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Plants
AGAVE AND YUCCA | CACTI | WILDFLOWERS

Stephanomeria Tenuifolia, Narrowleaf Wire-Lettuce


Plants > Wildflowers > Asteraceae > Stephanomeria Tenuifolia
Narrowleaf Wire-Lettuce; Stephanomeria tenuifolia, South Lake Trail, Sierra Nevada, California
Stephanomeria tenuifolia, South Lake Trail, Sierra Nevada, California
Common name:
Narrowleaf wire-lettuce
Family:
Aster (Asteraceae)
Scientific name:
Stephanomeria tenuifolia
Main flower color:
Pink
Range:
The Rocky Mountain states, all states to the west, and small parts of Texas and North Dakota
Height:
Up to 27 inches
Habitat:
Cliffs, rocky places, open hillsides; 1,000 to 9,500 feet
Leaves:
Linear, often thread-like, toothed or entire edges, up to 3 inches long
Season:
June to September
Pintrest
Leaves of stephanomeria tenuifolia are usually completely withered at flowering time; prior to this, the upper stem leaves are short and bract-like, while those at and near the base are narrow and linear. All leaves, and stems, are hairless. Plants produce up to five stems, which branch readily, and are green when young, brownish when older. Branches are held at a large angle, close to 90 degrees.

Flowerheads form in summer at the ends of the branches, sometimes stalkless but usually attached by a stalk of up to 2 inches, lined by small, alternate bracts. A few similarly-sized bractlets enclose the base of the involucre. Phyllaries number five or six; these are hairless, colored green or reddish, with rounded tips. Flowerheads usually have four or five toothed pink florets, less often six. The pappus bristles, visible most readily once the florets have withered, are pure white, and lined with tiny feathery hairs for their whole length. This is one aspect which differentiates stephanomeria tenuifolia from the very similar stephanomeria pauciflora, as the latter has brown bristles, with hairs only on the uppermost 80%.




Florets and pappus bristles
Florets and pappus bristles
Narrowleaf Wire-Lettuce
Woody stem
Toothed florets
Toothed florets
Purplish phyllaries
Purplish phyllaries
Withered flowerheads
Withered flowerheads
Pale pink flowerhead
Pale pink flowerhead
Many stems
Many stems
Pink flowerhead
Pink flowerhead
Branched stems
Branched stems
Slender branches
Slender branches
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