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Heliotropium convolvulaceum var. californicum
MORNING-GLORY HELIOTROPE


Higher Taxonomy
Family: BoraginaceaeView DescriptionDichotomous Key
Common Name: BORAGE or WATERLEAF FAMILY
Habit: Annual to shrub or small tree, or non-green root parasite, often bristly or sharp-hairy. Stem: prostrate to erect. Leaf: basal and/or cauline, generally simple, generally alternate. Inflorescence: generally cymes, or panicle-, raceme-, head-, or spike-like, generally coiled in flower (often described as scorpioid), generally elongating in fruit, or flowers 1--2 per axil. Flower: bisexual, generally radial; sepals (4)5(10), fused at least at base, or free; corolla (4)5(10)-lobed, salverform, funnel-shaped, rotate, or bell-shaped, generally without scales at tube base, with 0 or 5 appendages at tube top, alternate stamens; stamens epipetalous; ovary generally superior, entire to 4-lobed, style 1(2), entire or 2-lobed or -branched. Fruit: valvate or circumscissile capsule or nutlets 1--4, free (fused), smooth to roughened, prickly or bristly or not.
Genera In Family: +- 120 genera, +- 2300 species: tropics, temperate, especially western North America, Mediterranean; some cultivated (Borago, Heliotropium, Echium, Myosotis, Nemophila, Phacelia, Symphytum, Wigandia). Toxicity: Many genera may be TOXIC from pyrrolizidine alkaloids or accumulated nitrates. Note: Recently treated to include Hydrophyllaceae, Lennoaceae. Wigandia urens added, as naturalized.
eFlora Treatment Author: Ronald B. Kelley, Robert Patterson, Richard R. Halse & Timothy C. Messick, family description, key to genera, treatment of genera by Ronald B. Kelley, except as noted
Scientific Editor: Ronald B. Kelley, Robert Patterson, Thomas J. Rosatti, Bruce G. Baldwin, David J. Keil.
Genus: HeliotropiumView DescriptionDichotomous Key


Common Name: HELIOTROPE
Habit: Annual, perennial herb [shrub], glabrous to bristly or strigose. Stem: prostrate to erect, branched. Leaf: generally cauline, petioled to sessile, generally entire. Inflorescence: flower 1 in axils or many in terminal coiled spike-like cymes. Flower: corolla rotate to bell-shaped, white to purple; stamens attached on upper tube, included, anthers +- sessile; style 0 or not lobed, stigma 1, linear to disk-like. Fruit: nutlets 2 or 4, erect, generally ovoid to spheric, smooth, roughened, or hairy, scar generally lateral.
Species In Genus: +- 250 species: temperate, tropics. Ornamental, cultivated for medicinal drugs. Etymology: (Greek: sun turning, from some species flowering at summer solstice)
eFlora Treatment Author: Ronald B. Kelley & Dieter H. Wilken
Unabridged Reference: Ewan 1942 Bull So Calif Acad Sci 41: 51--57
Heliotropium convolvulaceum (Nutt.) A. Gray var. californicum (Greene) I.M. Johnst.
NATIVE
Habit: Annual, taprooted. Stem: ascending to erect, 7--18 cm, canescent. Leaf: 1--4 cm, elliptic to ovate, generally petioled, acute, dense-strigose. Inflorescence: flowers 1 in axils. Flower: opening late afternoon, closing next morning, +- fragrant; calyx lobes lanceolate, long-tapered, dense-spreading-bristly; corolla 7--10 mm, 8--15+ mm diam, wide-bell-shaped to salverform, papery, white, tube long-exserted, constricted, throat swollen, green-yellow; anthers in throat. Fruit: nutlets 4, long-soft-hairy. Chromosomes: 2n=42.
Ecology: Sandy soils, dunes; Elevation: < 700 m. Bioregional Distribution: D; Distribution Outside California: western Arizona, northern Mexico. Flowering Time: Apr--Oct Note: Typical variety to Great Plains.
Synonyms: Heliotropium californicum Greene; Euploca convolvulacea subsp. californica (Greene) Abrams
Jepson eFlora Author: Ronald B. Kelley & Dieter H. Wilken
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Botanical illustration including Heliotropium convolvulaceum var. californicum

botanical illustration including Heliotropium convolvulaceum var. californicum

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Citation for this treatment: Ronald B. Kelley & Dieter H. Wilken 2012, Heliotropium convolvulaceum var. californicum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=59910, accessed on October 16, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on October 16, 2019.

Heliotropium convolvulaceum var. californicum
click for enlargement
© 2015 Keir Morse
Heliotropium convolvulaceum var. californicum
click for enlargement
© 2015 Keir Morse
Heliotropium convolvulaceum var. californicum
click for enlargement
© 2015 Keir Morse
Heliotropium convolvulaceum var. californicum
click for enlargement
© 2015 Keir Morse
Heliotropium convolvulaceum var. californicum
click for enlargement
© 2015 Keir Morse
Heliotropium convolvulaceum var. californicum
click for enlargement
© 2015 Keir Morse

More photos of Heliotropium convolvulaceum var. californicum in CalPhotos



Geographic subdivisions for Heliotropium convolvulaceum var. californicum:
D
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Data provided by the participants of the  Consortium of California Herbaria.
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All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.