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|Family: Amaranthaceae||View Description||Dichotomous Key|
|Genus: Alternanthera||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Alternanthera philoxeroides (Mart.) Griseb.
Habit: Aquatic to semi-terrestrial, stoloniferous. Stem: prostrate, mat-forming, 50--120 cm, young stems and leaf axils white-hairy, in age +- glabrous or hairs in 2 lines. Leaf: petiole 2--10 mm; blade 30--130 mm, 5--35 mm wide, elliptic to obovate, glabrous or +- hairy near wedge-shaped base, tip obtuse or acute. Inflorescence: 1.2--1.7 cm diam, spheric; peduncle 1--9 cm; bract 2--2.5 mm, ovate to lanceolate, acute to acuminate, not keeled, glabrous. Flower: perianth parts 5--7 mm, +- equal, lanceolate or oblong, 1-veined, tip acute; stamens 5, filaments 2.5--3 mm, pseudostaminodes +- = stamens, oblong-linear; ovary obovoid. Fruit: unknown in North America. Chromosomes: 2n=100.
Ecology: Shallow water (< 2 m) or wet soils, marshes, edges of ponds; Elevation: < 200 m. Bioregional Distribution: SnJV, SCo; Distribution Outside California: to southeastern United States, Central America; native to South America. Flowering Time: May--Oct Note: Only vegetative reproduction in North America.
eFlora Treatment Author: Mihai Costea
Jepson Online Interchange
Previous taxon: Alternanthera caracasana
Next taxon: Amaranthus
Citation for this treatment: Mihai Costea 2017. Alternanthera philoxeroides, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=12856, accessed on January 18, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on January 18, 2017.