Flowering
- Jan1
- Feb2
- Mar3
- Apr4
- May5
- Jun6
- Jul7
- Aug8
- Sep9
- Oct10
- Nov11
- Dec12
Distribution
Geogr. District
- Negev Highlands (Rare)
- Southern Negev (V. Common)
- Arava Valley (Common)
- Edom (Common)
Vegetation Units
Description & Remarks
Of the three Acacia species growing in the desert areas of Israel, A. pachyceras is the most cold-resistant. It occurs in high plateaux of the Negev, Sinai, and Jordan. Differing from the two other species its fruit looks like a horn (the meaning of its Latin name) and not coiled. It was first described from SW Saudi Arabia and has a much wider distribution than what was known when discovered first in Israel.
Family
Additional Names
- Synonym (Scientific):
- Acacia gerrardii Benth. subsp. negevensis Zohary
- Hebrew with Vowels:
- שִׁטַּת הַנֶּגֶב
- Synonym (Scientific):
- Acacia gerrardii Benth var. nejdensis Caudhary
- Synonym (Scientific):
- Acacia negevensis (Zohary) Zohary
תכונות וזיהוי
-
נוף העץ הבוגר "פרוע". צולם בדרום הנגב, נחל ציחור
-
צופן חוץ-פרחי (אקסטרה-פלורלי) על ציר העלה המורכב, מתחת לזוג הסעיפים הראשון. העלה מלווה בזוג קוצי לוואי ישרים
-
הפרי כפוף כחרוב או בננה ואינו סלול.
-
צופן יחיד בולט על ציר העלה מתחת לזוג הסעיפים התחתון.
- Life form (Raunkiaer):
- tree
- Spinescence:
- stipules
- Succulence:
- non-succulent
- Summer Shedding:
- perennating
- Petal or tepal color:
- yellow
- Sexuality and Reproductive Morphology:
- Flowers hermaphrodite only
- Sporangia or Seed Homogeneity:
- Homogeneous seeds-fruits
- Flowering Time:
- August, October, December, July, June, November, September
- Leaf arrangement:
- alternate (one leaf per node)
- Leaf Type:
- compound, pinnate or bipinnate, bipinnate or more
- Leaf or leaflet margin:
- smooth
- Stipule:
- present
- Habitat:
- Desert, Thermophilous plants
- Chorotype:
- Sudanian-African
- Drought Resistence:
- Salt Resistance:
- glycophyte
- Synanthrop:
- obligate natural
Taxonomy
- Superdivision:
- Spermatophyta
- Division:
- Angiospermae
- Class:
- Dicotyledoneae
- Family:
- Mimosaceae
- Genus:
- Acacia
Acacia pachyceras in the Botanic Library
Articles
- הצומח בסביבת אילת
- עצים בנגב ובמדבר יהודה
- צמחי-בר לגינתנו - עצים ושיחים
- Man and the natural environment
- Plant species diversity and ecological districts of the Sinai Desert
Books
- קוצי לוואי של שיטים, חלקם שמורים בכנסיות באיטליה
מתוך: בעקבות צמחים - Biq’at ‘Uvda and its Surrounding Hills (continued)
מתוך: Vegetation of Israel and Neighboring Countries - Desert Vegetation
מתוך: Vegetation of Israel and Neighboring Countries - Nahal Hayon; Shayarot Ridge
מתוך: Vegetation of Israel and Neighboring Countries - Negev Vegetation (Hebrew)
- Oases with Sudanian Trees; Desert Savannoid Vegetation
מתוך: Vegetation of Israel and Neighboring Countries - Stipular Thorns of Acacia
מתוך: Plant Stories