Alnus subcordata

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Alnus subcordata
Alnus subcordata 7067.JPG
In Azerbaijan
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fagales
Family: Betulaceae
Genus: Alnus
Subgenus: Alnus subg. Alnus
Species:
A. subcordata
Binomial name
Alnus subcordata

Alnus subcordata, the Caucasian alder,[1] is a species in the family Betulaceae, native to Hyrcanian forests of Iran and the Caucasus.[2] It is closely related to the Italian alder (A. cordata) and Alnus orientalis.[1]

It is a deciduous tree growing to 15–25 m tall, with similar glossy green cordate leaves 5–15 cm long. The flowers are catkins, the male catkins very slender, 8–15 cm long, the female catkins small, maturing into a woody cone-like fruit 2–3 cm long containing numerous small winged seeds.[citation needed]

Two varieties have been recorded:[3]

  • Alnus subcordata var. subcordata C.A. Mey.
  • Alnus subcordata var. villosa (Regel) H.J.P.Winkl

Uses[edit]

It is a commercially valuable species with "widespread application in timber and furniture industries".[2] It has a calorific value of about 4.6 cal/g.[citation needed]

References[edit]

  1. ^ a b Colagar, A. H., Yousefzadeh, H., Shayanmehr, F., Jalali, S. G., Zare, H., & Tippery, N. P. (2016). Molecular taxonomy of Hyrcanian Alnus using nuclear ribosomal ITS and chloroplast trnH-psbA DNA barcode markers. Systematics and biodiversity, 14(1), 88-101. http://www.tandfonline.com/doi/abs/10.1080/14772000.2015.1102172
  2. ^ a b Rahimi, D., Kartoolinejad, D., Nourmohammadi, K., & Naghdi, R. (2016). Increasing drought resistance of Alnus subcordata CA Mey. seeds using a nano priming technique with multi-walled carbon nanotubes. Journal of Forest Science, 62(6), 269-278. https://www.agriculturejournals.cz/publicFiles/15_2016-JFS.pdf
  3. ^ Shayanmehr, F., JalaliI, S., Hosseinzadeh Colagar, A., Yousefzadeh, H., & Zare, H. (2015). Pollen morphology of the genus Alnus mill. In hyrcanian forests, north of iran. Applied ecology and environmental research, 13(3), 833-847. https://doi.org/10.15666/aeer/1303_833847