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    Vascular Plants of California
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Porterella carnosula

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: PorterellaView Description 

Species In Genus: 1 sp. Etymology: (Thomas C. Porter, United States botanist, 1822--1901)

Porterella carnosula (Hook. & Arn.) Torr.
Habit: Annual, 2--30 cm, emergent or terrestrial, glabrous. Stem: erect, branches from base or 0. Leaf: cauline, sessile; blade (5)12--15 mm, (1)3--5 mm wide, narrowly ovate (aerial) to narrowly triangular (submersed), entire or few-toothed. Inflorescence: raceme; bract 1 per flower, leaf-like, ascending; pedicels in fruit 1--3 cm. Flower: inverted, fragrant; hypanthium 1--2.5 mm; sepals >= fruit, narrowly triangular; corolla >> calyx, blue, with a symmetric yellow spot on lower lip, tube entire, 4--5 mm, cylindric, strongly 2-lipped, adaxial lobes 2, 1--2 mm, narrowly triangular, erect, abaxial lip with 2 low ridges, 3--8 mm, +- round, spreading; stamens fused, anthers +- 2 mm, tufted, 2 short anthers also with horn-like appendage +- 0.5 mm; ovary 2-chambered, stigma cup- or plate-like, papillate. Fruit: 5--10 mm, narrowly obconic to cylindric, valvate; top acute, +- pointed, or rounded. Seed: 1 mm, smooth except finely striate. Chromosomes: n=12.
Ecology: Moist, grassy roadsides, lake and pond edges; Elevation: 1300--3500 m. Bioregional Distribution: CaRH, SNH, GB; Distribution Outside California: to Wyoming, Arizona. Flowering Time: Jun--Aug
eFlora Treatment Author: Nancy R. Morin
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botanical illustration including Porterella carnosula


Citation for this treatment: Nancy R. Morin 2012, Porterella carnosula, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on July 19, 2018.

Citation for the whole project: Jepson Flora Project (eds.) 2018, Jepson eFlora,, accessed on July 19, 2018.

Porterella carnosula
click for enlargement
© 2005 Steve Matson
Porterella carnosula
click for enlargement
© 2005 Steve Matson
Porterella carnosula
click for enlargement
© 2007 Steve Matson
Porterella carnosula
click for enlargement
© 2007 Steve Matson
Porterella carnosula
click for enlargement
© 2007 Steve Matson
Porterella carnosula
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© 2002 Gary A. Monroe

More photos of Porterella carnosula in CalPhotos

Geographic subdivisions for Porterella carnosula:
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).

View elevation by latitude chart
Data provided by the participants of the Consortium of California Herbaria.
View all CCH records

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.