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C. DESCRIPTION 



1. GENERAL NONTECHNICAL DESCRIPTION: Aqoseris sp. 

 nov. is a medium-sized perennial herb from a 

 taproot. The crown may be simple or branched. 

 Leaves all arise from the base, and 1-3 leafless 

 flowering stems are produced. Leaves are smooth, 

 thin, and longer than wide, and are 6-20 cm long. 

 The acute leaf tips have a sharp, slender purple 

 tip. Each flowering stem bears a single dandelion- 

 like head of pink flowers. Below the heads are 

 green bracts with purple mottling and woolly bases. 



2. TECHNICAL DESCRIPTION: Perennial herb from a 

 slender taproot; caudex simple or branched, 

 producing a basal rosette and 1-3 scapes. Leaves 

 oblanceolate, 6-20 cm long, 0.7-2.2 cm wide, entire 

 to toothed distally, glabrous, apex acute, with a 

 purple mucro, base narrowed to a long petiole; 

 petiole narrowly to broadly winged, sheathing at 

 the base, margins villous with spreading, 

 multicellular hairs; scape 6-49 cm high, villous at 

 the base, becoming tomentose beneath the solitary 

 head; involucre campanulate, subequal, becoming 

 imbricate in fruit; phyllaries lanceolate, in 3-4 

 series, inner acute, outer may be blunter and 

 broader, light green with a purple medial stripe 

 and purple mottling over all, outer ones densely 

 villous at base; flowers all ligulate, 50-70 per 

 head, perfect, light pink at emergence, drying to 

 deep pink; achenes terete, gradually tapering to a 

 slender beak; pappus double, of numerous capillary 

 bristles (adapted from Moseley et al . , in 

 revision) . 



3. LOCAL FIELD CHARACTERS: Aqoseris sp. nov. is 

 similar in habit to Aqoseris aurantiaca, a common 

 species that is widespread in mountain meadows. 

 The flowers of A. aurantiaca emerge burnt orange 

 and often dry purplish in color. The flowers of 

 Aqoseris sp. nov. are pink at emergence. The two 

 species are also distinguishable on the basis of 

 habitat; A. aurantiaca occurs in moist to dry, 

 well-drained meadows, while Aqoseris sp. nov. is 

 found in wet meadows where the soil is saturated 

 through the growing season (Moseley et al . , in 

 revision) . 



D. GEOGRAPHICAL DISTRIBUTION 



1. RANGE: Aqoseris sp. nov. is known from Lemhi 



County, Idaho, and southwestern and southcentral 

 Montana. 



