strict
3. Stems spreading-decumbent or prostrate (coastal strand, pine rocklands, Pinellas and Martin Cos. southward, and Polk Co.)
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| Hilgeria | Hilgeria Förther, Sendtnera 5: 132. 1998. | TYPE: Hilgeria hypogaea (Urban & Ekman) Förther 1998. (Heliotropium hypogaeum Urban & Ekman 1929.) | |
| Lithococca | Lithococca Small ex Rydberg, Fl. Plains N. Amer. 664. 1932. | TYPE: Lithococca tenella (Torrey) Small ex Rydberg (Heliotropium tenellum Torrey) | |
| Notonerium | Notonerium Bentham, in Bentham & Hooker f., Gen. Pl. 2: 698. 1876. | TYPE: Notonerium gossei Bentham | |
| Orthostachys | Orthostachys (R. Brown) Spach, Hist. Nat. Vég. 9: 32. 1840. | BASIONYM: Heliotropium Linnaeus, subg. Orthostachys R. Brown, Prodr. 493. 1810. | TYPE: Heliotropioum foliatum R. Brown 1810. Typified by I. M. Johnston, Contr. Gray Herb. 81: 46. 1928. |
| Pentacarya | Pentacarya de Candolle ex Meisner, Pl. Vasc. Gen. 1: 279; 2: 187. 1840. | TYPE: Pentacarya heliotropioides de Candolle ex Meisner, nom. illegit. (Lithospermum incanum G. Forster) | |
| Pioctonon | Pioctonon Rafinesque, Sylva Tellur. 88. 1838. | TYPE: Pioctonon antillanum Rafinesque, nom. illegit. (Heliotropium fruticosum Linnaeus) Lectotypified by I. M. Johnston, Contr. Gray Herb. 81: 46. 1928. | |
| Preslaea | Preslaea Martius, Nov. Gen. Sp. Pl. 2: 75. 1827. | TYPE: Preslaea paradoxa Martius 1827. | |
| Sarcanthus | Sarcanthus Andersson, Kongl. Vetensk. Acad. Handl. 1853: 209. 1855, non Lindley 1824. | TYPE: Sarcanthus asperrimus Anderssons | |
| Schleidenia | Schleidenia Endlicher, Gen. Pl. 646. 1839. | TYPE: = Preslaea Martius 1827. |