Geum laciniatum Murray

Rough avens (en), Benoîte (fr)

Species

Angiosperms > Rosales > Rosaceae > Geum

Characteristics

Plants leafy-stemmed. Stems 30–100 cm, hirsute, ?some hairs 2–2.5 mm?. Leaves: basal 15–32 cm, blade simple, lyrate-pinnate, or pinnate, major leaflets 1–7, alternating with 0–10 minor leaflets, terminal leaflet slightly to much larger than major laterals; cauline 3.5–18 cm, stipules ± free, 4–14 × 7–17 mm, blade pinnate, 3-foliolate, or simple and unlobed. Inflorescences 2–9-flowered. Pedicels densely puberulent, hirsute, eglandular. Flowers erect; epicalyx bractlets 1–2 mm; hypanthium green; sepals spreading but soon reflexed, 3–10 mm; petals spreading, white, oblong to elliptic, 2–5 mm, shorter than sepals, apex obtuse to rounded. Fruiting tori sessile, glabrous except for ring of bristles at base and tuft at apex. Fruiting styles geniculate-jointed, proximal segment persistent, 2.5–5 mm, apex hooked, glabrous, sometimes 1–2 eglandular bristles at base, distal segment deciduous, 1–2 mm, short hairs on basal 1/2. 2n = 42.
More
Stem 4–10 dm, hirsutulous with mostly de flexed hairs; lower lvs long-petioled, pinnately compound, the segments pinnately lobed and incised; upper lvs 3-foliolate with cuneate-obovate segments, or merely 3-lobed; pedicels minutely puberulent and densely hirsute, the hairs commonly 1–1.5 mm long; sep triangular, 4–10 mm; pet white, 3–5 mm; head of achenes subglobose, 12–18 mm; receptacle glabrous or with a few short bristles; achenes 3–5 mm, excluding the style, glabrous or sparsely hirsute; 2n=42. In moist or wet soil; N.S. to s. Ont. and Mich., s. to N.J., w. Va., W.Va., Ky., and Mo. May, June.
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.68 - 0.83
Root system -
Rooting depth (meter) 0.3
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 5-7
Soil humidity 4-5
Soil texture 3-4
Soil acidity 3-6
Soil nutriment -
Hardiness (USDA) 4-9

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 21 - 28
Germination temperacture (C°) 18 - 21
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Geum laciniatum habit picture by PT (cc-by-sa)

Leaf

Geum laciniatum leaf picture by Brenda Morris (cc-by-sa)
Geum laciniatum leaf picture by Pascal Guerin (cc-by-sa)
Geum laciniatum leaf picture by William Coville (cc-by-sa)

Flower

Geum laciniatum flower picture by Jillian Kurek (cc-by-sa)
Geum laciniatum flower picture by Brenda Morris (cc-by-sa)
Geum laciniatum flower picture by Betty Wood (cc-by-sa)

Fruit

Geum laciniatum fruit picture by solazy (cc-by-sa)
Geum laciniatum fruit picture by Lisa J (cc-by-sa)
Geum laciniatum fruit picture by William Coville (cc-by-sa)

Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:725280-1
WFO ID wfo-0001012963
COL ID 3FYBG
BDTFX ID 30101
INPN ID 100205
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Geum laciniatum var. laciniatum Geum laciniatum

Lower taxons

Geum laciniatum var. trichocarpum