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|Family: Haloragaceae||View Description||Dichotomous Key|
|Genus: Myriophyllum||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Myriophyllum spicatum L.
Habit: Monoecious; winter buds 0. Stem: > 1 m, +- red to light green when dry. Leaf: submersed leaves < 3 cm, segments >= 28, < 10 mm, linear, angles, spacing uniform throughout leaf. Inflorescence: spike, 4--8 cm, emergent; bracts 1--3 mm, < flowers, lanceolate, entire to toothed.
Ecology: Uncommon. Ditches, lake margins; Elevation: < 2080 m. Bioregional Distribution: NCoRI, SNF, n SNH, GV, SnFrB, SCo, SnBr, PR, MP; Distribution Outside California: to British Columbia, eastern Canada, eastern United States; native to Eurasia, northern Africa. Flowering Time: Jul--Sep
Unabridged Note: Recognizable by large number of parallel leaf segments that stand in acute angles to rachis.
eFlora Treatment Author: Adolf Ceska & Oldriska Ceska
Jepson Online Interchange
Previous taxon: Myriophyllum sibiricum
Next taxon: Myriophyllum verticillatum
Citation for this treatment: Adolf Ceska & Oldriska Ceska 2017. Myriophyllum spicatum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=34276, accessed on February 21, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 21, 2017.