At maturity perhaps trunk of *Bombax insigne* may achieve a flaky / corky bark (needs validation) almost devoid of spines. *Bombax ceiba*, I think has relatively, the maximum density of spines among matured trees. However, with aging over 100s of years, as the girth of trunk increases, the spines seem to loose their size ... those on the branches at end of canopy continue to have good density of spines. Hopefully, someone has better explanations. Posting some pictures for comparison / illustration ... also added pictures of *Bombax insigne*, a tough competitor of *B. ceiba.*
[image: Lalbagh Botanical Gardens] <https://www.google.com/url?q=https%3A%2F%2Fwww.flickr.com%2Fphotos%2Fdinesh_valke%2F32334543893%2F&sa=D&sntz=1&usg=AFQjCNGbki6qJxw51UfSPcvJ38TpLjCkjQ> Lalbagh Botanical Gardens Bangalore *Date*: 19 FEB 2017 ... *Altitude*: ~ 906 m (2972 ft) asl ------------------------------ *Bombax ceiba* L. ... (family: Malvaceae) ... native [image: Bombax ceiba L.] <https://www.google.com/url?q=https%3A%2F%2Fwww.flickr.com%2Fphotos%2Fdinesh_valke%2F32875929080%2F&sa=D&sntz=1&usg=AFQjCNF7zZGPr16NiK17C0tsxbQcdSerQA> < [image: Bombax ceiba L.] <https://www.google.com/url?q=https%3A%2F%2Fwww.flickr.com%2Fphotos%2Fdinesh_valke%2F32999151631%2F&sa=D&sntz=1&usg=AFQjCNErBIPm3bz2q40HWVXJF2LbuPgQVA> < [image: Bombax ceiba L.] <https://www.google.com/url?q=https%3A%2F%2Fwww.flickr.com%2Fphotos%2Fdinesh_valke%2F32999141291%2F&sa=D&sntz=1&usg=AFQjCNENmjoCclzQOvye3B7mZ-I_EnC7kw> < [image: Bombax ceiba L.] <https://www.google.com/url?q=https%3A%2F%2Fwww.flickr.com%2Fphotos%2Fdinesh_valke%2F32743406940%2F&sa=D&sntz=1&usg=AFQjCNERT3MOWPdccbeFZlF12LV9CtPSmw> < [image: Bombax ceiba L.] <https://www.google.com/url?q=https%3A%2F%2Fwww.flickr.com%2Fphotos%2Fdinesh_valke%2F33084134716%2F&sa=D&sntz=1&usg=AFQjCNFbDiakrCVXjxa-bNXRW0FyUThBaQ> ... in vicinity of Thane *Date*: various times ... *Altitude*: 50 - 200 m ------------------------------ *Bombax ceiba* L. ... (family: Malvaceae) [image: Similikonta (in Oriya)] <https://www.google.com/url?q=https%3A%2F%2Fwww.flickr.com%2Fphotos%2Fdinesh_valke%2F3272411320%2F&sa=D&sntz=1&usg=AFQjCNEtO-mIwRTtFmDhnAEgNB9OLzYHlQ> [image: Shimalo (Gujarati: શીમળો)] <https://www.google.com/url?q=https%3A%2F%2Fwww.flickr.com%2Fphotos%2Fdinesh_valke%2F3272409614%2F&sa=D&sntz=1&usg=AFQjCNF3qkQGa0TRODa2ZwO21eZg40v69A> [image: Saanvari (Marathi: सांवरी)] <https://www.google.com/url?q=https%3A%2F%2Fwww.flickr.com%2Fphotos%2Fdinesh_valke%2F3185187250%2F&sa=D&sntz=1&usg=AFQjCNE4g6fYAStChKaoUnb3QKYYf-ISCw> ... in urban Thane *Date*: various times ... *Altitude*: 50m ------------------------------ *Ceiba pentandra* (L.) Gaertn. ... (family: Malvaceae) [image: Thorn on Ceiba] <https://www.google.com/url?q=https%3A%2F%2Fwww.flickr.com%2Fphotos%2Fdinesh_valke%2F347916450%2F&sa=D&sntz=1&usg=AFQjCNEKWi1n1de78GTPiX9OAMqSgF54Cg> [image: Trunk of very young Kapok] <https://www.google.com/url?q=https%3A%2F%2Fwww.flickr.com%2Fphotos%2Fdinesh_valke%2F433483505%2F&sa=D&sntz=1&usg=AFQjCNFVi9iRaIKvx8soBGq6tCJ1ksLcDg> [image: Ceiba pentandra] <https://www.google.com/url?q=https%3A%2F%2Fwww.flickr.com%2Fphotos%2Fdinesh_valke%2F433460027%2F&sa=D&sntz=1&usg=AFQjCNFaEysVHKibs5oZg9vP5DeSpoV02g> ... in vicinity of Thane *Date*: various times ... *Altitude*: 50 - 200 m ------------------------------ *Bombax insigne* Wall. ... (family: Malvaceae) [image: Dev Savar (Marathi: देव