Lithospermum incisum (Narrow-leaf Puccoon)
|Also known as:||Narrowleaf Stoneseed, Fringed Puccoon, Yellow Puccoon, Narrow-leaf Gromwell|
|Habitat:||sun; dry sandy or rocky soil; prairies, savanna, rock outcrops|
|Bloom season:||April - June|
|Plant height:||4 to 16 inches tall|
|Wetland Indicator Status:||none|
|MN county distribution (click map to enlarge):|
|National distribution (click map to enlarge):|
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Trumpet-shaped yellow flowers, ½ inch across, 5 lobes with ruffled or crinkled edges at the end of a slender, ¾ to 1¼ inch long tube. At the base of the tube are 5 narrowly triangular sepals, much shorter than the tube and densely covered in appressed hairs. Flowers are very short-stalked, crowded at the tip of the stem, with a small leafy bract at the base of the stalk. These showy flowers are mostly sterile. Later in the season, self-fertilizing, petal-less flowers (cleistogamous flowers) develop, which are mostly inconspicuous.
Leaves and stem:
Leaves are narrowly lance-linear, 1 to 3 inches long and not more than ¼ inch wide, pointed at the tip, toothless, stalkless, and have a prominent central vein. Surfaces are covered in short, appressed hairs, the lower surface more densely so and pale gray-green. Stems are mostly erect and unbranched, and covered in short appressed hairs.
Narrow-leaf Puccoon is easily recognized by the frilly, yellow flowers and narrow leaves.
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Photos by K. Chayka taken at Vermillion Falls, Dakota County. Photos courtesy Peter M. Dziuk taken in Dakota and Washington counties.
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