Home Flora of Pakistan
Name Search
District Map
Grid Map
Inventory Project
Amaranthus retroflexus L. Search in The Plant ListSearch in IPNISearch in Australian Plant Name IndexSearch in NYBG Virtual HerbariumSearch in Muséum national d'Histoire naturelleSearch in Type Specimen Register of the U.S. National HerbariumSearch in Virtual Herbaria AustriaSearch in JSTOR Plant ScienceSearch in SEINetSearch in African Plants Database at Geneva Botanical GardenAfrican Plants, Senckenberg Photo GallerySearch in Flora do Brasil 2020Search in Reflora - Virtual HerbariumSearch in Living Collections Decrease font Increase font Restore font

Published In: Species Plantarum 2: 991. 1753. (1 May 1753) (Sp. Pl.) 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: Cultivated material from Uppsala Botanic Garden, Linnean specimen 1117/22 (LINN, holotype!).
Distribution: Distribution: A native of N. America south to N. Mexico; introduced into the Old World as a weed, but in more temperate regions than many of its allies, occurring in S. and C. Europe, Mediterranean N. Africa and temperate Asia from Cyprus and Turkey to Iran, Siberia, Middle Asia, Mongolia, China and Japan. Also adventive in Australia and S. America (Bolivia etc.) and probably elsewhere. Generally occurs as a weed of cultivation, occurring as such in the cooler parts of Pakistan, ascending to 1820 m or more.
Map Location: A-7 Gilgit: Gilgit, Stewart s.n., 14.vii.1954 (RAW); A-7 Chitral: Bombrait, A.R. Beg 1531 (RAW); B-7 Kashmir: 32 miles from Muzaffarabad on way to Srinagar, at Chinari, S.A. Faruqi & M. Qaiser 3011 (KUH); B-7 Hazara: Summer Nallah, Karakorum, highway near Sazim, M. Qaiser & A. Ghafoor 5433 (KUH); B-8 Kashmir: Skardu, M. Siddigi 1807 (RAW); D-4 Sibi District: Ziarat, Crookshank 417 (K), Y. Nasir & Zaffar Ali 5768 (RAW); D-5 Loralai Dist.: Loralai, Mohindar Nath 2071 (RAW); Asghara, A.H. Khan H. 1298 (RAW); E-4 Kalat District: Mastung, village Rudni, Apple Garden, M. Qaiser & A. Ghafoor 4374 (KUH).


Export To PDF Export To Word
Annual herb, erect or with ascending branches, (6-) 15-80 (-100) cm, simple or branched (especially from the base to about the middle of the stem). Stem stout, sub-terete to angled, densely furnished with multicellular hairs. Leaves furnished with multicellular hairs along the lower surface of the primary venation and often the lower margins, long-petiolate (petioles up to c. 6 cm, in robust plants not rarely equalling the lamina), lamina ovate to rhomboid or oblong-ovate, (1-) 5-11 x (0.6-) 3-6 cm, obtuse to subacute at the mucronulate tip, shortly cuneate or attenuate into the petiole. Flowers in greenish or rarely somewhat pink-suffused, stout, axillary and terminal spikes, which are usually shortly branched to give a lobed appearance, more rarely with longer branches, the terminal inflorescence paniculate, very variable in size, male and female flowers intermixed, the latter generally much more plentiful except sometimes at the tip of the spikes. Bracts and bracteoles lanceolate-subulate, pale-membranous with a prominent green midrib excurrent into a stiff, colourless arista, longer bracteoles subequalling to twice as long as the perianth. Perianth segments 5, those of the male flowers 1.75-2.25 mm, lanceolate-oblong, blunt to subacute, those of the female flowers 2-3 mm, narrowly oblong-spathulate to spathulate, obtuse or emarginate, ± green-vittate along the midrib, which ceases below the apex or is excurrent in a short mucro. Stigmas 2-3, patent-flexuose or erect, c. 1 mm. Capsule subglobose, c. 2 mm, usually shorter than the perianth, circumscissile, with an indistinct neck, rugose below the lid. Seed black and shining, compressed, c. 1 mm, almost smooth centrally, faintly reticulate around the margins.
© 2021 Missouri Botanical Garden - 4344 Shaw Boulevard - Saint Louis, Missouri 63110