Senna surattensis

Senna surattensis (Burm.f.) H.S.Irwin & Barneby (syn. Cassia fastigiata Vahl; Cassia galuca Lam.; Cassia galuca var. koenigii Kurz; Cassia galuca var. suffruticosa (Roth) Baker; Cassia glauca var. suffruticosa (Koenig ex Roth) Baker; Cassia suffruticosa Roth; Cassia surattensis Burm.f.; Cassia surattensis subsp. suffruticosa (Roth) K.Larsen & S.S.Larsen; Cassia surattensis var. suffruticosa (Roth) Ali; Psilorhegma planisiliqua (L.) Britton & Rose; Psilorhegma suffruticosa (Roth) Britton & Rose; Psilorhegma suffruticosa (Koenig ex Roth) Britton; Senna speciosa Roxb.; Senna surattensis var. suffruticosa (Roth) Isely);

India (N); Andhra Pradesh ; Arunachal Pradesh ; Assam ; Bihar ; Delhi ; Goa ; Gujarat ; Haryana ; Himachal Pradesh; Jammu-Kashmir ; Karnataka ; Kerala ; Madhaya Pradesh ; Maharashtra; Manipur ; Meghalaya ; Mizoram ; Nagaland ; Orissa ; Pondicherry ; Punjab; Rajasthan ; Sikkim ; Tamil Nadu; Tripura ; Uttar Pradesh ; West Bengal & other countries as per ILDIS;

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Fwd: Hi sir Images of Senna surattensis. : 7 posts by 5 authors. Attachments (6)
A genuine case of Senna surattensis, I think ! Please give your opinion.

From Chalisgaon, Maharashtra. Shot on 10 11 2019

I too accepted with S. surattensis,

very nicely done. I like the added effort spent in demonstrating the leaflet features diagnostic to the T

Efi thread

In the post quoted above, Guruji had said

”I wonder if we really have true Senna surattensis in India. I would be happy if some one uploads one. ”

This statement lingered in subconscious.

When I saw the fb post by …, number of leaflet pairs immediately triggered that memory …it was an eureka moment !!

I requested … and he obliged, mailed his images to me and I promptly forwarded it to group.

(Sadly, though the name of species derives from Surat, no tree I have seen yet in Surat or outskirts.)

Following link was very helpful in convincing people on fb about ID of this tree.
https://www.cabi.org/isc/3#tosummaryOfInvasiveness

Thanks, …, for finally solving the mystery.

i love the detailed photography and with added thoughtfulness to show the Glands only present on rachis between leaflets, the lowest 4 ones, leaflets can be 3-9 pairs. we have had a lot of discussions but the ultimate crux is this presence of glands and their position
http://flora.huh.harvard.edu/china/PDF/PDF10/Senna.pdf

Thanks very much … for sorting the characteristics of this plant. Photo-illustration is a great help to many !!

Fabaceae-Caesalpinioideae (Caesalpinioideae) Week: Looking for true Senna surattensis:

There seems to be some confusion with regard to whether Cassia glauca Lam. (vol. 2, page 265 of FBI) is treated as simple synonym of now Senna surratensis (such authors naturally mention 4-9(10) pairs of leaflets) or distinct Senna sulfurea (or Senna surattensis subsp. sulfurea; with 4-6 pairs of larger (4-10 cm) leaflets) and Senna surratensis (with 6-9 pairs of smaller (2-5 cm long) leaflets).

Let us forget the nomenclature temporarily. There is no denying that both taxa occur in India

1. One with 4-6 pairs leaflets (usually 5 pairs), larger leaflets (4-10 cm long), longer stalk of fruit (10-20 mm long).. (C. glauca of FBI, Senna surattensis subsp. glauca of many authors; Senna sulfurea of Flora China and The Plant List)

2. Second with 6-9 pairs of smaller leaflets (2-5 cm long) and shorter fruit stalk (5-7 mm long) (C. glauca var. suffruticosa of FBI, Senna surattensis of Flora China and the Plant List)
Most of us have been uploading the first taxon. I would request members to find and upload the second. It would be really interesting.

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Cassia for ID :
This plant is from Riyadh gardens, KSA. It appears to be Cassia bahamensis? Pl validate

cassia spectabilis

Definitely not C. spectabilis

It somewhat resembles Senna sulfurea (= Cassia glauca). Let’s see how the pods looks like.
Leaflets in C. bahamensis seem to have acute apices.

Finally I concluded that it is Senna surattensis (Burm.f.) Irwin & Barnay.
Thank you … for the possible clue.

Is this the species you were looking for all along- identified as Senna surattensis (Burm.f.) Irwin & Barnay by … ?
efi site link: Senna surattensis

I think … finally got it. I can count up to 8 pairs of leaflets. Both S. spectabilis and S. bahamensis are much different with acute to acuminate leaflets, much longer than broad. Any focus on glands and fruiting twig would nail it.
Thanks … We were looking for it for a long time. Most Floras, especially Indian, have long been confusing S. sulphurea and S. surattensis, till Fl. China solved this confusion.