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Key to families | Table of families and genera
Indexes to all accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Annual, perennial herb, submersed, emergent, floating, or on wet ground.
Leaf: simple, alternate or whorled, ± in basal rosette or not; blade linear (especially underwater) to round, sometimes sagittate or cordate, base generally sheathing, veins parallel; petiole inflated or not.
Inflorescence: raceme, spike, panicle, or 1-flowered, terminal but often appearing ± axillary, subtended by sheathing bract.
Flower: bisexual, radial or ± bilateral; perianth lobes 6 (in 2 series) [3,4], petal-like; stamens 3, 6 (in 2 series) [1,4], from various levels on perianth tube, equal or not, sometimes 3 sterile, modified; ovary superior, 1 or 3-chambered.
Fruit: many-seeded, loculicidal capsule [1-seeded utricle].
Seed: < 1 cm, longitudinally ribbed [or not].
± 6 genera, 30 species: most pantropical, some temperate. [Horn 2003 FNANM 26:22–45] Some cultivated as orns, some weeds, especially in rice fields. Pontederia cordata L. <Noxious weed> establishes from garden waste. —Scientific Editor: Thomas J. Rosatti.
Unabridged references: [Eckenwalder, J.E. and S.C.H. Barrett. 1986. Phylogenetic systematics of Pontederiaceae. Syst. Bot. 11: 373–391.]
Key to Pontederiaceae
Annual [per], generally emergent.
Stem: ± erect, stout [elongate].
Leaf: in basal rosettes; blade ovate to narrowly lanceolate; petiole not inflated, generally > blade.
Inflorescence: raceme, reflexed after flower.
Flower: ± radial; perianth bell-shaped to rotate, tube < 1 cm, parts 6, nearly free; stamens 6, 1 generally > others; ovary 3-chambered.
6 species: tropical Africa, Asia, ne Australia. (Greek: 1 apart, from 1 stamen > others)
Previous taxon: Heteranthera limosa
Next taxon: Monochoria vaginalis
Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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|Bioregions in which taxon occurs||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.|
Chart based on elevation range in Manual and elevations and coordinates of CCH records.
Data provided by the participants of the Consortium of California Herbaria.
Note: About half of the CCH records include both elevation and coordinates.
| Data provided by the participants of the Consortium of California Herbaria.
View all CCH records