Jepson Flora Project: Jepson Interchange    

 
link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora.

GUNNERACEAE

GUNNERA FAMILY

Elizabeth McClintock

Perennial, often large, terrestrial or semi-aquatic, rhizomed, monoecious or dioecious
Stem ± 0
Leaves simple, generally alternate, from rhizome, often large; stipules 0 or scale-like; blades < to > petioles, ± round to reniform or ovate, generally toothed or lobed
Inflorescence: spike or panicle of spikes, terminal or from upper axils, large; flowers many, often pistillate below, staminate above, bisexual between
Flower very small; sepals generally 2 or ± 0; petals 2 or 0; stamens 1–2; ovary inferior, chamber 1, styles 2
Fruit: drupe
Genera in family: 1 genus, ± 35 species: Mex, s hemisphere; several cultivated. Sometimes included in Haloragaceae.

GUNNERA


Etymology: (J.E. Gunner, Norwegian bishop, botanist, 1718–1773)
Reference: [Osborne et al. 1991 Bioscience 41:224–234]
Blue-green algae sometimes in live rhizome, or roots, fix nitrogen for host plant.

Introduced

G. tinctoria (Molina) Mirbel


Leaf covered with stiff, fleshy prickles; blade 1–2 m, ± round, thick, rough, palmately lobed, irregularly toothed; main veins palmate, prominent, especially on lower side; petiole 1–1.5 m
Inflorescence 50–75 cm, < 10 cm wide; branches lateral, many, dense, 2–5 cm, stout
Flower: petals 2
Fruits many, red, conspicuous
Ecology: Uncommon. Disturbed, shaded, damp areas
Elevation: < 100 m.
Bioregional distribution: Central Coast (Marin, San Francisco cos.)
Distribution outside California: native to Chile
Synonyms: G. chilensis Lam

previous taxon | next taxon
bioregional map for GUNNERA%20tinctoria being generated
 
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Gunnera tinctoria
Retrieve dichotomous key for Gunnera
Overlay Consortium of California Herbaria specimen data by county on this map
Show other taxa with the same California distribution | Read about bioregions | Get lists of plants in a bioregion
Return to the Jepson Interchange main page
Return to treatment index page
Glossary
    FEEDBACK
  • This page is no longer being maintained.


University & Jepson Herbaria Home Page |
General Information | University Herbarium | Jepson Herbarium |
Visiting the Herbaria | On-line Resources | Research |
Education | Related Sites
Copyright © by the Regents of the University of California