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Cabomba caroliniana

Higher Taxonomy
Family: CabombaceaeView DescriptionDichotomous Key

Common Name: WATERSHIELD FAMILY
Habit: Perennial herb, aquatic, rhizomes in mud. Stem: elongate, leafy, ends floating. Leaf: of 2 kinds: submersed, palmately dissected, opposite [whorled], short-petioled, not peltate; floating, simple, alternate, petioled, peltate, entire; stipules 0. Inflorescence: flowers 1 on long axillary peduncles, generally on or above water surface. Flower: bisexual, parts +- free; sepals, petals each 3[4], alternate, persistent; stamens 3--6 or 18--36(51), filaments slender, anthers opening lengthwise; carpels [1]2--18, ovaries superior, 1-chambered, ovules [1]2--3[5]. Fruit: achene- or follicle-like, indehiscent. Seed: 1--3, aril 0.
Genera In Family: 2 genera, 6 species: temperate, tropical America, Africa, eastern Asia, Australia; some Cabomba species cultivated for aquaria. Note: Separation from Nymphaeaceae (carpels fused, fruits berry-like) confirmed by molecular data (Les et al. 1999 Syst Bot 24:28--46).
Unabridged Note: Pollinated by wind (Brasenia) or insects (Cabomba).
eFlora Treatment Author: Thomas J. Rosatti
Scientific Editor: Bruce G. Baldwin, Robert E. Preston.
Genus: CabombaView Description 

Common Name: FANWORT
Leaf: blade +- >= petiole; submersed leaves dissected into many +- thread-like to linear segments. Flower: perianth white to +- yellow [purple]; carpels [1]3[4], stigmas head-like. Seed: 1--3.
Species In Genus: 5 species: generally tropical America. Etymology: (Probably aboriginal)

Cabomba caroliniana A. Gray
NATURALIZED
Leaf: submersed petiole 7--30(40) mm, blade 10--40 mm, (15)30--60 mm wide, +- deltate to reniform; floating 0--few, 6--20(30) mm, 1--4 mm wide, linear-elliptic, +- entire, base +- notched. Flower: sepals (5)7--12 mm, white or cream; petals +- > sepals, colored as sepals except base with 2 +- yellow nectaries. Fruit: 4--7 mm. Chromosomes: 2n=+-78,+-104.
Ecology: Ponds, slow streams; Elevation: 0 m. Bioregional Distribution: SnJV; Distribution Outside California: Oregon; native to eastern United States (except northern part of range), southern South America. Flowering Time: May--Sep Note: Reportedly spreading rapidly in Sacramento Delta, expected widely.
eFlora Treatment Author: Thomas J. Rosatti
Jepson Online Interchange
Noxious Weed

Previous taxon: Cabomba
Next taxon: Nymphaeaceae

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botanical illustration including Cabomba caroliniana

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Citation for this treatment: Thomas J. Rosatti 2016. Cabomba caroliniana, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=16450, accessed on December 10, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on December 10, 2016.


Geographic subdivisions for Cabomba caroliniana:
SnJV;
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.