Image of Mojave thistle

Description:

Leaf: +- densely tomentose, especially abaxially; proximal 1.5--6 dm, spiny-petioled, elliptic to oblanceolate, toothed to deeply lobed, lobes generally rigidly spreading, simple or with 1--2 pairs of coarse teeth or 2 lobes, main spines 3--20 mm; middle and distal smaller, narrower, conspicuously decurrent as spiny wings, distal-most much reduced, often long-acuminate, generally very spiny, spines 4--30 mm.Leaf: +- densely tomentose, especially abaxially; proximal 1.5--6 dm, spiny-petioled, elliptic to oblanceolate, toothed to deeply lobed, lobes generally rigidly spreading, simple or with 1--2 pairs of coarse teeth or 2 lobes, main spines 3--20 mm; middle and distal smaller, narrower, conspicuously decurrent as spiny wings, distal-most much reduced, often long-acuminate, generally very spiny, spines 4--30 mm.