Jepson eFlora: Taxon page
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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
eFlora Treatment Author: Nancy R. Morin
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botanical illustration including Heterocodon rariflorum


Citation for this treatment: Nancy R. Morin 2016. Heterocodon rariflorum, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on May 06, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on May 06, 2016.

Heterocodon rariflorum
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© 2003 Steve Matson
Heterocodon rariflorum
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© 2008 Keir Morse
Heterocodon rariflorum
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© 2011 Barry Breckling
Heterocodon rariflorum
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© 2010 Aaron Schusteff
Heterocodon rariflorum
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© 2009 Keir Morse
Heterocodon rariflorum
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© 2015 Neal Kramer

More photos of Heterocodon rariflorum in CalPhotos

Geographic subdivisions for Heterocodon rariflorum:
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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.
Blue line denotes eFlora flowering time.