Jepson eFlora: Taxon page
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Echinodorus berteroi

Higher Taxonomy
Family: AlismataceaeView DescriptionDichotomous Key

Habit: Annual, perennial herb from caudices, corms, stolons, rhizomes, or tubers, aquatic (+- emergent or on mud); roots fibrous, septate or not; monoecious, dioecious, or flowers bisexual. Stem: caudex short. Leaf: basal, simple, palmately veined, floating or not; submersed generally linear to ovate; emergent linear to sagittate. Inflorescence: generally scapose, umbel-, raceme-, or panicle-like; flowers, branches whorled. Flower: radial; sepals 3, generally green, generally persistent; petals 3, generally > sepals, white or pink; stamens 6--many; pistils 6--many, free or +- fused at base. Fruit: achene, generally compressed, beaked.
Genera In Family: +- 12 genera, 75--100 species: especially tropics, subtropics.
eFlora Treatment Author: Charles E. Turner, Robert R. Haynes & C. Barre Hellquist
Scientific Editor: Thomas J. Rosatti.
Genus: EchinodorusView Description 

Common Name: BURHEAD
Habit: Annual, perennial herb; roots not septate; flowers bisexual. Leaf: petiole angled; blade linear to ovate, with [without] translucent dots or lines, base tapered to cordate. Inflorescence: axes generally angled; peduncle generally smooth. Flower: receptacle convex; sepals generally 2--6 mm, dark green; petals generally entire, white; stamens 9--15; pistils many, free, spiralled on convex receptacle. Fruit: body +- compressed, generally ribbed; beak terminal [lateral].
Species In Genus: +- 26 species: America, especially tropics. Etymology: (Greek: spiny, leathery container, from fruit)

Echinodorus berteroi (Spreng.) Fassett
Habit: Annual (short-lived perennial herb). Leaf: 8--30 cm; blade coarsely veined; submersed blades linear, wavy, or generally 0; floating, emergent blades 6--14 cm, 3--15 cm wide, elliptic to cordate. Inflorescence: generally > leaves; flowers 1--3(4) per node; peduncle angled; pedicels 6--28 mm, generally ascending. Flower: petals 6--9 mm. Fruit: cluster bur-like; body 1.5--3 mm, ribs generally 5. Chromosomes: 2n=22.
Ecology: Ponds, ditches; Elevation: < 300 m. Bioregional Distribution: NCoRI, GV, CW, SW; Distribution Outside California: to southeastern United States, South America. Flowering Time: Mid-summer--fall
Synonyms: Echinodorus berteroi var. lanceolatus (Engelm. ex S. Watson & J.M. Coult.) Fassett; Echinodorus rostratus (Nutt.) Engelm.
eFlora Treatment Author: Charles E. Turner, Robert R. Haynes & C. Barre Hellquist
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botanical illustration including Echinodorus berteroi


Citation for this treatment: Charles E. Turner, Robert R. Haynes & C. Barre Hellquist 2016. Echinodorus berteroi, 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.

Geographic subdivisions for Echinodorus berteroi:
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.