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Sign: The Hebrew University of Jerusalem - Discovery Tree Walk - Eastern Cottonwood


Address:
National and University Library Building, Jerusalem, Israel
Category:
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Click here for a map that contains other items in the area

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On the sign:
33
צפצפה משולשת
Populus deltoides


תפוצה טבעית: מזרח ומרכז ארה"ב

חשבתם לרגע שיורד כאן שלג בתחילת האביב? כמובן שלא. זרעי הצפצפה הלבנים, עטופים בגושי פרווה לבנים, נשאים ברוח ונדמים לנו כשלג. שמו המדעי של העץ (deloides) נובע מעליו בעלי צורה משולשת כדמות האות היוונית דלתה.

[הפאה השנייה של הקוביה]
[The second face of the cube]
33
Eastern Cottonwood
Populus deltoides


Natural range: Eastern and Central USA

Does it snow here early each spring? No, it’s these female poplars’ tiny seeds, each embedded in a bit of white cottony fluff, sailing on the wind. The scientific name, from "delta" (triangle), refers to the leaf shape.

[הפאה השלישית של הקוביה]
[The third face of the cube]
[שאלה]
כיצד תשווה את גודלו וצורתו של עץ זה לעצים בשכנותו?

[a question]
By looking around, how would you compare the size and shape of this tree to other, nearby trees?

[הפאה הרביעית של הקוביה]
[The fourth face of the cube]
[התשובה לשאלה]
זה עץ בעל גודל וצורה "נורמליים" בין כמה עצים יוצאי דופן: עץ מס 30 - המין הגבוה בעולם Click for sign's details; עץ מס 31 - המין הענק בעולם Click for sign's details; עץ מס 32 - גזעו מפותל Click for sign's details; הדקלים הקרובים - אינם הולכים וצרים מהבסיס לצמרת ועליהם נמצאים בצמרת בלבד.

[The Answer to the question]
This tree is of "normal" size and shape, compared to several unusual neighbors. Tree 30, world’s tallest species Click for sign's details; tree 31, world’s most massive species Click for sign's details; tree 32, twisted trunk Click for sign's details; nearby palms, trunk doesn’t narrow from base to top, and leaves grow only on top.


Photography:
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Comments:
Tree No. 33 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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