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Sign: The Hebrew University of Jerusalem - Discovery Tree Walk - Carob


Address:
Givat Ram, Jerusalem, Israel
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Click here for a map that contains other items in the area

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On the sign:
9
חרוב מצוי
Ceratonia siliqua


תפוצה טבעית: ערב הסעודית וסומאליה

צורת החרב של התרמילים נושאי הזרעים של עץ נקבי זה נתנו לו את שמו. עץ חרוב זכרי חסר תרמילים נפגוש במקום אחר בקמפוס. עלי החרוב עבים, מצופים בשכבת שעווה המונעת אידוי מים ומאפשרת את גידולו אף באזורים צחיחים.

[הפאה השנייה של הקוביה]
[The second face of the cube]
9
Carob
Ceratonia siliqua


Natural range: Saudi Arabia and Somalia

This female tree’s sword-shaped seed pods gave the name "carob" (cherev-sword in Hebrew). Males, lacking seed pods, grow elsewhere on campus. Adapted to arid climates, its thick leaves store water, and their waxy coating limits evaporation.

[הפאה השלישית של הקוביה]
[The third face of the cube]
[שאלה]
החרוב שייך למשפחת הקטניות (כמו גם אפונה, שעועית וכן עצים מס. 12 (צ"ל 21) Click for sign's details ו-22 בסיור העצים) שבשורשיהם מתרחש תהליך שבלעדיו לא היית חי. האם אתה יודע מהו?

[a question]
In all legumes (including carobs, peas, beans, and trees 21 Click for sign's details and 22), the roots carry out a process without which you could not live. Do you know what it is?

[הפאה הרביעית של הקוביה]
[The fourth face of the cube]
[התשובה לשאלה]
בשורשי קטניות מצויים חיידקים הקושרים חנקן לתרכובות כימיות אחרות. רק חנקן קשור כך יכול להקלט ולספק צרכי הצמחים. האדם ובע"ח יכולים לקבל את החנקן לבניית חלבונים חיוניים לחיים, רק מצמחים.

[The Answer to the question]
Legume roots house special bạcteria that bind soil nitrogen to other chemical compounds. Plants can absorb and use only such bound nitrogen. And only from plants can animals and people obtain the nitrogen needed for building the body’s essential proteins.
Photography:
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Comments:
Tree No. 9 in the Mac and Tibby Podel Discovery Tree Walk, located on the Edmond J. Safra Campus of the Hebrew University of Givat Ram.

Each tree is accompanied by a cube with details on the tree. On the top of which is the text:
Mac and Tibby Podel Discovery Tree Walk Click for a larger image

In the next picture taken from one of the trees on the route, you can see the way the sign is placed (a cube standing on a metal pillar) and the tree to which it points Click for a larger image

The tree to which the cube points was photographed that day Click for a larger image

The rest of the cube faces:
The second face Click for a larger image
The third face Click for a larger image
The fourth face Click for a larger image



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