Amaranthus blitum subsp. blitum var. blitum

Hassan, Walaa A., Al-Shaye, Najla A., Alghamdi, Salma, Korany, Shereen M. & Iamonico, Duilio, 2022, Taxonomic revision of the genus Amaranthus (Amaranthaceae) in Saudi Arabia, Phytotaxa 576 (2), pp. 135-157 : 139-140

2a. Amaranthus blitum subsp. blitum var. blitum

Iconography:— Beck (1909: Tab. 300).

Phenology:— Flowering time february to april (see also Al-Eisawi & Al-Ruzayza 2015).

Habitat and elevation:— Human-made habitat on sandy soils, 250–580 m a.s.l. (see also (Al-Eisawi & AlRuzayza 2015).

Chromosome number:— 2n = 34.

Alien status:— Archeophyte species native to to Mediterranean area and other parts of Europe, it can be considered as naturalized in Saudi Arabia (see also Chaudhary et al. 1981).

Occurrence in Saudi Arabia ( Fig. 2 ):— Hail ( El-Ghanim et al. 2010), Makkah ( Al-Eisawi & Al-Ruzayza 2015), Riyhad (our investigation).

Specimina visa selecta:— SAUDIA ARABIA, Riyadh, sandy soil, 623 m a.s.l., 11 February 2021, leg. Hassan et Alali, det. Iamonico (PNUH!); ibidem (RO!).

Figures

FIGURE 2. Map of Amaranthus blitum subsp. blitum var. blitum.