Clerodendrum lasiocephalum C.B.Clarke as per efi thread;

Shrub 3-10 ft tall. Bark brown, thin, branches and branchlets obtusely quadrangular, pubescent, nodes flattened. Leaves opposite, ovate-elliptic or sub-orbicular, 8-36 x 6-24 cm across, base acute, margin minutely dentate-serrate, apex acuminate, chartaceous, glabrous above and slightly pubescent beneath, lateral veins 6-9 on either side of the midrib, veins impressed above and distinct beneath, densely pubescent on the veins, petiole 1-20 cm long, exstipulate. Inflorescence terminal pyramidal thyrsoid panicle or corymb, compact about 10 cm wide, subsessile or on stout peduncles, bracts lanceolate, Flowers bisexual, zygomorphic, scarlet red, pedicel slender, about 1-2 cm long, calyx campanulate 5 toothed, teeth divided, leaf like, lanceolate, apex acuminate, accrescent in fruit, corolla hypocrateriform, subactinomorphic, 5 unequal lobed, scarlet red, lobes obovate, corolla tube narrow, glabrous, about 3-4 cm long, stamens 4, didynamous, exserted, filaments filiform, red, anthers oblong, bilobed, reddish brown, ovary bicarpellary, 4 lobed, 4 loculed, style filiform about the same length as the stamens, red, stigma shortly 2-fid, Fruit drupaceous globose, red, about 8 mm in diameter.

Deciduous forests undergrowth, roadsides.
Local Distribution: Arunachal Pradesh, Assam, Manipur, Meghalaya, Nagaland. 
Global Distribution: Asia: India, Myanmar.
(Attributions- Ganeshaiah, K. N., UAS, Bangalore, India. Kailash, B. R., UAS & ATREE, Bangalore, India. Indian Bioresource Information Network (IBIN), Department of Biotechnology, New Delhi, India as per India Biodiversity Portal)
Two wild ornamental plants from Arunachal Pradesh : mixed thread- 1 correct image. 7 posts by 5 authors.
Pl find the photograph of two beautiful wild ornamental plants from Arunachal Pradesh. Clerodendrum lasiocephalum is rare and probably restricted to North East India and Myanmar only.
Locality: Upper Siang district, Arunachal Pradesh.

Beautiful photos. I have seen Clerodendrum lasiocephalum in my native place in Kerala.
It is the favorite of butterflies.

Clerodendrum lasiocephalum is a syn. of Clerodendrum chinense (Osbeck) Mabb., both as per Catalogue of life and WCSP.
Your posted 1st image looks different from those at 
Clerodendrum chinense in efi site.

Also does not match with any other species so far in efi site as per comparative images at Clerodendrum

The 1st image has serrated leaves!

Another feature is yellow part in the middle of flower

Thanks a lot for pointing this out. My plant definitely looks different from C. chinense (Osbeck) Mabb.

IPNI has two citations for C. lasiocephalum:

Clerodendrum lasiocephalum C.B.Clarke, Fl. Brit. India [J. D. Hooker] 4(12): 594 (1885).
Clerodendrum lasiocephalum C.B.Clarke & C.E.C.Fisch., Bull. Misc. Inform. Kew 1940(7): 299, descr. ampl. (1941).

I shall try to go through the second reference and get back to you.

Thanks, … I could only get one reference of Clerodendrum lasiocephalum in WCSP, Catalogue of Life as well as in The Plant list.

Can it be Clerodendrum japonicum

Thanks, … But looks different from Clerodendrum japonicum

Ok, thanks

Plant identification : Sir, Please identify this cultivated flower, from a private houseDimapur (Nagaland)

Clerodendrum related sp. ??

Yes, it appears to be Clerodendrum species, though I went through Clerodendrum diversity in Northeast India

Thanks for sharing the pictures.

I think this plant is Clerodendrum lasiocephalum C.B. Clarke.
Lately, it was merged with Clerodenrum chinense (Osbeck.) Mabb., but I strongly believe this to be a distinct species.

Thanks, …, I tried this. But when found it to be syn. with C.chinensis with white flowers, I got confused.

Looks different than suggested ID !

Pl see my earlier posting from Arunachal Pradesh:

I could find three specimens of Clerodendrum lasiocephalum C.B.Clarke in GBIF.

Specimen from East Bengal seems to match with our plant (without opened corolla). While other two from Upper Burma look different as per
FBI gives the following description as per IBIS Flora:
Clarke leaves ovate acuminate dentate pubescent, panicle subcapitate, Calyx-segments 2/3 in. linear-subulate.
MISHMEE ; Griffith (Kew Distrib, n. 6055).
Branches pubescent upwards. Leaves opposite, 10 by 1/2 in., base cuneate or rounded, membranous, sparsely pubescent on both surfaces ; petiole 2 in. Panicle sessile, 2-3 in. diam., dense, depressed-globose, pubescent ; bracts linear. Calyx divided, nearly to the base; segments flaccid caudate, pubescent. Corolla not seen. Drupe 1/3 in. diam., red.
In view, you may be right that it was merged with Clerodendrum chinense (Osbeck.) Mabb., but I strongly believe this to be a distinct species.