Author: آمنه غلامی 
Alyssum lanigerum DC.
Masoumeh Izadpanah, Amene Gholami and Mohammad Mahmoodi
Natural Resources Gene Bank, Research Institute of Forests and Rangelands, Agricultural Research, Education and Extension Organization, Tehran, Iran.
Uploaded at July 2024
Scientific editor: Parvin Salehi Shanjani
Seed Storage
The storage behavior of this species is orthodox (desiccation-tolerant seeds), dry to 15 to 20% eRH, and store at -20°C.
Germination requirements
The seeds of this species are not dormant. Sterilize seeds before placing them on wet germination paper. Place seeds for two weeks at 4 ºC to germinate uniformly. Then germinate under an alternating temperature regime of 15/20 ºC (the higher temperature for 16 hours in light and the lower one for eight hours in dark).
Morphology
Fruit type: Silicle
Fruit shape: Elliptic-obovoid, compressed, beaked, pubescent, 2-seeded
Fruit size: Length 2.5 to 4 mm, width 1.5 to 2.2 mm
Seed shape: Elliptic, apex rounded, tip of the radicle narrowed, hilum with a slight callus, radicle furrow distinct, wingless or with thin wing. Surface glabrous, indistinct reticulate, brown
Seed size: Length 1.61 to 1.89 mm, width 0.86 to 1.02 mm in an accession from Aghbolagh village, Zanjan, with 1000 seeds weight 0.22 g, which was collected and identified in 2016 by Mohammad Mahmoodi, and is stored in the Natural Resources Gene Bank of Iran with the accession number 46158.
Average 1000 seed weight: 0.2 to 0.7 g
Biological features
Life form: Subshrub, perennial, woody at base, pubescent. Stems numerous, erect, height 10 to 20 cm, green-silver
Inflorescence, flower type, and pollination mechanism: Inflorescence corymb, flowers actinomorphic, sepals lanceolate, margin membranous, short-lived, petals spatulate, obtuse or emarginated at base, yellow. Flowers hermaphrodite and cross-pollinating. Pollination is carried out by insects and wind.
Time of flowering: Spring
Time of seed ripening: Late spring to early summer
Seed dispersal methods: Wind and seed weight
Geographical distribution: Endemic to Iran. Typus from Kermanshah
Distribution in Iran: North, Northwest, West, Center, Northeast, South. Mostly in provinces Mazandaran, Gilan, Azerbaijan, Hamadan, Lorestan, Isfahan, Bakhtiari, Kohgiluyeh and Boyer-Ahmad, Khorasan, Semnan and Tehran
Taxonomy
Family: Brassicaceae
Genus: Alyssum
Species: A. lanigerum
Persian name: –
References and Links
Assadi, M. Sajedi, S. Fakhr Ranjberi, H. Mirzadeh Vaghefi, S. Moazzeni, H. Khodashenas, M. Khosravi, A. R. Hatami, A. Mehrnia, M. Kaffash, Sh. Heidarnia, N. Sheidai, M. Heidari Rikan, M. Kavousi, K. Sonboli, A. Veiskarami, Gh. And Aminian, F. 2017. Flora of Iran, Brassicaceae, No.143. Research Institute of Forests and Rangelands Press, Tehran, Iran, 954 pp.
Black, M. and Bewley, J.D. 2000. Seed technology and its biological basis. Sheffield Academic Press, 419 pp.
Bojňanský, V. and Fargašová, A. 2007. Atlas of seeds and fruits of central and East-European flora: the Carpathian Mountains region. Springer, Dordrecht, The Netherlands, 1046 pp.
Ghahraman, A. Flore of Iran. Research Institute of Forests and Rangelands with University of Tehran Publication. https://floraofiran.net/index.php.
Mozaffarian, V.A. 1998. Dictionary of Iranian plants names. Farhange Moaser Publisher, Tehran, 671 pp.
Mozaffarian, V.A. 2012. A Pictorial dictionary of botany. Farhange Moaser Publisher, Tehran, 1088 pp.
Sharma, O.P. 2009. Plant taxonomy 2E. Tata McGraw-Hill Education, New Delhi, 563 pp.
