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Vascular Plants of California
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Hackelia nervosa
SIERRAN STICKSEED


Higher Taxonomy
Family: BoraginaceaeView DescriptionDichotomous Key
Common Name: BORAGE FAMILY
Habit: Annual, perennial herb, or shrub, often bristly or sharp-hairy. Stem: prostrate-decumbent to erect. Leaf: basal and/or cauline, simple, generally alternate, sometimes opposite, especially at base. Inflorescence: cymes, arranged singly or in groups of 2--5, generally coiled in flower, generally elongating in fruit. Flower: bisexual, generally radial; sepals 5, free or fused at least at base; corolla 5-lobed, salverform, funnel-shaped, rotate, or bell-shaped, appendages (often called "fornices") 0 or 5 at top of tube, when present often differentially pigmented, alternate stamens; stamens epipetalous; ovary superior, 4-lobed, style 1, entire or minutely 2-lobed (2-branched). Fruit: nutlets 1--4, when > 1, all similar (often called "homomorphic") or 1 or 2 dissimilar in size and/or shape from the others (often called "heteromorphic"), free (fused), smooth to roughened, prickly or bristly or not.
Genera In Family: +- 90 genera, +- 1600--1700 species: mostly temperate, especially western North America, Mediterranean; some cultivated (Borago, Echium, Myosotis, Symphytum). Toxicity: Many genera may be TOXIC from pyrrolizidine alkaloids or accumulated nitrates. Note: Sometimes still treated in broader sense of TJM2 (e.g., APG IV 2016 Bot J Linn Soc 181:1--20), but recent evidence (Luebert et al. 2016) supports segregation, for our flora, of the families Ehretiaceae, Heliotropiaceae, Hydrophyllaceae, Lennoaceae, and Namaceae.
eFlora Treatment Author: Michael G. Simpson, C. Matt Guilliams, Kristen Hasenstab-Lehman & Ronald B. Kelley
Scientific Editor: Bruce G. Baldwin, C. Matt Guilliams, Kristen Hasenstab-Lehman, David J. Keil, Ronald B. Kelley, Robert W. Patterson, Thomas J. Rosatti & Michael G. Simpson
Genus: HackeliaView DescriptionDichotomous Key


Common Name: STICKSEED
Habit: 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.
Etymology: (J. Hackel, Czech botanist, 1783--1869) Note: 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 Note: In North America filling old-world role of flat-flowered forget-me-nots, Myosotis, Lepechiniella, etc, for pollinators.
eFlora Treatment Author: Ronald B. Kelley & Robert L. Carr
Unabridged Reference: Gentry & Carr 1976 Mem New York Bot Gard 26:121--227
Hackelia nervosa (Kellogg) I.M. Johnst.
NATIVE
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.
Ecology: Moist open slopes, openings in forest; Elevation: 1800--2930 m. Bioregional Distribution: s CaRH, n&c SNH; Distribution Outside California: western Nevada. Flowering Time: May--Aug
Unabridged Note: Much larger corollas, nutlet differences relative to sympatric Hackelia micrantha.
Jepson eFlora Author: Ronald B. Kelley & Robert L. Carr
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

Previous taxon: Hackelia mundula
Next taxon: Hackelia setosa

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Botanical illustration including Hackelia nervosa

botanical illustration including Hackelia nervosa

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Citation for this treatment: Ronald B. Kelley & Robert L. Carr 2012, Hackelia nervosa, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=27537, accessed on April 19, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 19, 2024.

Hackelia nervosa
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©2010 Barry Breckling
Hackelia nervosa
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©1995 Gary A. Monroe
Hackelia nervosa
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©2009 Barry Breckling
Hackelia nervosa
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©2009 Barry Breckling
Hackelia nervosa
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©2015 Barry Rice

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Geographic subdivisions for Hackelia nervosa:
s CaRH, n&c SNH
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).





 

Data provided by the participants of the  Consortium of California Herbaria.
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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 (fruiting time in some monocot genera).