Tuesday, April 16, 2019

Geum triflorum (Old Man's Whiskers, Prairie Smoke)

7/7/07 Meadow off Hwy. 108 west of Sonora Pass historical marker, 
Toiyabe National Forest, Mono County, CA


COMMON NAME: Old Man's Whiskers, Prairie Smoke

SPECIES: Geum triflorum

FAMILY: Rosaceae (Rose Family)


LOCATION: Meadow off Hwy. 108 west of Sonora Pass historical marker, Toiyabe National Forest, Mono County, CA

Treatment from Jepson eFlora:

Habit: Plant in patches, rhizomed, +- gray-green. 

Stem: generally 10--50 cm. 

Leaf: 4--30 cm; leaflets wedge-shaped, generally 2--3-lobed > 1/2 to base, lobes deeply few-toothed, main leaflets 3--9 per side, largest 1--3 cm, +- = terminal. 

Inflorescence: (1)3--5(7)-flowered; pedicels tomentose, occasionally glandular. 

Flower: +- cup-shaped, nodding; hypanthium bractlets 5--15 mm, linear-oblanceolate, outcurved; sepals erect, 6--14 mm, maroon, purple, or +- green and purple-tinged; petals erect, 7--13 mm, +- elliptic, cream to pale yellow, pink-tinged or purple-veined, persistent. 

Fruit: body 2.5--5 mm; style 15--40 mm below tardily deciduous tip, not or inconspicuously hooked, plumose. 

Ecology: Dry meadow edges, sagebrush scrub, open yellow-pine forest; 

Elevation: 1300--3200 m. 

Bioregional Distribution: c KR (Marble Mtns), CaRH, n&c SNH, GB; 

Distribution Outside California: to British Columbia, Montana, Colorado. 

Flowering Time: May--Jul 

Synonyms: Geum canescens (Greene) Munz; Geum ciliatum Pursh; Geum triflorum var. canescens (Greene) Kartesz & Gandhi

Jepson eFlora Author: Joseph R. Rohrer

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