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Vascular Plants of California
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Mertensia longiflora
LONG BLUEBELLS


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: MertensiaView DescriptionDichotomous Key


Common Name: BLUEBELL
Habit: Perennial herb, generally from taprooted, branched caudex; glabrous to spreading-hairy. Stem: +- erect. Leaf: cauline and generally basal, alternate, generally petioled, upper generally sessile. Inflorescence: generally panicle- or raceme-like cymes; bracts 0. Flower: calyx generally deep-lobed; corolla often +- cylindric or bell-shaped, blue, generally pink in bud, tube generally well developed, exceeding calyx, abruptly expanded at throat, with or without ring of inner hairs, appendages present or not; filaments often +- flat, generally attached +- below appendages, anthers included. Fruit: nutlets generally wrinkled, attached near or below middle.
Species In Genus: +- 50 species: North America, temperate Eurasia. Etymology: (F.C. Mertens, German botanist, plant collector, 1764--1831) Note: Hybrids common; identification sometimes difficult, especially in MP.
eFlora Treatment Author: Ronald B. Kelley & Elaine Joyal
Unabridged Reference: Williams 1937 Ann Missouri Bot Gard 24: 17--159; Milek 1988 Ph.D. Dissertation Univ of Northern Colorado; Strachan 1988 Ph.D. Dissertation Univ of Montana
Mertensia longiflora Greene
NATIVE
Habit: Plant generally < 4 dm from tuber-like root, glabrous to +- strigose. Stem: generally 1--2, easily detached. Leaf: basal rare on flowering plants; cauline few, generally sessile, generally 1.5--4 × longer than wide, lateral veins obscure. Inflorescence: +- panicle-like, dense. Flower: calyx 3--6 mm; corolla 15--25 mm, limb 0.3--0.5(0.6) × tube, tube >> calyx, glabrous inside, appendaged; filaments wide, > anthers; style +- included.
Ecology: Open, generally spring-moist, drying places of plains, foothills, especially with sagebrush or sparse ponderosa-pine forest; Elevation: 1500--2200 m. Bioregional Distribution: MP; Distribution Outside California: to British Columbia, Montana. Flowering Time: Apr--Jun
Jepson eFlora Author: Ronald B. Kelley & Elaine Joyal
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
Listed on CNPS Rare Plant Inventory

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Botanical illustration including Mertensia longiflora

botanical illustration including Mertensia longiflora

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Citation for this treatment: Ronald B. Kelley & Elaine Joyal 2012, Mertensia longiflora, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=33331, accessed on June 28, 2022.

Citation for the whole project: Jepson Flora Project (eds.) 2022, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on June 28, 2022.

Mertensia longiflora
click for enlargement
© 2005 Christopher L. Christie
Mertensia longiflora
click for enlargement
© 2005 Christopher L. Christie
Mertensia longiflora
click for enlargement
© 2005 Christopher L. Christie
Mertensia longiflora
click for enlargement
© 2005 Christopher L. Christie
Mertensia longiflora
click for enlargement
© 2005 Christopher L. Christie
Mertensia longiflora
click for enlargement
© 2005 Christopher L. Christie

More photos of Mertensia longiflora in CalPhotos



Geographic subdivisions for Mertensia longiflora:
MP
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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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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.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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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).