Physocarpus alternans (M.E.Jones) J.T.Howell

Dwarf ninebark (en)

Species

Angiosperms > Rosales > Rosaceae > Physocarpus

Characteristics

Shrubs, 15 dm, ?densely branched?. Stems orientation not recorded, ?brown becoming gray?, stellate-hairy, glabrescent. Leaves: stipules oblong to narrowly elliptic or rhombic, 2–4 × 1.5–2 mm; petiole 2–10 mm; blade broadly ovate to orbiculate, 0.5–2 × 0.5–2 cm, slightly longer than wide, base rounded to truncate or slightly cordate, (0)3-or 5(7)-lobed, margins crenate to doubly crenate, apex rounded, abaxial surface more densely stellate-hairy (especially on veins), adaxial sparsely so. Inflorescences 5–10(–15)-flowered, open, umbel-like racemes, 3 cm diam.; bracts similar to stipules. Pedicels 0.6–1.5 cm, densely stellate-hairy. Flowers 7 mm diam.; hypanthium cup-shaped to campanulate, 1.5–3 mm, stellate-hairy; sepals ?pale green to white, darker in center?, triangular to narrowly ovate, 2.5–3 mm, apex gland-tipped, surfaces stellate-hairy; petals white to pale pink, broadly obovate to orbiculate, 3 × 2.5 mm; stamens ?20–30?, unequal (alternately long and short), shorter than petals, ?anthers pink to dark brown?; carpels 1(2), if 2 then connate at least 1/2 their lengths, indumentum not recorded. Follicles 1(2), ?pale buff?, shape not recorded, 3–6 mm (lengths equal to or slightly exceeding sepals), densely stellate-hairy; styles 2.5 mm ?sometimes distinctly bent?. Seeds 1 or 2, ?2 mm?.
Life form perennial
Growth form shrub
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.5 - 1.5
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Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
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Soil nutriment -
Hardiness (USDA) 4-10

Usage

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

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
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Optimum temperature (C°) -
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Vigor -
Productivity -

Images

Physocarpus alternans unspecified picture

Distribution

Physocarpus alternans world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:195607-2
WFO ID wfo-0001013791
COL ID 4HHDN
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Physocarpus alternans Physocarpus alternans subsp. alternans Physocarpus alternans subsp. panamintensis