|University of California, Berkeley|
|Directory News Site Map Home|
|Jepson eFlora: Taxon page
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 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.
± 12 genera, 75–100 species: especially tropics, subtropics. [Haynes & Hellquist 2000 FNANM 22:7–25] —Scientific Editor: Thomas J. Rosatti.
Unabridged references: [Rogers 1983 J Arnold Arbor 64:383–420]
Key to Alismataceae
Perennial herb; roots not septate; flowers bisexual. Leaf: blade linear to ovate, tapered to base or petioled, base tapered to truncate, rounded, or ± lobed. Inflorescence: peduncle generally smooth; pedicels < 45 mm in fruit. Flower: receptacle ± flat; sepals generally 1–4 mm; petals entire to ± cut, white or pink; stamens generally 6; pistils many, free, in 1 whorl on margin of ± flat receptacle. Fruit: body generally 1.5–3 mm, erect, generally strongly compressed, lateral walls opaque to translucent, abaxially thin-ridged; beak < body, generally lateral.Key to Alisma
± 9 species: generally northern temperate. (Greek: ancient name) North American species need study.
Unabridged references: [Bjorkqvist 1968 Opera Bot 19:1–138]
Leaf: 7–45 cm; blade 5.5–15 cm, 1.5–10 cm wide, lanceolate to ovate, base truncate to ± lobed. Inflorescence: generally >> leaves; pedicels generally ascending to erect. Flower: petals ± cut, white; style ± erect, tip recurved. Fruit: lateral walls generally thick, opaque.
2n=14,28. Ponds; < 1600 m. California Floristic Province; to Canada, southeastern United States; Eurasia, eastern Africa, maybe Australia. [Alisma plantago-aquatica L., misappl.] Spring–fall [Online Interchange]
Unabridged synonyms: [Alisma subcordatum Raf., misappl.]
Previous taxon: Alisma lanceolatum
Next taxon: Damasonium
Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Apr 27 2015
Citation for this treatment: [Author of taxon treatment] 2013. Alisma, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=12464, accessed on Apr 27 2015
Copyright © 2014 Regents of the University of California
We encourage links to these pages, but the content may not be downloaded for reposting, repackaging, redistributing, or sale in any form, without written permission from The Jepson Herbarium.
|Geographic subdivisions indicated for the distribution of Alisma triviale|| 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.
READ ABOUT YELLOW FLAGS
(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