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Key to families | Table of families and genera
This text currently parallels The Jepson Manual: Vascular Plants of California, Second Edition that is now available at the University of California Press.
Text appearing in blue on this page will not appear in the printed book; it will be displayed only on the Web. Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.
Stem: Erect underwater, ± prostrate on wet ground, branched or not; base not woody.
Leaf: petiole < 1/3 blade, flat, ± blade-like; blades narrow- elliptic to ± round, ± entire, bases wedge-shaped to ± round, tips round.
Inflorescence: flowers 1(2) per node.
Flower: sepals, petals wide- elliptic, membranous; sepals pale green; petals pale green-white; stamens (1) 3, 6, 8, filaments 1/2 × to ± equal petals, anthers wide- ovoid; styles 3–4.
Fruit: ± spheric or depressed-ovoid; chambers 3–4, each 3–15-seeded; pedicel generally ± 0.
Seed: ± visible through fruit wall, elliptic, straight or curved, brown to yellow-brown; surface net-like due to ridges between ± linear rows of pits.
± 25 species: worldwide. (Greek: fir tree, from a Eur sp. that suggests such a plant in miniature) At least 20× magnification needed for pits on seeds.
1. Sepals, petals 4; stamens 8; pedicels elongating in fruit to 2–3 × fruit; seeds curved 90–180° ..... E. californica
1' Sepals 2–3, petals 3; stamens (1) 3, 6; pedicels generally ± 0, occasionally ± elongating in fruit to <= 1/2 fruit; seeds straight or curved <= 30°
2. Fl subsessile to stalked, ± erect; fruit pedicel turned to 1 side; sepals 3, ± equal ..... E. ambigua
2' Fl sessile, erect; fruit pedicel not turned to 1 side; sepals 2, ± equal, or 3, 1 < others
3. Stamens (1) 6 (if 3, opposite petals) ..... E. heterandra
3' Stamens 3, alternate petals
4. Seed pits 10–15 per row ..... E. brachysperma
4' Seed pits 16–35 per row
5. Seed pits wider than long ..... E. chilensis
5' Seed pits ± as wide as long ..... E. rubella
Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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.