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Echinodorus berteroi

Higher Taxonomy
Family: AlismataceaeView DescriptionDichotomous Key

Common Name: WATER-PLANTAIN FAMILY
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
NATIVE
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

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Citation for this treatment: Charles E. Turner, Robert R. Haynes & C. Barre Hellquist 2016. Echinodorus berteroi, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=23812, accessed on July 30, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on July 30, 2016.


Geographic subdivisions for Echinodorus berteroi:
NCoRI, GV, CW, SW;
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.
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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).

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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.