Physocarpus malvaceus Kuntze

Mallow-leaf ninebark (en)

Species

Angiosperms > Rosales > Rosaceae > Physocarpus

Characteristics

Shrubs, 20 dm. Stems spreading, ?brown becoming grayish black?, glabrous or finely stellate-hairy. Leaves: stipules oblong to elliptic or obovate, 6 × 2.5 mm, ?base broad, apex rounded and erose to apiculate or acute?; petiole 1–2.5(–3) cm; blade broadly ovate to orbiculate, 2–6 × 2.5–6 cm, sometimes wider than long, base truncate to slightly cordate, 3-or 5-lobed, ?clefts between lobes may be shallow to deep?, margins doubly crenate to doubly serrate, apex rounded, obtuse, or acute, surfaces glabrous or sparsely stellate-hairy (more so on abaxial veins). Inflorescences 15–20-flowered, fairly dense, hemispheric racemes, 2.5–4 cm diam.; bracts narrowly obovate to spatulate, 4.5 mm, apex erose or acute. Pedicels 8–15 mm, densely stellate-hairy. Flowers 5–8 mm diam.; hypanthium campanulate, 1.5–2 mm, densely stellate-hairy; sepals triangular to ovate, 2–3 mm, apex gland-tipped, surfaces densely stellate-hairy; petals white, broadly elliptic to obovate or orbiculate, 4.5 × 4.5 mm; stamens ?ca. 30?, equal to or slightly exceeding petals; carpels 2(3), connate at least 1/2 their lengths, densely stellate-hairy. Follicles 2(3), ovoid, flattened, 2.5 mm (lengths not exceeding sepals), ?keeled apically?, densely stellate-hairy, ?hairs white?; styles 2.5–3 mm. Seeds 1 or 2, ?pyriform, 1.5 mm?.
More
A shrub. It grows 2 m tall. The fruit are hairy with star shaped hairs. The fruit are follicles united for half their length.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 2.0
Mature height (meter) 3.55
Root system -
Rooting depth (meter) 0.6
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

It grows on dry sites. It grows on rocky hillsides and open forests.
Light 6-8
Soil humidity 2-4
Soil texture -
Soil acidity 5-7
Soil nutriment -
Hardiness (USDA) 5-8

Usage

The roots are cooked and eaten.
Uses medicinal
Edible roots
Therapeutic use Hunting Medicine (bark)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -23
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Flower

Physocarpus malvaceus flower picture by stevensmith2048 (cc-by-sa)

Distribution

Physocarpus malvaceus world distribution map, present in Canada and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:195619-2
WFO ID wfo-0001013797
COL ID 4HHDX
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Neillia torreyi Neillia malvacea Opulaster malvaceus Opulaster pauciflorus Opulaster pubescens Physocarpus pauciflorus Physocarpus malvaceus Neillia monogyna var. malvacea Spiraea opulifolia var. pauciflora