|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
|Family: Amaranthaceae||View Description||Dichotomous Key|
|Genus: Amaranthus||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Amaranthus hybridus L.
Habit: Monoecious. Stem: erect, 30--120(200) cm, branched or not, green, hairy distally. Leaf: petiole 30--70 mm; blade (30)50--120 mm, (10)20--60 mm wide, rhombic-ovate or wide-lanceolate, base wedge-shaped, tip acute, margins flat. Inflorescence: terminal, panicle-like, erect or nodding, branches many, thin, flexible, 2.5--7(12) cm, 0.5--1 cm wide (including flowers), green or olive green; bracts 2--4 mm, 1.2--2 × perianth, spine-like, lance-linear. Flower: staminate flowers generally at inflorescence tips, perianth parts 5, 2--3 mm, stamens 5; pistillate perianth parts 5, 1.5--2.5(3) mm, +- = or 1 longer, erect, lance-oblong to linear, tip acute or acuminate; stigma branches 3, erect. Fruit: circumscissile; 1.5--2.2 mm, ovoid to obovoid, irregular-dehiscent or indehiscent, occasionally on same pl, lid strongly wrinkled at base. Seed: 0.9--1.4 mm, lenticular, widely elliptic to round, brown to black, smooth to finely dotted on margin, shiny. Chromosomes: 2n=32.
Ecology: Disturbed areas, agricultural fields; Elevation: < 300 m. Bioregional Distribution: GV, CW, SW; Distribution Outside California: United States, southern Canada; native to eastern North America. Flowering Time: Jun--Nov Note: Naturalized in tropics, subtropics, and temperate regions worldwide.
eFlora Treatment Author: Mihai Costea
Jepson Online Interchange
Previous taxon: Amaranthus fimbriatus
Next taxon: Amaranthus hypochondriacus
Citation for this treatment: Mihai Costea 2016. Amaranthus hybridus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=12924, accessed on October 28, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on October 28, 2016.