Acaulescent perennial. Leaves suberect to spreading, blades ovate to elliptic-oblong, (25-)40-100 x 20-40(-55) mm, obtuse, base cordate to truncate, margins subentire or subspinulate to crenate-toothed, revolute, usually strongly discolorous, upper surface dull or shiny green, glabrous to thinly whitish felted, especially along midrib, under surface densely whitish-greyish felted; petiole 25-60(-155) mm long, glabrous or whitish-greyish felted, or with patches of whitish-greyish wool, densely silky at base. Scapes bracteate, 180-540(-700) mm, glabrous to whitish woolly but often with distinct patches of whitish wool, bracts 9 to 20, subulate to linear, 3-15 mm long. Capitula 20-70 mm diam. Involucre campanulate; bracts subseriate, 3-or 4-subseriate, inner bracts longest, 9-15 x 1-2 mm, glabrous to thinly felted, acute. Ray florets 12 to 40, white with purple to reddish under surface, perianth tube 4-7 mm long, lower limb 16-20 mm long, upper limb 2-4 mm long. Disc florets pale in colour, tube 4-9 mm long, limbs 2.0-3.5 mm long; anther appendages pale yellow. Cypselas not seen. Pappus bristles 8-10 mm long, whitish to whitish tawny.
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Like G. tomentosa but scapes to 60 cm, thinly cobwebby, and leaves softy white-felted below.