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Foliage and cones. Red spruce is a perennial, [8] shade-tolerant, late successional [9] coniferous tree that under optimal conditions grows to 18–40 m (59–131 ft) tall with a trunk diameter of about 60 cm (24 in), though exceptional specimens can reach 46 m (151 ft) tall and 100 cm (39 inches) in diameter.
A mature female big-cone pine (Pinus coulteri) cone, the heaviest pine cone A young female cone on a Norway spruce (Picea abies) Immature male cones of Swiss pine (Pinus cembra) A conifer cone, or in formal botanical usage a strobilus, pl.: strobili, is a seed-bearing organ on gymnosperm plants, especially in conifers and cycads.
The leaves snap cleanly when bent; this character, stated as diagnostic for red pine in some texts, is however shared by several other pine species. The cones are symmetrical ovoid, 4–6 cm (1 + 1 ⁄ 2 – 2 + 1 ⁄ 4 in) long by 2.5 cm (1 in) broad, and purple before maturity, ripening to nut-blue and opening to 4–5 cm (1 + 1 ⁄ 2 –2 in ...
Mature Pinus pinea (stone pine); note umbrella-shaped canopy: Pollen cones of Pinus pinea (stone pine) A red pine (Pinus resinosa) with exposed roots: Young spring growth ("candles") on a loblolly pine: Monterey pine bark: Monterey pine cone on forest floor: Whitebark pine in the Sierra Nevada: Hartweg's pine forest in Mexico
An immature second-year cone of European black pine (Pinus nigra) with the light brown umbo visible on the green cone scales An immature cone of Norway spruce (Picea abies) with no umbo. Classification of the subfamilies and genera of Pinaceae has been subject to debate in the past.
Picea glehnii, the Sakhalin spruce [2] [3] or Glehn's spruce, is a species of conifer in the family Pinaceae. It was named after a Russian botanist , taxonomist , Sakhalin and Amur river regions explorer, geographer and hydrographer Peter von Glehn [ 4 ] (1835—1876), the person who was the first to describe this conifer.
The cones are broad, ovoid, 8–15 cm (3–6 in) long, and take 36 months to mature, longer than any other pine. The seeds ( pine nuts , piñones , pinhões , pinoli , or pignons ) are large, 2 cm ( 3 ⁄ 4 in) long, and pale brown with a powdery black coating that rubs off easily, and have a rudimentary 4–8 mm ( 5 ⁄ 32 – 5 ⁄ 16 in ...
The seed cones are borne on year-old twigs and are small ovoid-globose or oblong-cylindric, ranging from 15–40 mm (5 ⁄ 8 – 1 + 5 ⁄ 8 in) long, except in T. mertensiana, where they are cylindrical and longer, 35–80 mm (1 + 1 ⁄ 2 – 3 + 1 ⁄ 4 in) in length; they are solitary, terminal or rarely lateral, pendulous, and are sessile ...