
Encyclopedia of Life · EOL (see source)
Amaranthus dubius
Sign in to saveAlso known as Chinese spinach, amaranth, spleen amaranth, red spinach, pigweed
species of plant
Species
SPECIES
- KingdomPlantae
- PhylumTracheophyta
- ClassMagnoliopsida
- OrderCaryophyllales
- FamilyAmaranthaceae
Plants glabrous or sparsely pubescent in distal parts. Stems erect, green, branched, 0.3-1 m. Leaves: petiole of proximal leaves equaling or longer than blade, becoming shorter distally; blade rhombic-ovate or ovate to elliptic, 3-12 × 2-8 cm, base broadly cuneate, margins entire, apex slightly acuminate to obtuse and faintly emarginate, mucronate. Inflorescences terminal panicles and axillary spikes; panicles erect or often drooping, green, dense, branched, leafless at least distally. Bracts lanceolate, shorter than 2 mm, shorter than tepals, apex spinescent. Pistillate flowers: tepals 5, oblong-spatulate to oblong, not clawed, 1.5-2 mm, apex acute, often very shortly mucronate; style branches strongly spreading, shorter than body of fruit; stigmas 3. Staminate flowers usually clustered at tips of inflorescence branches, sometimes gathered in proximal glomerules (as in A. spinosus); tepals 5, equal or subequal; stamens 5. Utricles ovoid or subglobose, 1.5-2 mm, slightly shorter than tepals, smooth to irregularly wrinkled, dehiscence regularly circumscissile. Seeds dark reddish brown to black, subglobose or lenticular, 0.8-1 mm diam., shiny, smooth. 2n = 64.
via GBIF · Kew POWO
Museum specimens
- Specimen records
- 1,291
- With media
- 932
- Family
- Amaranthaceae
- Collections
- SEMAHN, CICY, UACH, UJAT, CIBYC-UAEM, DERN-IMECBIO-CUCSUR-UDG
- Recorded in
- Mexico
Wikidata facts
- Instance of
- taxon
- Parent taxon
- Amaranthus
- Image
- Starr 040527-9001 Amaranthus dubius.jpg
Show 9 more facts
- Commons category
- Amaranthus dubius
- taxon rank
- species
- taxon common name
- pigweed
- taxon name
- Amaranthus dubius
- taxon range
- Loreto
- short name
- A. dubius
- Flora of the Hawaiian Islands URL
- naturalhistory2.si.edu/botany/hawaiianflora/speciesdescr.cfm?genus=Amaranthus&species=dubius
- invasive to
- Indonesia
via Wikidata · CC0
Gallery (3)
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