Physocarpus opulifolius (Atlantic ninebark)

Physocarpus opulifolius (L.) Maxim.， orth. cons.

Atlantic ninebark, common ninebark, ninebark

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6/21/2012 · Bemis Rd Conservation Area, Pepperell, Massachusetts · ≈ 6 × 4″ (15 × 10 cm)

8/2/2008 · Bar Harbor, Maine · ≈ 4½ × 3″ (11 × 7.9 cm) ID is uncertain

8/17/2014 · Bald Mountain, Franconia Notch Area, White Mountains, New Hampshire · ≈ 7 × 4½″ (18 × 12 cm)

7/31/2012 · Bemis Rd Conservation Area, Pepperell, Massachusetts · ≈ 6 × 4″ (15 × 10 cm)

9/24/2010 · Nissitissit River Wildlife Management Area, Pepperell, Massachusetts · ≈ 5 × 3½″ (13 × 9.2 cm) ID is uncertain

7/31/2012 · Bemis Rd Conservation Area, Pepperell, Massachusetts · ≈ 7 × 4½″ (17 × 11 cm)

7/31/2012 · Bemis Rd Conservation Area, Pepperell, Massachusetts · ≈ 6 × 4″ (15 × 10 cm)

9/24/2010 · Nissitissit River Wildlife Management Area, Pepperell, Massachusetts · ≈ 5 × 3½″ (13 × 9.2 cm) ID is uncertain

9/24/2010 · Nissitissit River Wildlife Management Area, Pepperell, Massachusetts · ≈ 12 × 8″ (31 × 20 cm) ID is uncertain

7/31/2012 · Bemis Rd Conservation Area, Pepperell, Massachusetts · ≈ 8 × 5″ (19 × 13 cm)

8/17/2014 · Bald Mountain, Franconia Notch Area, White Mountains, New Hampshire · ≈ 6 × 4½″ (16 × 11 cm)

6/21/2012 · Bemis Rd Conservation Area, Pepperell, Massachusetts · ≈ 4½ × 3″ (11 × 7.9 cm)

Kingdom	Plantae	Plants, but not fungi, lichens, or algae (from Stearn's Botanical Latin)
Subkingdom	Tracheobionta	Vascular plants—plants with a “circulatory system” for delivering water and nutrients
Division	Magnoliophyta	Flowering plants, also known as angiosperms
Class	Magnoliopsida	Dicotyledons—plants with two initial seed leaves
Subclass	Rosidae	Roses, legumes, proteas, dogwoods, hydrangeas, mistletoes, euphorbias, grapes, many more
Order	Rosales	Rose family and eight others
Family	Rosaceae	Includes apples, apricots, plums, cherries, peaches, pears, raspberries, strawberries, almonds, roses, meadowsweets, photinias, firethorns, rowans, and hawthorns; many others
Genus	Physocarpus	From the Greek phusa or physa, “bladder, a pair of bellows” and karpos, “fruit,” thus “bladdery fruit”
Species	opulifolius

Range:

Physocarpus opulifolius description by Thomas H. Kent, not updated.