सावर)] <https://www.google.com/url?q=https%3A%2F%2Fwww.flickr.com%2Fphotos%2Fdinesh_valke%2F2237306256%2F&sa=D&sntz=1&usg=AFQjCNGjqlWjhbSzLZgnxyMIr68Xlmzl8A> [image: Bombax insigne] <https://www.google.com/url?q=https%3A%2F%2Fwww.flickr.com%2Fphotos%2Fdinesh_valke%2F4181322292%2F&sa=D&sntz=1&usg=AFQjCNGls_Ks5-TIi4TKCf0VRAijTPy83A> [image: Bombax insigne] <https://www.google.com/url?q=https%3A%2F%2Fwww.flickr.com%2Fphotos%2Fdinesh_valke%2F2237291338%2F&sa=D&sntz=1&usg=AFQjCNF5NgR4Ymox2Guz0kZ5Bu2Pa2qcfw> Regards. Dinesh On Wed, Jun 6, 2018 at 11:14 AM, Sharmila Punde < [email protected]> wrote: > Thanks Dinesh ji, Mahadeswara ji, Garg ji. > Yes, saw carefully today again at trunk. Age might be 14-15 years. No > spines at human reachable height. But saw few very small > spines at the height out of human reach. > > Will it be same for Bombax Ceiba? Will Bombax Ceiba as well be having > plain trunk at maturity? Wanted to plant in one premise, but because > of spiny trunk avoided for long time. > > Thanks > Sharmila > > > > On Wed, Jun 6, 2018 at 8:39 AM, Dinesh Valke <[email protected]> > wrote: > >> *Ceiba pentandra*. >> It is planted along roads in many places. I see the tree has less spines >> compared to its other cousins... as the tree matures, the trunk has almost >> no spines. >> Regards. >> Dinesh >> >> On Wed, Jun 6, 2018 at 8:32 AM, Mahadeswara <[email protected]> wrote: >> >>> *Ceiba pentandra .* >>> >>> On Tuesday, June 5, 2018 at 9:35:22 PM UTC+5:30, sharmilafloraindia >>> wrote: >>>> >>>> Thanks Garg ji! >>>> Seems fruit, flowers, leaves matches. But tree i clicked does not >>>> have spines. It has plain trunk. So should it make difference in species? >>>> >>>> >>>> On Tue, Jun 5, 2018 at 9:12 PM, J.M. Garg <[email protected]> wrote: >>>> >>>>> Pl. check https://sites.google.com/site/efloraofindia/species/m- >>>>> --z/m/malvaceae/ceiba/ceiba-pentandra >>>>> >>>>> On Tue 5 Jun, 2018, 8:16 PM Sharmila Punde, <[email protected]> >>>>> wrote: >>>>> >>>>>> Dear All, >>>>>> Please help identify yellow flower tree. >>>>>> Flowers, buds, leaves and branches are attached. >>>>>> Thanks >>>>>> Sharmila >>>>>> >>>>>> >>>>>> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> >>>>>> Virus-free. >>>>>> www.avg.com >>>>>> <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> >>>>>> <#m_8408662620484533511_m_5398084933486010500_m_2471658157359036899_CAA4ix9Ke76VKGyxUfTvUJvHVak3G-xYfunrMhw=Rg4ecXWmpUw@mail.gmail.com_m_-8369470342877344289_m_-6776917543979231994_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> >>>>>> >>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "efloraofindia" group. >>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>> send an email to [email protected]. >>>>>> To post to this group, send email to [email protected]. >>>>>> Visit this group at https://groups.google.com/group/indiantreepix. >>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>> >>>>> >>>> -- >>> You received this message because you are subscribed to the Google >>> Groups "efloraofindia" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To post to this group, send email to [email protected]. >>> Visit this group at https://groups.google.com/group/indiantreepix. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> > -- You received this message because you are subscribed to the Google Groups "efloraofindia" group. 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