Jepson eFlora: Taxon page
Vascular Plants of California
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Physocarpus capitatus


Higher Taxonomy
Family: RosaceaeView DescriptionDichotomous Key
Common Name: ROSE FAMILY
Habit: Annual to tree, glandular or not. Leaf: simple to palmately or pinnately compound, generally alternate; stipules free to fused (0), persistent to deciduous. Inflorescence: cyme, raceme, panicle, cluster, or flowers 1; bractlets on pedicel ("pedicel bractlets") generally 0--3(many), subtended by bract or generally not. Flower: generally bisexual, radial; hypanthium free or fused to ovary, saucer- to funnel-shaped, subtending bractlets ("hypanthium bractlets") 0--5, alternate sepals; sepals generally 5; petals generally 5, free; stamens (0,1)5--many, anther pollen sacs generally 2; pistils (0)1--many, simple or compound, ovary superior to inferior, styles 1--5. Fruit: 1--many per flower, achene (fleshy-coated or not), follicle, drupe, or pome with generally papery core, occasionally drupe-like with 1--5 stones. Seed: generally 1--5 (per fruit, not per flower).
Genera In Family: 110 genera, +- 3000 species: worldwide, especially temperate; many cultivated for ornament, fruit, especially Cotoneaster, Fragaria, Malus, Prunus, Pyracantha, Rosa, Rubus. Note: Number of teeth is per leaf or leaflet, not per side of leaf or leaflet, except in Drymocallis.
eFlora Treatment Author: Daniel Potter & Barbara Ertter, family description, key to genera, treatment of genera by Daniel Potter, except as noted
Scientific Editor: Daniel Potter, Thomas J. Rosatti.
Genus: PhysocarpusView DescriptionDichotomous Key


Common Name: NINEBARK
Habit: Shrub, generally +- stellate-hairy. Leaf: petioled, stipuled, deciduous, ovate to +- round, generally palmately 3--7-lobed, crenate to serrate. Inflorescence: umbel-like cluster, bracted; pedicel bractlets generally 0. Flower: hypanthium bell-shaped, bractlets 0; sepals persistent; petals rounded, white or pale pink; stamens 20--40, exserted; pistils 1--5, fused at base (if 3--5, fused below middle), ovary superior, style thread-like, stigma head-like. Fruit: follicles, inflated or +- flat, dehiscent along both sutures. Seed: 1--4, ovoid; coat hard, shiny.
Etymology: (Greek: bladdery fruit)
eFlora Treatment Author: Sang-Hun Oh
Physocarpus capitatus (Pursh) Kuntze
NATIVE
Habit: Plant 10--25 dm. Leaf: glabrous to moderately hairy; lobes generally 3--5, generally serrate. Inflorescence: >> 10-flowered, sparsely to densely hairy. Flower: hypanthium 1.5--2.5 mm, 4--4.8 mm wide at rim; sepals 2.5--3.5 mm; petals 2.5--3 mm; stamens 25--30, longest filament 4--5 mm. Fruit: 3--5, 8--10 mm, glabrous to +- hairy. Chromosomes: n=9.
Ecology: Moist banks, n-facing slopes, mixed-conifer forest; Elevation: < 1400 m. Bioregional Distribution: CA-FP (exc GV); Distribution Outside California: to Alaska, Idaho. Flowering Time: May--Jul
Jepson eFlora Author: Sang-Hun Oh
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

Previous taxon: Physocarpus alternans
Next taxon: Potentilla

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Botanical illustration including Physocarpus capitatus

botanical illustration including Physocarpus capitatus

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Citation for this treatment: Sang-Hun Oh 2012, Physocarpus capitatus, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=38129, accessed on April 23, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 23, 2024.

Physocarpus capitatus
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©2016 Keir Morse
Physocarpus capitatus
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©2008 Keir Morse
Physocarpus capitatus
click for enlargement
©2008 Keir Morse
Physocarpus capitatus
click for enlargement
©2008 Keir Morse
Physocarpus capitatus
click for enlargement
©2008 Keir Morse

More photos of Physocarpus capitatus
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Geographic subdivisions for Physocarpus capitatus:
CA-FP (exc GV)
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).





 

Data provided by the participants of the  Consortium of California Herbaria.
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All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).