HARALD RIEDL and YASIN J. NASIR

Thalictrum isopyroides Illustration Credit: S. Hameed

Perennial, 15-50 cm high, glabrous, Stem simple, rarely branched, smooth or indistinctly striate. Leaves usually crowded near the base of the stem, petiolate or sub-sessile, blade 3-4-pinnate, triangular in outline, leaflets glaucous, small, ovate-lanceolate, divided to or almost to the base into 2-3 lobules, lobules 2-8 x 0.7-3 (-3.5) mm, sessile, sometimes indistinctly serrulate, obtuse or subacute. inflorescence lax, much branched, few-flowered, partly leafy. Bracts linear, very small. Pedicels slender, 5-60 mm, almost horizontal, elongating considerably in fruit. Flowers greenish, small. Sepals 4, 1-3 (-4) x 0.5-1.5 mm, elliptic, acute or subobtuse. Stamens 5-8, brownish-green, filaments 2-3 mm, filiform, anthers linear, mucronulate. Carpels (2-) 3-5 (-6) sessile, at maturity oblong-ovoid, 3.5-5 x 1.5 mm, with 3 indistinct ribs on each side. Style slightly curved, 0.75 mm long, inserted obliquely.

Fl. Per.: April-May.

Type: In rupestribus montium, Urmuchaika prope Buchtarminsk, Meyer (LE).

Baluchistan: D-4 Quetta, C. 1800 m, J. Lomond 178 (E, RAW), id., V. Parkash 16417 (RAW).

Distribution: E. Mediterranean, N.E. Anatolia, Caucasus, Iran, Altai, mountains of Turkmenistan, Pamir-Alai, Tien-Shan, Tarbagatai, Afghanistan, Pakistan.

Found in dry hills up to 2000 m.