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!Euphorbia lathyris 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 1: 457. 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)
Contributor Text: A. RADCLIFFE-SMITH
Flower/Fruit: Fl. Per.: Apr.
Type: Syntypes: France and Italy, on field-margins, specimen no. 630/32 in Herb. Linn. (LINN); Hort. Cliff. no. 13 (BM,!).
Distribution: Distribution: Widespread, but nowhere known to be definitely native. Atlantic Islands, Europe, NW & NE Africa, Caucasus, China, Japan, N. & S. America. In waste places. 4500'/1370 m.
Illustration: Euphorbia lathyris L. (Illustration)
Map Location: B-7 Swat: Bahrein, 14 Apr. 1954, 5. Ali 26029 (BM, RAW).

 

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An erect, glabrous, glaucous annual or biennial, thick-stemmed herb up to 1.5 m tall, but more usually 0.5-1 m tall, often with numerous axillary leafy shoots arising near the middle of the stem. Stem-leaves opposite, decussate, sessile; leaf-blades linear-lanceolate, 3-10 x 0.4-1.7 cm, acute or subacute and mucronulate, shallowly cordate at the base, entire, penninerved, dark blue-green. Pseudumbel (0-) 2-4-rayed, sometimes many times bifid; axillary rays 0 or few below the pseudumbel; pseudumbel-leaves 2-4, opposite or whorled, ovate-lanceolate or oblong-lanceolate, slightly smaller than the upper stem-leaves; ray-leaves opposite, triangular-ovate, acutely acuminate, pale green, shorter and broader than the pseudumbel-leaves. Cyathia pedunculate, pale green, the peduncle purplish. Glands 2-homed, the horns divergent, spathulate, yellowish-green blotched with purple. Fruit hexalobate-subglobose, 0.9-1.3 x 1.3-1.7 cm, smooth when fresh, wrinkled with age, with a spongy mesocarp and woody endocarp. Styles erect or recurved, 2.5-3 mm long, ± free, deeply bipartite, the stigmas slightly thickened. Seeds ovoid, somewhat laterally compressed, truncate at both ends, obliquely so at the apex, 4.5-5 x 3-3.5 x 3.5-4 mm, vermiculate-rugulose, pale grey or brownish, with a small patelliform caruncle.
 
 
 
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