|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 cruentus L.
Habit: Monoecious. Stem: ascending or erect, 3--20 dm, branched or not, generally red-tinged, +- hairy distally especially when young. Leaf: petiole 2.5--9 cm; blade 25--145(200) mm, 15--100(120) mm wide, rhombic-ovate to lanceolate, base wedge-shaped, margins flat, tip acute. Inflorescence: terminal, panicle-like, erect to flexible, lateral axes many, thin, 3--8(12) cm, 0.5--1 cm wide (including flowers), dark red to purple or orange; bracts 1.8--2.5 mm, = perianth parts, lance-ovate, spine-like. Flower: staminate flowers at inflorescence tip, perianth parts 5, 2--2.4 mm, stamens 4--5; pistillate perianth parts 5, 1.5--2.2 mm, oblong to elliptic (obovate), not overlapping in fruit, tip acute (rounded); stigmas 3, erect. Fruit: circumscissile; 1.5--2.5 mm, ovoid, tip abruptly narrowed to short, thin beak, +- red to brown. Seed: 1.1--1.5 mm, +- spheric, +- white to ivory, obscurely dotted, or lenticular, dark red to black, smooth. Chromosomes: 2n=34.
Ecology: Disturbed areas, roadsides; Elevation: < 200 m. Bioregional Distribution: GV, CCo, SnFrB, SnGb; Distribution Outside California: worldwide cultivated ornamental, pseudocereal and vegetable; occasionally escapes from cultivation; native to Central America. Flowering Time: Jul--Oct
eFlora Treatment Author: Mihai Costea
Jepson Online Interchange
Previous taxon: Amaranthus caudatus
Next taxon: Amaranthus deflexus
Citation for this treatment: Mihai Costea 2017. Amaranthus cruentus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=12915, accessed on February 19, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 19, 2017.