Aster subulatus, Symphyotrichum subulatum, Annual Saltmarsh Aster,
Hebrew: אסתר מרצעני

Scientific name:  Aster subulatus Michx.
Synonym name:  Symphyotrichum subulatum (Michx.) G.L. Nesom
Common name:  Annual Saltmarsh Aster
Hebrew name:  אסתר מרצעני
Family:  Compositae / Asteraceae, מורכבים

פרחים וצמחי בר בארץ ישראל, דיווחי פריחה

Life form:  Annual
Stems:  30–180 cm high, erect, almost glabrous; stems branched above, rigid, smooth, reddish
Leaves:  Alternate, entire, smooth
Flowers:  White daisies with 5mm long ‘petals’ (ray florets)
Fruits / pods:  Achenes 1.5–2 mm long, narrow, 4–5 ribbed, sparsely hairy; pappus whitish
Flowering Period:  April, May, June, July, August, September, October, November
Habitat:  Disturbed habitats
Distribution:  Mediterranean Woodlands and Shrublands, Semi-steppe shrublands, Shrub-steppes, Deserts and extreme deserts
Chorotype:  American
Summer shedding:  Ephemeral

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Derivation of the botanical name:
Aster, ἀστήρ (astḗr), a star, referring to the shape of the flower head.
subulatus, subula, a fine sharp point, lit. an awl; awl-shaped.
Symphyotrichum , from Greek symphysis, "to grow together", and trichos or trichinos, "hair" in possible reference to the flower anthers.
The Hebrew name: אסתר, aster, transliteration from the scientific name.
  • The standard author abbreviation Michx. is used to indicate André Michaux (1746 – 1803), a French botanist and explorer.