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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
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Annual to shrub, or non-green root parasite, often bristly or sharp-hairy. Stem: prostrate to erect. Leaf: basal and/or cauline, simple or compound, 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, appendages 0 or 5 at top of tube, alternate stamens; stamens epipetalous; ovary 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.
± 120 genera, ± 2300 species: tropics, temperate, especially western North America, Mediterranean; some cultivated (Borago, Heliotropium, Echium, Myosotis, Nemophila, Phacelia, Symphytum). Many genera may be TOXIC from pyrrolizidine alkaloids or accumulated nitrates. [Olmstead et al. 2000 Molec Phylogen Evol 16:96–112] Recently treated to include Hydrophyllaceae, Lennoaceae. —Scientific Editors: Ronald B. Kelley, Robert Patterson, Thomas J. Rosatti, Bruce G. Baldwin, David J. Keil.
Key to Boraginaceae
Perennial herb (biennial); hairs appressed to spreading; caudex generally branched in age, often ± woody, taprooted. Stem: ascending or erect. Leaf: lowest petioles generally ± = blades, ± winged, others 0. Inflorescence: coiled cymes, generally > 3, generally terminal and axillary, ± bracted; pedicel in fruit elongated, recurved to reflexed. Flower: calyx deep-5-lobed; corolla rotate-salverform, generally white with yellow patch adaxially, lobes appendaged near base. Fruit: nutlets erect, > style, attachment scar lateral-medial, generally with barb-tipped prickles abaxially and on margin.Key to Hackelia
40 species: generally western North America, southeastern Asia. (J. Hackel, Czech botanist, 1783–1869) Values for corolla limb diam take into account shrinkage during flower period. Difficult, study needed, especially in northern California, southeastern Asia; sometimes merged with Lappula.
Unabridged references: [Gentry & Carr 1976 Mem New York Bot Gard 26:121–227]
Unabridged note: In North America filling old-world role of flat-flowered forget-me-nots, Myosotis, Lepechiniella, etc, for pollinators.
Stem: 4–7 dm; ± glabrous above, hairs generally sparse below, often ± spreading. Leaf: sparse-rough-hairy; basal 3–12 cm, 0.6–2.5 cm wide, ± oblong to oblanceolate; lower cauline generally smaller, generally sessile, ovate to lanceolate upward; uppermost ± clasping. Inflorescence: open, branches few–several; pedicel 6–12 mm in fruit. Flower: calyx 1.5–3.5+ mm; corolla tube > calyx, ± white, throat open, limb (8)10–18 mm diam, ± blue, appendages generally as long as wide, indented at tip; anthers visible at throat. Fruit: nutlets 4–6 mm, dull, roughened, abaxial prickles many, evenly distributed, ± = marginal.
Moist open slopes, openings in forest; 1800–2930 m. s High Cascade Range, n&c High Sierra Nevada; western Nevada. May–Aug [Online Interchange]
Unabridged note: Much larger corollas, nutlet differences relative to sympatric Hackelia micrantha.
Previous taxon: Hackelia mundula
Next taxon: Hackelia setosa
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Dec 4 2013
Citation for this treatment: [Author of taxon treatment] 2012. Hackelia nervosa, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=27537, accessed on Dec 4 2013
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© 1995 Gary A. Monroe
|Bioregions in which Hackelia nervosa occurs||Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.|
Chart based on elevation range in eFlora and elevations and coordinates of CCH records.
Data provided by the participants of the Consortium of California Herbaria.
Note: About half of the CCH records include both elevation and coordinates.
| Data provided by the participants of the Consortium of California Herbaria.
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