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Yellow-flowered horse-gentian

Triosteum angustifolium L.

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Yellow-flowered horse-gentian
Yellow-flowered horse-gentian
Yellow-flowered horse-gentian habit
Yellow-flowered horse-gentian inflorescence
Yellow-flowered horse-gentian flowers and bracts
Yellow-flowered horse-gentian leaf

Morphology

Stem
Solitary or few, erect to ascending, unbranched, moderately to densely long hirsute.
Leaves
Opposite, simple; oblanceolate to narrowly elliptic, 4 to 7 inches long, 1 to 2.8 inches wide, base attenuate, not encircling stem, margins ciliate, apex acuminate or occasionally acute, surfaces moderately hirsute, veins often canescent.
Inflorescence
Solitary flowers in axils of upper leaves, sessile, each flower subtended by pair of leaf-like bracts as long or longer than flower; bracts linear-lanceolate to narrowly elliptic, sparsely pubescent.
Flower
Calyx 5-lobed; lobes linear to narrowly triangular or narrowly lanceolate, .3 to .5 inch long, .04 to .08 inch wide, sparsely hirsute, margins entire, ciliate with long and short hairs, apex acute to obtuse; corolla pale yellow, salverform, .5 to .6 inch, 5-lobed, outer surface with gland-tipped hairs; stamens 5; style included.
Fruit
Drupe, pale orange, spherical, .2 to .3 inch diameter, moderately to densely hairy; nutlets usually 3, tan to straw-colored, ellipsoid.

Ecology

Habitat
Rocky wooded hillsides, bluff bases, stream banks
Distribution
Cherokee County, Kansas
Quick Facts
Plant Type
Wildflower
Family
Caprifoliaceae - Honeysuckle Family
Life Span
Perennial
Height
10-28 inches
Origin
Native
Last Updated
2019-02-27
Color Groups
Yellow Wildflowers
Flowering Period
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Blooms: April, May, June