Jepson Flora Project: Jepson Interchange    

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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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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.


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.


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

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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
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