Common Name: HORNED-PONDWEED FAMILY Habit: [Annual] perennial herb from slender, creeping rhizome, glabrous, aquatic, submersed; monoecious. Stem: thread-like, weak. Leaf: alternate to +- whorled, linear; stipules fused to blade or free, sheath-like. Inflorescence: axillary, generally +- cyme, sessile, bract 1, cup-like; staminate flowers below pistillate. Flower: unisexual [bisexual]. Staminate Flower: perianth parts 0 (or 3, minute, scale-like); stamens 1 (or possibly 2--3 but then united, appearing as 1). Pistillate Flower: perianth parts 0; pistils (1)4--5(9), ovaries superior, 1-chambered, 1-ovuled, 1-styled. Fruit: achene-like drupe. Genera In Family: 4 genera, 10--12 species: +- worldwide. eFlora Treatment Author: Robert F. Thorne, Robert R. Haynes & C. Barre Hellquist Scientific Editor: Thomas J. Rosatti.
Citation for this treatment: Robert F. Thorne, Robert R. Haynes & C. Barre Hellquist 2012, Zannichellia palustris, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=48827, accessed on April 16, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 16, 2024.
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(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).
Data provided by the participants of the
Consortium of California Herbaria.
MAP LEGEND View all CCH records All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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CCH collections by month
Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).
