Amaranthus blitum

Das, Saubhik & Iamonico, Duilio, 2014, Amaranthus bengalense (Amaranthaceae) a new species from India, with taxonomical notes on A. blitum aggregate, Phytotaxa 181 (5), pp. 293-300: 297

publication ID

http://doi.org/ 10.11646/phytotaxa.181.5.4

persistent identifier

http://treatment.plazi.org/id/6033BB10-FFFC-FF81-FF3E-BF81FC6A2BBF

treatment provided by

Felipe

scientific name

Amaranthus blitum
status

 

Amaranthus blitum   L. var. oleraceus   (L.) Hooker filius (1885: 721)

Basionym: Amaranthus oleraceus Linnaeus (1763: 1403)   .

Type (lectotype designated by Filias et al. 1980: 150): — ASIA, Habitat in India, Herb. Linnaeus No. 1117.13 ( LINN!, image of the lectotype available at http://linnean-online.org/11639/)  

Amaranthus lividus   proles oleraceus   (L.) Thellung (1914: 321).

Amaranthus blitum subsp. oleraceus   (L.) Costea (in Costea et al. 2001 b: 984).

Description:—Herbs 2.5–9.0 dm tall, monoecious, annual (therophyte), often cultivated. Stem erect, glabrous, green to brown, branched. Leaves green, ovate-rhomboid (8.0–10.0 × 6.0–7.0 cm), mucronate, petioled (petiole as long as or shorter than the blade), margin entire, base cuneate. Synflorescences arranged in terminal spike-like, and in axillary glomerules. Bracts ovate [(1.4–)2.0–2.1(–2.5) × 0.8–1.0 mm)], as long as or shorter (⅓−½) than the perianth, membranous, with acute to acuminate tip. Staminate flowers with 3 tepals, usually ovate; stamens 3, shorter than tepals. Pistillate flowers with 3 equal or subequal tepals, oblong-lanceolate to spathulate (1.5–2.5 mm long), membranous with acute apex; stigma 3. Fruit reddish-brown, compressed subglobose (1.8–2.8 mm long), longer than the perianth, usually smooth, indehiscent. Seed broadly lenticular, black, with smooth surface, 1.2–1.8(–1.9) mm in diameter.

Distribution:— It occurs (especially as vegetable) all over India, especially in hot humid tropics of India.

Ecology:— It is cultivated but also escape from cultivation as weed. Flower time is May−June.

Selected specimen examined: — GREECE. Attica: in valle Cephissi prope Athenas, in hortis oleraceis, September−October 1891, sine coll. [sub Euxolus viridis   (L.) Moq.], rev. A. Cacciato (sub A. ascendens Lois.   ), rev. D. Iamonico (RO). INDIA. Maharashtra: Pune, Lonavala, 29 May 1964, Reddi (CAL); Khandesh, 6 March 1957, Mahajan (CAL). West Bengal: Jalpaiguri, 22 February 1975, Sirka (CAL). ITALY. Piemonte: Torino, Corso Inghilterra, roadsides, 09 August 2007, leg. Tisi, det. Iamonico (TO).

LINN

Linnean Society of London

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Caryophyllales

Family

Amaranthaceae

Genus

Amaranthus

Loc

Amaranthus blitum

Das, Saubhik & Iamonico, Duilio 2014
2014
Loc

Amaranthus lividus

Thellung, A. 1914: 321
1914