Rubus argutus Link

Sawtooth blackberry (en)

Species

Angiosperms > Rosales > Rosaceae > Rubus

Characteristics

Stems erect, to 2 m, glabrous; armature of the stems of straight, spreading or slightly reflexed prickles 3–8 mm from a flattened base; petioles, flowering branches, and occasionally the pedicels and midveins commonly armed with smaller, distinctly hooked prickles; primocane lvs 5-foliolate, the terminal lfl long-stalked, commonly 8–12 cm, the intermediate pair conspicuously stalked and the lfls not overlapping; lfls all about alike in shape, oblong or oblong-oblanceolate, typically less than half as wide as long, sharply or often coarsely and irregularly serrate, widest above the middle, thence sharply acuminate to the tip, below the middle ± cuneate, with the sides usually conspicuously straight or straightish but serrate, acute to obtuse or rounded at base, softly pubescent beneath; pedicels villous, glandless or with a few scattered glands; fls in short, loose, open racemiform cymes. Chiefly a southern sp., from Md., Ky., and Mo. to Fla., and Tex., but n. occasionally to Mass. May, June. (R. blakei; R. fatuus; R. jugosus; R. louisianus)
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Spreading shrub; primocanes suberect to somewhat arching, greenish brown, with rounded angles and furrowed between, with numerous subsessile glands and sparsely to moderately clothed in simple hairs; armature of many, stout, erect to slightly deflexed prickles on angles. Young stems densely hairy and glandular. Leaflets 5, almost glabrous to sparsely pilose on upper surface, sparsely to moderately pilose on veins but not tomentose on lower surface, coarsely 1-2-serrate; terminal leaflet lamina ± elliptic, acuminate, 50-100 × 20-50 mm, with petiolule c. ?-1/4 length of lamina. Stipules linear-lanceolate. Infl. moderately to densely hairy, with subsessile glands. Sepals acuminate, moderately pilose but tomentose only on margins and within, without pricklets. Petals rounded, crinkled, white. Anthers glabrous.
A shrub. The stems are erect and 2 m tall. It has prickles. The leaves have 5 leaflets. The fruit often have large juicy drupelets.
Life form perennial
Growth form shrub
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 2.5
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

Dry or moist thickets and woodland margins. Woodlands, savannahs, prairies, fields, meadows, swamps, rock outcrops, sand dunes, sandy soil, disturbed areas, dry to wet soil; at elevations up to 1,400 metres
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Dry or moist thickets and woodland margins. Woodlands, savannahs, prairies, fields, meadows, swamps, rock outcrops, sand dunes, sandy soil, disturbed areas, dry to wet soil; at elevations up to 1,400 metres
It is a temperate plant.
Light 6-9
Soil humidity 4-6
Soil texture 2-5
Soil acidity 2-7
Soil nutriment -
Hardiness (USDA) 6-9

Usage

The fruit are eaten raw or cooked. They are also used for juice.
Uses beverage breeding dye food medicinal
Edible fruits leaves
Therapeutic use Antidiarrheal (leaf), Antidiarrheal (root), Dermatological Aid (root), Hemorrhoid Remedy (root), Oral Aid (root), Antirheumatic (Internal) (unspecified), Stimulant (unspecified), Throat Aid (unspecified), Tonic (unspecified), Urinary Aid (unspecified), Venereal Aid (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings. Seeds needs stratification.
Mode cuttings seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment stratification
Minimum temperature (C°) -
Optimum temperature (C°) 14 - 20
Size -
Vigor -
Productivity -

Images

Rubus argutus unspecified picture

Distribution

Rubus argutus world distribution map, present in New Zealand and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:30046614-2
WFO ID wfo-0001006755
COL ID 4TJGP
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Rubus argutus Rubus betulifolius Rubus rhodophyllus Rubus louisianus