Common Name: PICKEREL-WEED FAMILY Habit: 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]. Genera In Family: +- 6 genera, 30 species: most pantropical, some temperate. Note: Some cultivated as orns, some weeds, especially in rice fields. Pontederia cordata L. establishes from garden waste. eFlora Treatment Author: Charles N. Horn & Elizabeth McClintock Scientific Editor: Thomas J. Rosatti.
Common Name: WATER HYACINTH Habit: Perennial herb [annual], generally free-floating. Stem: stout, erect, often connected by stolons. Leaf: +- in basal rosette; blade generally ovate, round or cordate; petiole inflated or not, generally > blade. Inflorescence: spike [panicle, 1-flowered]. Flower: +- bilateral; perianth funnel-shaped, lobes 6; stamens 6, unequal in length; ovary 3-chambered. Species In Genus: +- 7 species: native to American tropics, perhaps American subtropics, Africa; some widely naturalized. Etymology: (J.A.F. Eichhorn, Germany, 1779--1856)
Eichhornia crassipes (Mart.) Solms
NATURALIZED Stem: > 30 cm. Leaf: < 10 cm wide. Inflorescence: 5--15 cm, few- to many-flowered. Flower: perianth lilac or pale blue to white. Ecology: Locally abundant. Ponds, sloughs, waterways; Elevation: < 200 m. Bioregional Distribution: GV, SnFrB, SCo, PR; Distribution Outside California: widely naturalized, native to tropical America. Flowering Time: Jun--Oct Note: Plants multiply, spread rapidly vegetatively; perhaps world's most troublesome aquatic weed. Jepson eFlora Author: Charles N. Horn & Elizabeth McClintock Jepson Online Interchange Noxious Weed listed by CDFA Weed listed by Cal-IPC Previous taxon: Eichhornia Next taxon: Heteranthera
Botanical illustration including Eichhornia crassipes
Citation for this treatment: Charles N. Horn & Elizabeth McClintock 2012, Eichhornia crassipes, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=23856, accessed on December 09, 2019.
Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on December 09, 2019.
MAP CONTROLS 1. You can change the display of the base map and layers by clicking on the layer control box in the upper right-hand corner.
2. California county polygons can be turned off and on in the layer control box.
3. Filling of Jepson subdivision polygons can be turned off and on in the layer control box.
4. Moving the cursor over any numbered cluster will show the range boundary of the included specimens (with a blue polygon).
5. Marker clustering can be turned off by clicking this link:
Marker Clustering OFF WARNING: Turning this off might cause maps with large numbers of specimens to load slowly.
(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.
READ ABOUT YELLOW FLAGS
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.