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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: Polygonaceae||View Description||Dichotomous Key|
|Genus:||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Habit: [Annual] perennial herb. Stem: ascending to erect, glabrous or hairy, ribs 0. Leaf: cauline, alternate, petioled or not; ocrea funnel-shaped, papery, persistent or not, glabrous to scabrous; blade narrowly lanceolate to ovate, entire. Inflorescence: axillary, terminal, raceme- or panicle-like; peduncle present or 0; pedicel present; flowers 1--5. Flower: bisexual, base stalk-like or not; perianth not enlarging, rotate, cream or green- to yellow-white or pink, glabrous, parts 5, fused +- 1/4, petal-like, +- of 2 kinds, outer 2 < inner 3, +- obtuse; stamens 8, filaments free, not wider basally, fused to perianth tube or not, glabrous, anthers ovate to elliptic, yellow to pink or red-purple; styles 3, erect to spreading, fused basally or not, stigmas head-like. Fruit: included or exserted, unwinged, 3-angled, yellow- or dark-brown, faces subequal. Seed: embryo generally curved.
Species In Genus: +- 25 species: western North America, Europe, Asia. Etymology: (Greek: ak, point, gone, angle, probably from 3-angled fruit)
Unabridged Synonyms: Polygonum sect. Aconogonon Meisn.
eFlora Treatment Author: Mihai Costea
Jepson Online Interchange
Key to AconogononPrevious taxon: Acanthoscyphus parishii var. parishii
Next taxon: Aconogonon davisiae
Citation for this treatment: Mihai Costea 2017. Aconogonon, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=67953, accessed on January 20, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on January 20, 2017.