Contains 4 accepted taxa overall.
Characteristics
Classification
Citation
HELIOTROPIUM Linnaeus, Sp. Pl. 130. 1753.
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TYPE: Heliotropium europaeum Linnaeus Lectotypified by Britton & A. Brown, Ill. Fl. N. U.S., ed. 2. 3: 73. 1913.
Species
| Scientific Name | Common Name | Herbarium Specimens | Status | Photos |
|---|---|---|---|---|
| Heliotropium amplexicaule | Clasping Heliotrope | |||
| Heliotropium curassavicum var. curassavicum | Seaside Heliotrope | |||
| Heliotropium europaeum | European Heliotrope | |||
| Heliotropium indicum | Turnsole |
Identification Key
1. Woody shrubs or vines; fruit a fleshy drupe or drupaceous and corky
2
1. Herbs to subshrubs; fruit of dry nutlets, not drupaceous
4
2. Plant glabrate
2. Plant pubescent
3
3. Plant grayish or silvery-canescent; leaves sessile, linear-spatulate; fruit corky, yellowish to brownish
3. Plant green and hirsute to hispidulous; leaves petiolate, the blade lanceolate to ovate; fruit fleshy, white
4. Leaves glabrous, succulent
4. Leaves variously hairy, chartaceous
5
5. Leaves sessile
5. Leaves petiolate or the blade with an attenuate or decurrent base
6
6. Leaf base rounded to acute or cuneate
6. Leaf base attenuate or decurrent, rarely cuneate
7
7. Stem glabrate to hispidulous, hairs <1 mm long; leaves ovate-lanceolate to lanceolate; corolla 2.5-3.5 mm long
7. Stem hispid, some hairs >1 mm long; leaves ovate to broadly ovate; corolla 3.5-5 mm long
Genus Synonyms
| Synonym | Full Citation | Basionym | Type |
|---|---|---|---|
| No synonyms found. | |||