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Published In: The Genera of North American Plants 2: 127. 1818. (14 Jul 1818) (Gen. N. Amer. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 8/11/2017)
Acceptance : Accepted
Project Data     (Last Modified On 7/9/2009)
Status: Native

 

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3. Krigia dandelion (L.) Nutt. (potato dandelion)

Pl. 257 h, i; Map 1074

Plants perennial, mostly with fibrous roots and slender, sometimes nearly vertical rhizomes producing 1 or a few globose to ovoid, potato-like tubers 5–15 mm in diameter. Stems 1 to few, 10–50 cm long, erect or ascending, unbranched, glabrous or sparsely to moderately pubescent with spreading, gland-tipped hairs, especially toward the tip. Leaves basal, sessile or with a short to less commonly long, winged petiole. Leaf blades 2–25 cm long, linear to narrowly lanceolate or narrowly oblanceolate, entire, wavy, toothed, or shallowly to deeply pinnately lobed, the teeth or lobes spreading, broadly triangular and pointed or occasionally oblong and rounded, the leaf tip rounded to more commonly sharply pointed, the surfaces glabrous or rarely sparsely pubescent with short, appressed hairs, usually glaucous. Involucral bracts (12–)14–16, 10–15 mm long, narrowly lanceolate to narrowly oblong-lanceolate, flat (not keeled), glabrous, withering and becoming reflexed with age. Ligulate florets 25–35. Corollas 12–25 mm long, lemon yellow to orangish yellow, those of the outer florets sometimes purplish-tinged on the outer surface. Pappus of 25–45 bristles and 10–15 short, inconspicuous scales, the bristles 5–8 mm long, white or nearly so to very light tan, the scales 0.5–1.0 mm long, irregularly lanceolate to oblanceolate (rarely broader), transparent but sometimes with a darker central line or stripe. Fruits 2.2–2.7 mm long, more or less cylindrical (slightly expanded at the tip, slightly tapered at the base), more or less circular in cross-section, with 12–15 blunt, broad ribs, these microscopically roughened or barbed, reddish brown to dark brown. 2n=60. April–June.

Scattered, mostly south of the Missouri River (eastern U.S. west to Iowa and Texas). Upland prairies, glades, ledges and tops of bluffs, openings of mesic to dry upland forests, margins of sinkhole ponds, and banks of streams and rivers; also rarely disturbed areas.

 


 

 
 
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