Senna obtusifolia

Senna obtusifolia (L.) H.S.Irwin & Barneby (Syn: Cassia contorta Vogel; Cassia humilis M. Martens & Galeotti; Cassia humilis Collad.; Cassia obtusifolia L.; Cassia sunsub Forssk.; Cassia tala Desv.; Cassia tora sensu auct.; Cassia tora var. b Wight & Arn.; Cassia tora var. humilis Pers.; …; Cassia toroides Roxb.; Cassia toroides Raf.; Chamaefistula contorta G. Don; Diallobus falcatus Raf.; Diallobus tora (L.) Raf.; Diallobus tora (L.) Jackson; Diallobus uniflorus Raf.; Emelista tora (L.) Britton & Rose ex Britton & P. Wilson; Senna toroides Roxb.);

SEN-nuh — Latin form of Arabic word for a thorny bush
ob-too-sih-FOH-lee-uh — blunt leaf

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commonly known as: American sicklepod, arsenic weed, blunt-leaved senna, Chinese senna, coffee pod, coffeeweed, foetid sassia, Java bean, sicklepod
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Native: throughout tropic & warm-temperate regions; also widely naturalized

India (I); Andhra Pradesh ; Bihar ; Dadra-Nagar-Haveli ; Delhi ; Goa; Gujarat; Haryana ; Himachal Pradesh ; Jammu-Kashmir; Karnataka ; Kerala ; Madhaya Pradesh ; Maharashtra ; Orissa ; Pondicherry ; Punjab ; Rajasthan ; Tamil Nadu; Uttar Pradesh; West Bengal & other countries as per ILDIS;

As per efi thread:

Flora of Panipat: Cassia obtusifolia from Delhi Parallel branch near Panipat:
Cassia obtusifolia from Delhi Parallel Branch near Panipat
Small wild herb with yellow flowers

Yes very common along roadsides when I travelled from Udhampur, Jammu, Pathankot, though to Delhi, growing together with Sesamum, Martynia, Pathenium, etc. at many places. I also found an interesting plant among
these between Jammu and Udhampur, still in vegetative state. Any idea about it, I am uploading separately.

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Fabaceae-Caesalpinioideae (Caesalpiniaceae) :: Senna obtusifolia in Thane:
Senna obtusifolia (L.) H.S.Irwin & Barneby

SEN-nuh — Latin form of Arabic word for a thorny bush
ob-too-sih-FOH-lee-uh — blunt leaf

It has a long-standing history of confusion with Senna tora … Wikipedia
Many thanks to … for providing the keys.

Nov 11, 2011 … at Vaghbil, Thane, Maharashtra
commonly known as: American sicklepod, arsenic weed, blunt-leaved senna, Chinese senna, coffee pod, coffeeweed, foetid sassia, Java bean, sicklepod
Native: throughout tropic & warm-temperate regions; also widely naturalized
more views: Nov 11, 2011 … at Vaghbil, Thane, Maharashtra

Thanks … for this post i think leaves clearly different from S tora

Senna obtusifolia from Dakpathar, Uttarakhand-GSMAY2016/20 : 1 post by 1 author. Attachments (5)

Senna obtusifolia (L.) H. S. Irwin & Barneby
syn: Cassia obtusifolia
Dakpathar, Uttarkhand
September 16, 2011
Kindly note rounded leaf tip and single gland between lowest pair of leaflets, longer pedicels and glabrous ovary.
I could locate only one population in my collection. Members are requested to scrutinies their specimens before uploading.

Often confused with S. tora more so in west (so don’t believe most online images), which can be differentiated by somewhat narrowed apex, glands between lower two pairs of leaflets, staminodes often absent (only 7 stamens seen), shorter pedicel (up to 10 mm in flower, 15 mm in fruit), densely hairy ovary. Here are complete differences:
Senna tora: 30-120 cm tall; stipules 8-15 mm long, often falcate; leaflets 0.5-5 cm long and 0.5-2.5 cm wide, base oblique, apex delicately acute, glands between 2 lower pairs of leaflets; petiolules 1-2 mm long;bracts 2-4 mm long, pedicel 4-10 mm long, up to 1.5 cm in fruit, hairy; . Sepals ovate, 5-6 mm long. Petals 8-10 mm long; 3 upper stamens absent or staminodial; Ovary appressed, densely hairy; pod glabrescent; areoles on both sides of the seed, 1.5-2 mm wide, often almost as wide as the seed
Senna obtusifolia: 0.5-2 m tall; sti¬pule 5-10 mm long; leaflets 3 pairs, 1.5-6 cm long, 1.2-3 cm wide, base slightly oblique, rounded at the top, apex minutely acute; gland present between lowest pair of leaflets; , petiolules 2.5 mm long; Bracts 4-8 mm long, pedicel 1.2-3.5 cm long, in fruit up to 4.5 cm long, hairy; petals 12-15 mm long; 3 upper stamens staminodial. Ovary more or less glabrous; pods glabrous to subglabrous; areoles on both sides of the seed, narrow linear, .3-.5 mm wide.

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SK561 12 JUN-2017:ID : 6 posts by 4 authors. Attachments (5)

Location: Siliguri, India

Date: 25 May 2017

Altitude: 400 ft.

Cassia … ??

It looks like Cassia tora…

Thanks, … Should be under Senna now.

Look at the leaves and stems. For me, it looks more like Senna obtusifolia

Senna obtusifolia (L.) H.S.Irwin & Barneby

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Cassia Species for ID : Gujarat : 04JAN20 : AK-6 : 3 posts by 2 authors. Attachments (1)
Cassia Species seen on the banks of Narmada river in Rajpipla.

I have only one picture.

C. obtusifolia. I cd see only one gland.

Senna obtusifolia (L.) H.S.Irwin & Barneby :: Waghbil, Thane, Maharashtra :: Nov 11, 2011 · 9:34 AM IST: 6 images.
Senna obtusifolia (L.) H.S.Irwin & Barneby
Waghbil, Thane, Maharashtra :: Nov 11, 2011 · 9:34 AM IST :: about 3 m (10 ft) asl