Flowering

  • Jan1
  • Feb2
  • Mar3
  • Apr4
  • May5
  • Jun6
  • Jul7
  • Aug8
  • Sep9
  • Oct10
  • Nov11
  • Dec12
Not in Bloom

Distribution

עוקץ-עקרב ים-מלחי - מפת תפוצה

Geogr. District

Vegetation Units

Description & Remarks

A greyish subshrub, woody at its base, endemic to the Dead Sea Valley, grows in slopes and gravelly washes.
The leaves are small, oval, covered with short dense and depressed to the surface hairs that give a prominent silver-grey look to the plant.
The flowers (about 4 mm across) are white with yellow stain around the throat, and have triangular-pointed petal lobes which are bended and pointed towards the center of the corolla limb. The corolla tube is clearly exerted from the calyx and is hairy outside and inside (the corolla limb is sparsely hairy or smooth). By these it differs from its related vicarious species H. rotundifolium that is widespread elsewhere in the country, its corolla tube is included in the calyx and it has no hairs in the tube inside.
H. bovei is generally similar to H. maris-mortui, except that it is annual, grows in roadsides and on heavy and agricultural soils, its petal lobes point outward.
H. arbainense and H. bacciferum grow in similar habitats in the Dead Sea Valley. The first has big completely yellow flowers that become white, the second has small flowers with rounded petal lobes. Both are dark green and not greyish, and covered with dense erected hairs.

Dar Ben-Natan and Ori Fragman-Sapir, 2019
Translation – Sara Deutch

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Family

Additional Names

Hebrew with Vowels:
עֹקֶץ-עַקְרַב יַם-הַמֶּלַח

תכונות וזיהוי

  • הכותרת שעירה בצדה הפנימי, אורכה 10-7 מ

    הכותרת שעירה בצדה הפנימי, אורכה 10-7 מ"מ. הגביע קצר במידה ניכרת מצינור הכותרת.

  • בן-שיח אפור, מכוסה שערות הדוקות, גדל בעיקר בבקעת ים המלח.

    בן-שיח אפור, מכוסה שערות הדוקות, גדל בעיקר בבקעת ים המלח.

Life form (Raunkiaer):
chamaephyte
Spinescence:
absent
Succulence:
non-succulent
Summer Shedding:
perennating
Petal or tepal color:
white
Sexuality and Reproductive Morphology:
Flowers hermaphrodite only
Sporangia or Seed Homogeneity:
Homogeneous seeds-fruits
Flowering Time:
April, May, March, February
Leaf arrangement:
alternate (one leaf per node)
Leaf Type:
entire
Leaf or leaflet margin:
smooth
Stipule:
absent
Habitat:
Desert, Thermophilous plants
Chorotype:
Saharo-Arabian
Drought Resistence:
Salt Resistance:
glycophyte
Synanthrop:
mostly natural, also synanthropic

Taxonomy

Superdivision:
Spermatophyta
Division:
Angiospermae
Class:
Dicotyledoneae
Family:
Boraginaceae
Genus:
Heliotropium