Lindernia procumbens

 
Lindernia procumbens (Krock.) Borbas, ; Bekesm. Fl. 80 (1881) (Syn: Linderniapyxidaria L.; Vandelliaerecta Benth.) as per Annotated checklist of Flowering plants of Nepal;
 

The species occurs from southern Europe, east through Siberia, Afghanistan, Kazakhstan, India, Pakistan and Nepal east to southern China (Anhui, Guangdong, Guangxi, Guizhou, Heilongjiang, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Sichuan, Taiwan, Yunnan, Zhejiang), Japan, Taiwan (Province of China), Lao PDR, Thailand and Viet Nam and Indonesia (Yamazaki 1990, Cook 1996, Kress et al. 2003, Nguyen et al. 2005, Newman et al. 2007, Ahmed 2009, Kwek et al. 2009, GRIN 2011, NMNH 2011).  
(From  IUCN Red List (LC) (Lindernia procumbens (Krock.) Philcox syn. Lindernia palustris Hartmann )
 
Annual erect herbs to 15 cm tall. Leaves 1-2.5 x 0.5-1 cm, elliptic to ovate -elliptic, margins entire or sub-crentae, scabrid, 3-5-nerved from base, sessile. Flowers solitary, axillary; pedicles to 1.5 cm long, slender. Calyx deeply 5-lobed almost to the base, 2-3 mm long; lobes linear-lanceolate. Corolla 3-6 mm long, white, upper lip almost circular. Stamens 4, fertile; anterior filaments with a small globular or slender spur at the base. Capsule ellipsoid, equal to or slightly longer than calyx. Seeds yellow, compressed-cylindric. 
Flowering and fruiting: January-March 
Along river banks 
Indo-Malesia 
(From India Biodiversity Portal (Lindernia procumbens (Knock.) Borb.) 

 
 
https://08511630493324166816.googlegroups.com/attach/d2bd4ae6b41d65cb/L.procumbens_DSR_2.JPG?part=0.2&view=1&vt=ANaJVrEdcvCwMp_YjFGxggAXJu5SeUnTpFYG4yZLksVW6JAc1WPO-uvtsFfCayFqdBrilnsMKqiZt87ohdVjYHWtlDre6Ib84TK88lW6eZX4t46vpldZ84U
https://08511630493324166816.googlegroups.com/attach/d2bd4ae6b41d65cb/L.procumbens_DSR_1.JPG?part=0.1&view=1&vt=ANaJVrFlnfXAxFu-wnQaKLkdzBxNMZR5p5Us3xnjfhLPaeJI6tYvYJVCpIP1OhLWFaQkhQHqQ9goR4rza5AcZdgT7QZoStwCVpI2-Otar3gt9sBtCfznb4A
Lindernia procumbens (Krock.) Haines is a common rainy season weed in Pantnagar.
Now it is in Linderniaceae
Photographed in Pantnagar
Thanks, ..., for the new species for efi.
But why its taxonomy is so confusing to all the following sources & which one to take as correct for efi:
Scrophulariaceae of the Western Himalayas By Francis . Pennell (Lindernia pyxidaria L. syn. Gratiola integrifolia Roxb., Vandellia erecta Benth.)
GRIN (2005- Lindernia procumbens (Krock.) Philcox syn. (≡) Anagalloides procumbens Krock. (basionym), (=) Lindernia pyxidaria auct.)
Flora of China (Lindernia procumbens (Krocker) Borbas syn. Anagalloides procumbens Krocker, Fl. Siles 2(1): 398. 1790; Lindernia erecta (Bentham) Bonati; Vandellia erecta Bentham.)
India Biodiversity Portal (Lindernia procumbens (Knock.) Borb.)
IUCN Red List (LC) (Lindernia procumbens (Krock.) Philcox syn. Lindernia palustris Hartmann)
 
  
References:
GRIN (2005- Lindernia procumbens (Krock.) Philcox syn. (≡) Anagalloides procumbens Krock. (basionym), (=) Lindernia pyxidaria auct.) 
Scrophulariaceae of the Western Himalayas By Francis . Pennell (Lindernia pyxidaria L. syn. Gratiola integrifolia Roxb., Vandellia erecta Benth.)
Flora of China (Lindernia procumbens (Krocker) Borbas syn. Anagalloides procumbens Krocker, Fl. Siles 2(1): 398. 1790; Lindernia erecta (Bentham) Bonati; Vandellia erecta Bentham.) 
India Biodiversity Portal (Lindernia procumbens (Knock.) Borb.) 
IUCN Red List (LC) (Lindernia procumbens (Krock.) Philcox syn. Lindernia palustris Hartmann)
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