Senegalia caesia

attaching close-ups of leaves and inflorescence

It looks like Acacia caesia; because the leaf is not clear. if prickles are recurved; leaves 15-20 cm long, pinnae 6-8 pairs, 3.5-9.5 cm; glands on rachis between several upper pinnae; leaflets 8-15 pairs,

It seems Acacia caesia (L.) Willd

ANSEPT37/37 Acacia caesia (L.) Willd. : 3 posts by 2 authors. Attachments (5)

Family: Caesalpiniaceae
Date: 14th September 2015
Place: Thattekad Bird Sanctuary, Ernakulam District, Kerala
Habit: Scandent shrub
Habitat: Disturbed forest

= Senegalia caesia (L.) Maslin, Seigler & Ebinger.

Any spines or prickles?

Sorry for the late response. At this place their is no net connectivity. As for the spines i cannot say for certain but not big spines definitely.

this is the same plant- efi thread

prickles are there, so it may Acacia penneta if it is a climber like structure.

I think that this is Senegalia (Acacia) caesia as the main vein of leaflets are clearly  starting centrally or subcentrally at base as evident in the images. In S. pennata, the main vein of leaflets start from the margins at base.

Thanks, …, for such detailed pictures.
Pl. check comparative images of different species in efi at Acacia

Excellent photography.

The habit is tree; prickles scattered on branchlets, inflorescences terminal panicles of heads and midvein of leaflets starting centrally at base – when these characters are combined, they lead on to Senegalia caesia (previously Acacia caesia).

Thank you … … thank you for pointing out characters before telling us the species.
I am trying to understand if there is variability of characters within this species. Going by JCB Herbarium, the key mentions the presence of glands on the rachis, at the base of all pairs of pinnae. I checked a few of the leaves to confirm where the glands were present and they were all consistent with one at the base and either 2 – 3 at the top most pinnae.
Also, the presence and absence of spines is the pedicel – is that also a variable character?

Your observations were correct.

S. torta,

What are the species of Acacia listed in your area ?

Acacia caesia var. subnuda, A.farnesiana, A.megaladena, A.pennata & A.pruinescens are recorded in Mizoram

As per local literature matched with Acacia caesia var. subnuda,  now it’s Senegalia caesia,

My guess is: This tree can be Acacia angustissima (Mill.) Ktze.
you can see the link:
missouriplants

For me it may be some species of Albizzia or Mimosae. All the
characters need to be checked before arriving at the confirmation.

May be Senegalia caesia(L.) Maslin et al. as per comparative images at Acacia.

Noted. Thanks.

.

Swamy/New series/ID/49 – climber for ID.: 5 high res. images.

Yes, there seems to be some confusion. But both seem to be different as per
Senegalia intsia (L.) Maslin, Seigler & Ebinger:
POWO, ILDIS, FoPI, CoL.
Senegalia caesia (L.) Maslin, Seigler & Ebinger
POWO, ILDIS, FoPI
However, I could not find the keys between the two. Pl. check with descriptions give in FoPI at links above.

From the earlier books both appear to be same as per books:
Forest Plants of Eastern India – Page 225
Mansfeld’s Encyclopedia of Agricultural and Horticultural … – Page 600
Indian Medicinal Plants: A Compendium of 500 Species
It appears there was some taxonomic confusion somewhere.
But without keys and clear cut differences, it may be difficult to reach some conclusions.
So until then let us keep it at Senegalia caesia, like other observations.

Acacia intsia or Senegalia intsiais a nomen confusum. Dr. Bruce Maslin, in a personal communication finally also agreed to my arguments. I take this plant as Senegalia caesia.

.

References:

POWO  Catalogue of Life  GRIN  The Plant List  Annotated checklist of the flowering plants of Nepal (Acacia intsia (L.) Willd. syn. Acacia caesia (L.) Wight & Arn.) Flora of China  India Biodiversity Portal  IUCN Red List (LC) 

Flora of Ranga Reddi District Andhra Pradesh, India By T. Pullaiah, M. Silar Mohammed (Description & Keys– Acacia caesia, Acacia chundra, Acacia farnesiana, Acacia leucophloea, Acacia nilotica, & Acacia torta)