Jepson eFlora: Taxon page
Vascular Plants of California
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Nemophila heterophylla

Higher Taxonomy
Family: HydrophyllaceaeView DescriptionDichotomous Key

Habit: Annual, perennial herb, generally hairy, generally taprooted. Stem: prostrate to erect. Leaf: simple to pinnately compound, basal or cauline, alternate or opposite; stipules 0. Inflorescence: cyme, generally raceme-like and coiled, or flowers 1. Flower: bisexual, generally radial; calyx lobes generally 5, generally fused at base, generally persistent, enlarging in fruit; corolla rotate to cylindric, generally deciduous, lobes generally 5, appendages in pairs on tube between filaments or 0; stamens generally 5, epipetalous, filament base sometimes appendaged, appendages scale-like; ovary generally superior, chambers 1 or 2, placentas 2, parietal, enlarged into chamber, sometimes meeting so ovary appears 2--5-chambered, style 1, style branches 2, stigmas generally head-like. Fruit: capsule, generally loculicidal; valves generally 2.
Genera In Family: 12 genera, 240--260 species: especially western US; some cultivated (Emmenanthe, Nemophila, Phacelia). Note: Included in Boraginaceae in TJM2 and some other treatments (Angiosperm Phylogeny Group IV 2016 Bot J Linn Soc 181:1--20) but treated as separate family (excluding Namaceae) by Boraginales Working Group (Luebert et al. 2016).
eFlora Treatment Author: Genevieve K. Walden, Robert W. Patterson & Richard R. Halse, except as specified
Scientific Editor: Bruce G. Baldwin
Nemophila heterophylla Fisch. & C.A. Mey.
Leaf: lower opposite, 1--4 cm, blade = petiole, oblong to ovate, lobes 5--7, deep, generally round, stalked, generally well separated, entire to 1--3-toothed; upper alternate, +- sessile, blade lanceolate to ovate, lobes 0 or 3--5, entire. Inflorescence: pedicels < 10 mm, < 60 mm in fruit. Flower: calyx lobes 2--4 mm, appendages < 1 mm in fruit; corolla 3--10 mm, 4--12 mm wide, bowl-shaped, white or +- blue, tube = filaments; anthers < 1 mm; style 2--4 mm. Seed: 2--5, yellow-brown, smooth or roughened. Chromosomes: n=9.
Ecology: Forest, chaparral, roadsides, slopes, streambanks, talus; Elevation: 30--1700 m. Bioregional Distribution: NW, CaR, SN, GV, CW; Distribution Outside California: Oregon. Flowering Time: Feb--Jun
Jepson eFlora Author: Robert W. Patterson & Richard R. Halse
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

Previous taxon: Nemophila breviflora
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Botanical illustration including Nemophila heterophylla

botanical illustration including Nemophila heterophylla

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Citation for this treatment: Robert W. Patterson & Richard R. Halse 2021, Nemophila heterophylla, in Jepson Flora Project (eds.) Jepson eFlora, Revision 9,, accessed on October 04, 2023.

Citation for the whole project: Jepson Flora Project (eds.) 2023, Jepson eFlora,, accessed on October 04, 2023.

Nemophila heterophylla
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© 2014 California Academy of Sciences
Nemophila heterophylla
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© 2011 Neal Kramer
Nemophila heterophylla
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© 2014 California Academy of Sciences
Nemophila heterophylla
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© 2005 George W. Hartwell
Nemophila heterophylla
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© 2004 George W. Hartwell
Nemophila heterophylla
click for enlargement
© 2014 California Academy of Sciences

More photos of Nemophila heterophylla in CalPhotos

Geographic subdivisions for Nemophila heterophylla:
1. You can change the display of the base map layer control box in the upper right-hand corner.
2. County and Jepson Region polygons can be turned off and on using the check boxes.
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.
View all CCH records
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.

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).