Jepson eFlora: Taxon page
Vascular Plants of California
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Eriodictyon lobbii

Higher Taxonomy
Family: NamaceaeView DescriptionDichotomous Key
Common Name: NAMA FAMILY
Habit: Annual to tree, taprooted or roots adventitious, sometimes rhizomed, generally hairy. Stem: prostrate to erect, branched. Leaf: deciduous or +- persistent, simple, generally cauline, alternate, or proximal opposite and distal alternate, venation pinnate; stipules 0. Inflorescence: cyme, raceme-like, panicle-like, head-like, terminal or axillary, or flowers 1 or paired in axils. Flower: bisexual, radial; calyx lobes 5, fused at base, +- equal, alike in shape, persistent, occasionally enlarged in fruit, sinus appendages 0; corolla deciduous, rotate, funnelform, urceolate, or urceolate-tubular, lobes 5; appendages on tube between filaments 0, appendages at tube top 0, nectary glands 0; stamens 5, epipetalous, included or +- exserted, equal or unequal, filaments equally or unequally attached within corolla tube, filament base sometimes appendaged, or base expanded; ovary generally superior, occasionally half-inferior, chambers 2 or 4, placentas 2, parietal, narrow; styles 2, terminal, branches 2, free to base or fused 3/4 to apex, stigmas generally entire or occasionally lobed; disk subtending ovary generally conspicuous. Fruit: capsule, loculicidal or loculicidal and septicidal; valves 2 or 4. Seed: (1--)2--many; attached fleshy structure 0.
Genera In Family: 3 genera, +- 76 species: Americas, Caribbean, Hawaii; some cultivated (Eriodictyon, Wigandia). Toxicity: Dermatitis sometimes caused by contact with glandular hairs (Eriodictyon parryi, Wigandia). Note: Previously treated within Boraginaceae in TJM2 and APG (1998) or as a tribe (Nameae) or subfamily (Namoideae) within Hydrophyllaceae; a distinct lineage from an emended Hydrophyllaceae (Ferguson 1998[1999]; Refulio-Rodríguez & Olmstead 2014).
eFlora Treatment Author: Genevieve K. Walden & Robert W. Patterson
Genus: EriodictyonView DescriptionDichotomous Key

Common Name: YERBA SANTA
Habit: Perennial herb to shrub. Stem: prostrate to ascending or erect; bark shredding. Leaf: cauline, alternate. Inflorescence: generally open, terminal. Flower: corolla funnel- to urn-shaped, white, lavender, or purple, generally hairy abaxially; stamens included, filaments generally hairy; ovary chambers 2, styles 2, generally hairy. Fruit: 1--3 mm wide; valves 4. Seed: striate, dark brown or black.
Species In Genus: 11 species: southwestern United States, Mexico. Etymology: (Greek: erio, wool, plus dictyon, net, from abaxial leaves)
eFlora Treatment Author: Gary L. Hannan
Reference: Ferguson 1998 Syst Bot 23:253--268
Unabridged Reference: Hannan 1988 Amer J Bot 75:579--588
Eriodictyon lobbii (A. Gray) Greene
Habit: Perennial herb, generally forming low mats > 1 m diam, rhizomed, short-glandular-hairy and dense-long-woolly-tomentose, some hairs stiff, spreading. Stem: prostrate to ascending, 16--50 cm, many-branched, woody at base occasionally or not. Leaf: 0.5--6 cm, 0.2--1.5 cm wide, oblanceolate to obovate, adaxially generally sticky, strongly rolled under, smallest clustered in axils. Inflorescence: pedicels 0--2 mm. Flower: sepals 5--12 mm, linear to narrow-lanceolate; corolla 7--12 mm, wide-funnel- to narrow-bell-shaped, purple to pink, limb 7--9 mm wide, lobes 2--3 mm, 2--4 mm wide; stamens 4--8 mm, attached 2--4 mm above corolla base, filament generally with 1--4 short hairs; style 4--6 mm. Fruit: 2--4 mm, loculicidal and septicidal. Seed: 1--2 mm, generally elliptic-ovoid, generally angled below, black, papillate. Chromosomes: 2n=28.
Ecology: Dry, sandy or rocky alluvial slopes, ridges, open pine forest; Elevation: 900--2350 m. Bioregional Distribution: KR, CaRH, n SNH, nw MP, Wrn (rare); Distribution Outside California: southern Oregon, western Nevada. Flowering Time: Jun--Aug Note: Move from Nama based on molecular data.
Synonyms: Nama lobbii A. Gray
Unabridged Note: Vegetative, flower branches dissimilar: vegetative with dark green, narrow leaves; flower with +- white, wide leaves.
Jepson eFlora Author: Gary L. Hannan
Reference: Ferguson 1998 Syst Bot 23:253--268
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

Previous taxon: Eriodictyon crassifolium var. nigrescens
Next taxon: Eriodictyon parryi

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Botanical illustration including Eriodictyon lobbii

botanical illustration including Eriodictyon lobbii


Citation for this treatment: Gary L. Hannan 2021, Eriodictyon lobbii, in Jepson Flora Project (eds.) Jepson eFlora, Revision 9,, accessed on June 27, 2022.

Citation for the whole project: Jepson Flora Project (eds.) 2022, Jepson eFlora,, accessed on June 27, 2022.

Eriodictyon lobbii
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© 2015 Neal Kramer
Eriodictyon lobbii
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© 2007 Steve Matson
Eriodictyon lobbii
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© 2022 Dylan Neubauer
Eriodictyon lobbii
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© 1984 Gary A. Monroe
Eriodictyon lobbii
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© 2006 George W. Hartwell
Eriodictyon lobbii
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© 2006 George W. Hartwell

More photos of Eriodictyon lobbii in CalPhotos

Geographic subdivisions for Eriodictyon lobbii:
KR, CaRH, n SNH, nw MP, Wrn (rare)
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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.
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).