Flora

Crepis nigricans Viv.

Family: Asteraceae

Flowering Time: May-Jul.

General Appearance

Crepis nigricans Viv. / Heterotypic Synonyms: Crepis senecioides ssp. nudiflora (Viv.) Alavi, it is an annual herb, general appearance like Crepis senecioides Delile. but dull-whitish setulose hispid. Basal leaves often early withering and wanting in flowering stage. Lower cauline leaves linear-lanceolate, amplexicaule, sinuate-toothed; teeth directed 01,11 wards; auricle toothed incised. Upper cauline leaves entire, linear, acute. Upper most cauline parts with bract-like leaves or without leaves. Peduncles and involucre dorsally long, black setulose and hispid. Outer involucral bracts 1̸2 as long as the inner, spreading. Corolla twice as long as the involucre, yellow. Cypsela e. 5 mm (include, beak): beakless or shortly beaked; pappus deciduous.

Life Form

Phytochoria

SA. The native range of this species is N. Africa.

Distribution in Libya

Benghazi Plain:

Reported from Benghazi by Kieth

Al-Jabal Al-Akhder:

Wadi Al-Agar 1999 Wadi (Valley) Stowah region 2007 From Nuqrat Said to Wadi Al-Zagzoog 2019

Notes

Wild in Libya.

Link of images: https://www.gbif.org/species/5403691

For more information

https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:200103-1, https://www.ipni.org/n/200103-1, http://www.worldfloraonline.org/taxon/wfo-0000070296, https://www.gbif.org/species/5403691, https://africanplantdatabase.ch/en/nomen/specie/137257/crepis-nigricans-viv

Bibliographic References

First: Encyclopedia Flora of Libyan:

Jafri, S. M. H. & El-Gadi, A. (1983) Flora of Libya, Asteraceae Vol. (107) Department of Botany, Al-Faateh Univ., Tripoli, Libya.

Second: Researches and PhD theses, master theses, Sorted by Newest:

Ali, A. M., Lashhab, S. R., Abu-Aweena, A. A.M. (2019) Classification of vegetation cover and its geographical distribution in the area extending between Al-Haniya and Wadi Zagzoog in the north to Lasastata and Bishtaya in the south. Al-Jabal Al-Akhdar eastern Libya. Issue (61) Journal of Science and Human Studies- Al-Marj-University of Benghazi-Libya (In Arabic). https://www.researchgate.net/profile/sd-lshhb, https://www.researchgate.net/publication/339238955_tsnyf_alghta_alnbaty_wtwzyh_aljghrafy_fy_almntqt_almmtdt_ma_byn_alhnyt_wwady_alzqzwq_shmala_hty_lstath_wbshtaya_jnwba_aljbl_alakhdr_shrq_lybya

Nawras, A. M. B. (2007) A study of the vegetation cover in the Wadi (Valley) Stowah region. Master Thesis. Botany Department-Faculty of Science-Garyounis University-Libya. (In Arabic).

Al-Hamadi R.I. (1999) Floristic and ecological study of wadi Al-Agar, Master Thesis, Botany Department, Faculty of Science, Botany Department-Faculty of Science-Garyounis University, Benghazi, Libya. (In Arabic).

PAMPANINI, R. (1931). Prodromo della Flora Cirenaica. – : 484 – under: Crepis radicata auct. https://bibdigital.rjb.csic.es/records/item/14218-prodromo-della-flora-cirenaica

PAMPANINI, R. (1921). Alcune piante critiche della Cirenaica. – Boll. Soc. Bot. Ital. 1921: 43-48 – under: Crepis nudiflora Viv.