Kansas Wildflowers and Grasses

PRAIRIE ROSE

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Rosa setigera Michx.

Woodson County, Kansas

Perennial shrub

Height: Climbing, sprawling, or trailing

Family: Rosaceae - Rose Family

Flowering Period: May, June

Also Called:

Climbing rose.

Stems:

Climbing, sprawling, or trailing, much-branched, 3 to 19 feet long; prickles mostly broad-based and curved, slender and straight prickles few.

Leaves:

Cauline, alternate, 3-foliolate or odd-pinnately compound; stipules .5 to .6 inch; petiole glabrous or pubescent to glandular-pubescent; leaflets 3 or 5, ovate to ovate-oblong, 1.4 to 3 inches long, .6 to 1.6 inch wide, base rounded, margins sharply toothed, tip acute or acuminate, lower surface pubescent to tomentose on veins, upper surface glabrous.

Inflorescences:

On terminal stems and lateral branches, corymbs, 5-15-flowered.

Flowers:

Pedicels .6 to 1 inch, stipitate-glandular; flowers 1.6 to 2.4 inches wide; hypanthium ovoid, .16 to .25 inch, stipitate-glandular; sepals 5, ovate to lanceolate, .4 to .6 inch; petals 5, rose or pink, 1.2 to 1.4 inch long; stamens 50--200; styles connate into a column, protruding from orifice of hypanthium at flowering.

Fruits:

Accessory, numerous achenes enclosed by enlarged, fleshy hypanthium (hip); hips red, globose, .26 to .43 by .25 to .35 inch, glabrous or sparsely stipitate-glandular; sepals deciduous; achenes 17-22, yellowish, .14 to .2 inch.

Habitat:

Tallgrass prairies, oak-hickory and elm-ash-hackberry woodlands, roadsides, pastures, and flood plains.

Distribution:

East 1/4 of Kansas and Riley County

Origin:

Native

Prairie rose inflorescence