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|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Picrodendraceae||View Description||Dichotomous Key|
|Genus:||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Habit: Plant generally 0.5--2 m; sap clear. Stem: axis erect; branches generally many, spreading to erect; twigs generally +- red, turning gray, generally hairy, glabrous in age; young lateral twigs short, sometimes becoming spine-like. Leaf: cauline, generally clustered at short, lateral branch tips; petiole < 2 mm; blade leathery, base obtuse to acute. Staminate Inflorescence: cyme, raceme, or panicle, occasionally clustered on short, lateral twigs, minute-bracted. Pistillate Inflorescence: flower 1. Staminate Flower: sepals 0.5--2 mm; filaments glabrous or hairy; nectary disk +- minute-lobed. Pistillate Flower: sepals 2--5 mm; nectary disk minute-lobed; ovary (2)3--5-chambered, style = chamber in number, free, +- flat, generally spreading. Fruit: +- spheric, generally lobed, glabrous or short-hairy, generally brown. Seed: smooth, shiny.
Species In Genus: 5 species: California, Arizona, Mexico. Etymology: (Latin: 4 seeds, from 4-lobed ovary in Tetracoccus dioicus)
eFlora Treatment Author: Grady L. Webster
Jepson Online Interchange
Key to TetracoccusPrevious taxon: Picrodendraceae
Next taxon: Tetracoccus dioicus
Citation for this treatment: Grady L. Webster 2016. Tetracoccus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=10100, accessed on July 30, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on July 30, 2016.