Tanacetum umbelliferum Boiss., Diagn. Pl. Or. Nov. Ser. 2, 3: 30. 1856; Pyrethrum umbelliferum (Boiss.) Boiss., Fl. Or. 3: 352. 1875; Tanacetum trichophyllum Regel & Schmalh. in Acta Horti Petrop. 5: 255. 1877; Chrysanthemum trichophyllum (Regel & Schmalh.) O. Kuntze in Acta Horti Petrop. 10: 202. 1887; C. umbelliferum (Boiss.) O. Hoffm. in Vid. Meddel. Dansk Naturf. Foren. Kbhvn. 1909: 149. 1909; C. floccosum Kitam. in Acta Phytotax. Geobot. 17: 34. 1957; Fl. Afghan. 399. fig. 96. 1960; Lepidolophis umbellifera (Boiss.) Poljakov in Fl. Turkm. 7: 105. 1960.

Upright, up to 50 (-80) cm tall, biennial or perennial herb , with single or 2-4 shoots from vertical, 3.5 – 6 cm thick, densely whitish lanate vertical rootstock. Basal leaves numerous at anthesis, on 1.5 – 2 cm long petioles, linear-oblong, 5 – 2 x 0.8 – 3 cm, occasionally almost glabrous, (2-) 3-pinnatisect into subulate, 0.5 – 3 x 0.1 – 0.3 mm, stiffly mucronulate ultimate segments; lower and mid-stem leaves sessile, basally amplexicaule, gradually smaller upwards, with c. 8 mm long ultimate lobules; uppermost leaves reduced, bi- or unipinnatifid; topmost filiform, 8 – 10 mm long, with long whitish hairs. Capitula on 3 – 20 mm long, ± glabrous peduncles, ± hemispherical, 6 – 9 mm across, in dense, 3 – 10 cm wide compound corymbs. Phyllaries imbricate, outermost much small, oblong, carinate, dorsally green, with ± entire, broadly hyaline scarious margins; inner linear-lanceolate, hyaline scarious and lacerate on margins. Receptacle obtusely conical, glabrous. Florets yellow, 2 – 2.5 mm long, with glandulose, campanulate 5-toothed corolla tube, teeth triangular, spreading. Cypselas linear, ± terete, 1.8 – 2.5 mm long, dorsally glandulose.

Holotype: Between Quetta and Kandhar, near Dair Haj, Griffith 554 (G-BOIS) Isotype (K!).

Distribution: Central Asia, Iran, Afghanistan and Pakistan.

Known from our area from type material only but its occurrence in northwestern poorly explored mountainous border localities of Balochistan (Zhob district) with Afghanistan is much more probable in smaller and isolated populations.