Jepson eFlora: Taxon page
Vascular Plants of California
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Heterocodon rariflorum

Higher Taxonomy
Family: CampanulaceaeView DescriptionDichotomous Key
Habit: Annual to perennial herb [tree]. Leaf: generally cauline, generally simple, generally alternate, petioled or not; stipules 0. Inflorescence: cyme, panicle, raceme, spike, or flowers 1; terminal or in axils of leaf-like or reduced bracts. Flower: bisexual, cleistogamous or open, radial or bilateral, inverted (pedicel twisted 180°) or not; hypanthium generally present, +- fused to ovary; sepals generally 5; corolla radial to 2-lipped, petals generally fused, tube deeply divided on 1 side or not, lobes generally 5; stamens 5, free or +- fused (anthers, filaments fused into tube or filaments fused above middle); ovary inferior or 1/2 inferior (superior in fruit), chambers 1--3, placentas axile or parietal, ovules many, style generally 1, 2--5-branched. Fruit: generally capsule, open on sides or top by pores or short valves. Seed: many.
Genera In Family: +- 90 genera, +- 2500 species: worldwide. Note: Some cultivated for ornamental (Campanula, Jasione, Lobelia). Subfamilies sometimes treated as families. Positions of flower parts given after flowering inversion, if any. Parishella moved to Nemacladus.
eFlora Treatment Author: Nancy R. Morin, except as noted
Scientific Editor: Thomas J. Rosatti.
Genus: HeterocodonView Description 

Species In Genus: 1 sp. Etymology: (Greek: different bell, from cleistogamous and open flowers)
Heterocodon rariflorum Nutt.
Habit: Annual; roots fibrous. Stem: erect, 5--30 cm, simple or branched from base, 4-angled, thin, sparsely hairy. Leaf: cauline, 2--10 mm, round-cordate, thin, serrate, sessile. Inflorescence: flowers 1, sessile, terminal and at nodes, opposite or in axil of leaf. Flower: not inverted, lower cleistogamous; sepals 2--4 mm, widely triangular, leaf-like, toothed; corolla 3--5 mm, cylindric, tube white to pale blue, lobes +- 1.5 mm, triangular, ascending to suberect, spreading to erect at tips, deep blue; stamens +- 1.5 mm, filaments linear; ovary inferior, 2--3 mm, short-oblong, papery, generally with many long, stiff hairs, style 3 mm, distal 25% papillate. Fruit: open by lateral pores near base. Seed: 0.5 mm, elliptic.
Ecology: Vernally wet places; Elevation: < 2500 m. Bioregional Distribution: CA-FP; Distribution Outside California: to British Columbia, Montana, Nevada. Flowering Time: Apr--Jul
Jepson eFlora Author: Nancy R. Morin
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Botanical illustration including Heterocodon rariflorum

botanical illustration including Heterocodon rariflorum


Citation for this treatment: Nancy R. Morin 2012, Heterocodon rariflorum, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on February 16, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora,, accessed on February 16, 2019.

Heterocodon rariflorum
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© 2005 John Game
Heterocodon rariflorum
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© 2009 Keir Morse
Heterocodon rariflorum
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© 2010 Aaron Schusteff
Heterocodon rariflorum
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© 2007 Carol W. Witham
Heterocodon rariflorum
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© 2009 Keir Morse
Heterocodon rariflorum
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© 2016 Vernon Smith

More photos of Heterocodon rariflorum in CalPhotos

Geographic subdivisions for Heterocodon rariflorum:
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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).

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Data provided by the participants of the Consortium of California Herbaria.
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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.