Spring 2023 https://www.globe.gov/c/message_boards/find_thread?p_l_id=18703103&threadId=104804145 2026-05-22T23:34:20Z 2026-05-22T23:34:20Z Snježana Marković-Zoraja https://www.globe.gov/c/message_boards/find_message?p_l_id=18703103&messageId=104804144 2023-04-20T20:23:48Z 2023-04-13T17:48:19Z

Hi from Dubovac Primary school, Karlovac, Croatia!<br />We continue observing two birches (Betula pendula L)<br /><br />Our observation on April 12th, current air temperature: 18C<br />Birch 1.<br />Leaf 1. 26 mm, leaf 2. 25 mm, leaf 3.  25 mm, leaf 4.  27 mm<br /><br /><img src="https://www.globe.gov/documents/18702582/0/Birch+1_13.4.jpg/f3aaff4f-31a0-18d7-f2fb-1843c1bfe420?t=1681408021169&amp;imagePreview=1" /><br /><br />Birch 2.<br />Leaf 1. 35 mm, leaf 2. 36 mm, leaf 3.  35 mm, leaf 4.  36 mm<br /><br /><img src="https://www.globe.gov/documents/18702582/0/Birch+2.+12.4.jpg/8b8c6377-e024-aada-4a13-2da557c7b124?t=1681408057325&amp;imagePreview=1" />

Snježana Marković-Zoraja 2023-04-13T17:48:19Z