Geum triflorum Pursh

Old man's whiskers (en)

Species

Angiosperms > Rosales > Rosaceae > Geum

Characteristics

Plants subscapose. Stems 10–45 cm, downy to pilose, ?hairs 0.1–3 mm, sometimes septate-glandular?. Leaves: basal 4–30 cm, blade interruptedly pinnate, major leaflets 10–18, alternating with 6–16 minor ones gradually increasing in size distally, terminal leaflet slightly larger than major laterals; cauline 1–5 cm, stipules adnate to leaf, indistinguishable from leaflets/lobes, blade ?bractlike, not resembling basal, opposite?, pinnate-pinnatifid. Inflorescences (1–)3–5(–7)-flowered. Pedicels densely woolly, sometimes glandular. Flowers nodding, ?erect in fruit?; epicalyx bractlets 6–15 mm; hypanthium maroon, purple, or greenish mottled with purple, ?may turn pale brown in fruit?; sepals erect, 7–14 mm; petals erect, cream to yellowish suffused with pink or purple, or purple-veined, elliptic, 7–13 mm, shorter to longer than sepals, apex rounded to obtuse. Fruiting tori sessile, densely puberulent. Fruiting styles wholly persistent or distal 3–7 mm tardily deciduous, not or inconspicuously geniculate-jointed, 15–70 mm, apex not or occasionally ± hooked, pilose to apex or nearly so.
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Stems 2–4 dm from a short, stout rhizome, hairy throughout; basal lvs 1–2 dm, oblanceolate, pinnately compound; lfls 7–17, the lateral progressively larger toward the lf-tip, cuneate-oblong, to 5 cm, irregularly laciniate or lobed, the terminal one similar but wider, often confluent with the upper lateral ones and scarcely larger than them; cauline lvs few and small, laciniate; peduncles eventually to 1 dm; fls nodding, broad-based, narrowed distally in life; sep shorter than the linear bractlets; pet purplish, 8–12 mm, about equaling the bractlets, suberect; mature styles 3–5 cm, strongly plumose except the terminal 2–5 mm; 2n=42. Dry woods and prairies; w. N.Y. to Minn. and Io., w. to B.C. and Calif. May, June. Our plants are var. triflorum. (Sieversia t.)
A stout herb. It is tufted and has a woody rootstock. It keeps growing from year to year. The leaves are mainly at the base. The leaves are feather like and divided into leaflets along the stalk. They are 15 cm long. They are grey-green and can be downy. The flower stems are 20-40 cm long. There are a cluster of yellow flowers with a maroon tinge.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) 0.2 - 0.4
Mature height (meter) 0.3 - 0.5
Root system rhizome
Rooting depth (meter) 0.2
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

It is a temperate plant. It grows in sub-alpine meadows and dry grassland in the Rocky Mountains. It suits hardiness zones 6-9.
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Damp places and mountain screes.
Light 5-8
Soil humidity 4-5
Soil texture 2-5
Soil acidity 4-7
Soil nutriment -
Hardiness (USDA) 1-6

Usage

The rootstocks are used to make a tea-like drink.
Uses beverage incense medicinal tea
Edible roots
Therapeutic use Tonic (leaf), Dermatological Aid (root), Eye Medicine (root), Oral Aid (root), Respiratory Aid (root), Throat Aid (root), Veterinary Aid (root), Cold Remedy (root), Dietary Aid (root), Febrifuge (root), Gynecological Aid (root), Love Medicine (root), Misc. Disease Remedy (root), Analgesic (root), Orthopedic Aid (root), Tonic (root), Cough Medicine (unspecified), Analgesic (unspecified), Antirheumatic (External) (unspecified), Disinfectant (unspecified), Herbal Steam (unspecified), Orthopedic Aid (unspecified), Eye (unspecified), Sore (unspecified), Swelling (unspecified), Tonic (unspecified), Chill (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by divisions or seedlings.
Mode divisions seedlings
Germination duration (days) 18 - 28
Germination temperacture (C°) 19 - 21
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -45
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Flower

Geum triflorum flower picture by Don Schuetze (cc-by-sa)
Geum triflorum flower picture by Xanthe Dick (cc-by-sa)
Geum triflorum flower picture by K O (cc-by-sa)

Distribution

Geum triflorum world distribution map, present in Canada and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:96690-2
WFO ID wfo-0001012992
COL ID 6KG6N
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Erythrocoma triflora Sieversia triflora Geum triflorum f. triflorum Geum triflorum var. triflorum Geum triflorum

Lower taxons

Geum triflorum var. campanulatum Geum triflorum var. canescens Geum triflorum var. ciliatum