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Published In: Species Plantarum, Editio Secunda 2: 1405. 1763. (Sp. Pl. (ed. 2)) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
Type: Type: Linnean specimen 117/15 (LINN, holotype!).
Distribution: Distribution: Perhaps the most widely distributed and common species of the genus, found throughout the tropical and subtropical regions of the world, and penetrating further into the temperate regions than most of the tropical species. A common weed of waste and cultivated ground in Pakistan, ascending to at least 1220 m.
Photo: Amaranthus viridis L. (Photo)
Map Location: B-6 Peshawar District: Peshawar-Nowshera, B.L. Burtt 993 (E); B-7 Hazara: Kous, Saran Range, Duthie s.n., 3.ix.1899 (K); B-7 Kashmir: Muzaffarabad, R.R. & I.D. Stewart s.n., July 1939 (RAW); Saidu, Stewart & A. Rahman 24906 (RAW); C-6 North Waziristan: Miram Shah, Blatt. & Fz. (Aellen cit., l.c.); C-6 Kohat District: Ibrahimzai, near Hangu, M. Siddiqi & Y. Nasir 6420 (RAW); C-7 Rawalpindi District: Sohan River, Rawalpindi, Stewart 444 (K, RAW); C-7 Pehsawar District: between Attock and Hassan Abdal, B.L. Burtt 1017 (KUH); C-7 Jhelum District: Jhelum, Stewart 461 (RAW); C-7 Sargodha District: Sakesar, near Air Force Halt, M. Qaiser 2656 (KUH); D-4 Chagai District: Quetta, Kitamura s.n., 25.v.1955 (KUH); D-6 Dera Ismail Khan District: Dera Ismail Khan, Rech. f. 30020 a/b (W); D-6 Muzaffargarh District: c. 3 miles from Kot Addu on way to Muzaffargarh, Sultanul Abedin & Abrar Husain 9707 (KUH); D-7 Lahore District: Changa Manga, A. Kazim 158 (KUH); D-8 Lahore District: Lahore, T. Thomson s.n., March 1846 (K); E-3 Chagai Dist.: Dalbadin Rest House, M. Qaiser 69 (KUH) ; E-6 Dera Ghazi Khan Dist.: 1 mile from Rajanpur on way to Mithankot, Sultanul Abedin & Abrar Husain 9554 (KUH); Larkana District: Dokri, Syed Raiz Baqar Rizvi s.n., 23.xii.1955 (KUH); G-4 Karachi District: Karachi University Campus, Anwar Iqbal s.n., 12.x.1957 (KUH); G-5 Hyderabad District: between Tandojam and Mirpurkhas, A. Ghafoor & M. Qaiser 457 (KUH).


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Annual herb, erect or more rarely ascending, 10-75 (-100) cm. Stem rather slender, sparingly to considerably branched, angular, glabrous or more frequently increasingly hairy upwards (especially in the inflorescence) with short or longer and rather floccose multicellular hairs. Leaves glabrous or shortly to fairly long-pilose on the lower surface of the primary and most of the venation, long-petiolate (petioles up to c. 10 cm long and the longest commonly longer than the lamina), lamina deltoid-ovate to rhomboid-oblong, 2-7 x 1.5-5.5 cm, the margins occasionally obviously sinuate, shortly cuneate to sub-truncate below, obtuse and narrowly to clearly emarginate at the tip, minutely mucronate. Flowers green, in slender, axillary or terminal, often paniculate spikes c. 2.5-12 cm long and 2-5 mm wide, or in the lower part of the stem in dense axillary clusters to c. 7 mm in diameter; male and female flowers intermixed but the latter more numerous. Bracts and bracteoles deltoid-ovate to lanceolate-ovate, whitish-membranous with a very short, pale or reddish awn formed by the excurrent green midrib, bracteoles shorter than the perianth (c. 1 mm.). Perianth segments 3, very rarely 4, those of the male flowers oblong-oval, acute, concave, c. 1.5 mm, shortly mucronate; those of the female flowers narrowly oblong to narrowly spathulate, finally 1.25-1.75 mm, minutely mucronate or not, the borders white-membranous, midrib green and often thickened above. Stigmas 2-3, short, erect or almost so. Capsule subglobose, 1.25-1.5 mm, not or slightly exceeding the perianth, indehiscent or rupturing irregularly, very strongly rugose throughout. Seed c. 1-1.25 mm, round, only slightly compressed, dark brown to black with an often paler thick border, ± shining, reticulate and with shallow scurfy verrucae on the reticulum, the verrucae with the shape of the areolae.
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