|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Amaranthaceae||View Description||Dichotomous Key|
|Genus:||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Habit: Annual or subshrub, canescent to densely woolly, or glabrous in age; hairs forked. Leaf: generally opposite, occasionally alternate at base, sessile or short-petioled, petiole <= 2.5 mm; blade round to lanceolate, cordate, base wedge-shaped or oblique, tip acute to obtuse, margins entire, papery to fleshy. Inflorescence: axillary head-like cymes, flowers 1--3(5), sessile, +- enclosed by 2 +- opposite leaves hardened and fused in age; bracts, bractlets persistent, ovate, scarious, woolly. Flower: bisexual; perianth parts 5, free, keeled, outer 3 > inner 2, scarious or leathery, glabrous or woolly, tip acute or obtuse; stamens 5, filaments fused at base into short tube, anthers 2-chambered, pseudostaminodes 0 or short, triangular, +- 0.2 mm; ovary +- spheric, ovule 1, style 0 or short, +- 0.1 mm, stigmas 2-lobed, deltoid (irregularly 3-lobed). Fruit: +- spheric, wall membranous. Seed: obovoid, brown-red.
Species In Genus: 7 species: western North America, West Indies, deserts. Etymology: (Ivar T. Tidestrom, Swedish-born botanist of southwest United States, 1864--1956)
eFlora Treatment Author: Mihai Costea
Jepson Online Interchange
Key to TidestromiaPrevious taxon: Nitrophila occidentalis
Next taxon: Tidestromia lanuginosa
Citation for this treatment: Mihai Costea 2016. Tidestromia, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=9092, accessed on May 30, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 30, 2016.