Pinus resinosa (Red pine)

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Pinus resinosa Aiton

Red pine

Kingdom	Plantae	Plants, but not fungi, lichens, or algae
Subkingdom	Tracheobionta	Vascular plants—plants with a “circulatory system” for delivering water and nutrients
Division	Coniferophyta	Conifers—cone-bearing trees (and a few shrubs)
Class	Pinopsida	Gymnosperms such as cedars, Douglas-firs, cypresses, firs, junipers, kauri, larches, pines, hemlocks, redwoods, spruces, and yews
Order	Pinales	Cone-bearing plants: cedar, cypress, fir, juniper, larch, pine, redwood, spruce, yew, and others
Family	Pinaceae	Pine family: cedars, firs, hemlocks, larches, pines and spruces
Genus	Pinus	Latin for “pine”
Species	resinosa	"Resin-producing" (from Stearn's Botanical Latin)

About plant names...

Red pines are native to northeastern North America. They live for 200-400 years.

Identification: These trees typically reach 50-70' (15-21 m) tall, sometimes up to 200' (60 m). Bark is rough and scaly and silvery gray, peeling easily to reveal orange-red or brown bark underneath. Needles are 4-7" (10-17 cm) long, medium green, occurring in groups of two. Flowers are inconspicuous. Cones are light brown, oval in shape, about 2" (5 cm) long, occurring singly or in pairs. Needles snap easily when bent, an identifying feature. I am perplexed by the spherical bulges on the shrub-sized pine in photo 19.

For further information, see the Pinus comparison tables.

Online References:

Earl J.S. Rook's Flora, Fauna, Earth, and Sky ... The Natural History of the Northwoods

Illinois Wildflowers

The University of Connecticut Plant Database

The Gymnosperm Database

The USDA Forest Service's Fire Effects Information Database

BorealForest.org

Plants for a Future, a resource and information centre for edible and otherwise useful plants

Wikipedia

The Virginia Tech Department of Forest Resources and Environmental Conservation

EFloras

References:

Sibley, David Allen, The Sibley Guide to Trees, Alfred A. Knopf, 2009, p. 28

1 · 9/10/2016 · Arlington St., Groton, Massachusetts

2 · 9/20/2009 · Acadia National Park, Bar Harbor, Maine
≈ 9 × 6" (23 × 15 cm) ID is uncertain

3 · 9/20/2009 · Acadia National Park, Bar Harbor, Maine
≈ 7 × 4½" (17 × 11 cm) ID is uncertain

4 · 9/10/2016 · Arlington St., Groton, Massachusetts

5 · 7/2/2010 · Mt Vernon Trail, along Potomac River
≈ 7 × 6" (18 × 14 cm) ID is uncertain

6 · 9/16/2016 · Cadillac Mountain South Ridge Trail, Bar Harbor, Maine

7 · 7/2/2010 · Mt Vernon Trail, along Potomac River
≈ 6½ × 4' (2.0 × 1.3 m) ID is uncertain

8 · 9/16/2016 · Cadillac Mountain South Ridge Trail, Bar Harbor, Maine

9 · 7/17/2010 · Mackworth Island, Falmouth, Maine
≈ 31 × 46" (78 × 117 cm)

10 · 9/17/2016 · Mount Desert Island, Bar Harbor, Maine

11 · 9/17/2016 · Mount Desert Island, Bar Harbor, Maine
≈ 15 × 10" (39 × 26 cm)

12 · 4/3/2010 · Mt. Battie (Elev. 780'), Camden, Maine
≈ 31 × 41" (78 × 104 cm) ID is uncertain

13 · 6/9/2016 · Monhegan Island, Maine

Pinus resinosa description by Thomas H. Kent, last updated 19 Aug 2023.

14 · 9/29/2013 · North Bubble Hike, Acadia National Park, Bar Harbor, Maine
≈ 4 × 2½' (1.2 × 0.8 m)

15 · 6/12/2010 · Nashua River Rail Trail, East Pepperell, Massachusetts
≈ 6 × 3½" (14 × 9.4 cm)

16 · 6/12/2010 · Nashua River Rail Trail, East Pepperell, Massachusetts
≈ 4½ × 3" (11 × 7.5 cm)

17 · 6/12/2010 · Nashua River Rail Trail, East Pepperell, Massachusetts
≈ 3½ × 6" (9.4 × 14 cm)

18 · 6/12/2010 · Nashua River Rail Trail, East Pepperell, Massachusetts
≈ 5 × 3" (12 × 8.4 cm)

19 · The round swelling is pine-pine gall rust, Endocronartium harknessii. · 4/3/2010 · Mt. Battie (Elev. 780'), Camden, Maine
≈ 15 × 10" (39 × 26 cm) ID is uncertain

20 · 9/20/2009 · Acadia National Park, Bar Harbor, Maine
≈ 6 × 4" (15 × 10 cm) ID is uncertain

21 · The round swelling is pine-pine gall rust, Endocronartium harknessii. · 7/29/2023 · Mt. Battie (Elev. 780'), Camden, Maine ID is uncertain

22 · 5/15/2016 · Mt. Watatic, Ashby, Massachusetts
≈ 21 × 14" (52 × 34 cm)

23 · 12/11/2011 · Nashua River Rail Trail, Groton, Groton, Massachusetts
≈ 6 × 4½" (16 × 11 cm)

24 · 9/16/2016 · Cadillac Mountain South Ridge Trail, Bar Harbor, Maine

25 · 5/15/2016 · Mt. Watatic, Ashby, Massachusetts
≈ 31 × 21" (78 × 52 cm)

26 · 9/29/2013 · North Bubble Hike, Acadia National Park, Bar Harbor, Maine
≈ 3 × 2½' (99 × 79 cm)

27 · 6/9/2016 · Monhegan Island, Maine

Range:

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