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Parry Pinyon Care

Pinus Quadrifolia

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What is the plant

Pinus quadrifolia, the Parry pinyon, is a pine in the pinyon pine group native to southernmost California in the United States and northern Baja California in Mexico, from 33Β° 30' N south to 30Β° 30' N. It occurs at moderate altitudes from 1,300 metres (4,300 ft) to 1,800 metres (5,900 ft), rarely as low as 1,200 metres (3,900 ft) and as high as 2,500 metres (8,200 ft). It is scarce and often scattered in this region, forming open woodlands, usually mixed with junipers. Other common names include nut pine and fourleaf pinyon pine.

Pinus quadrifolia is a small to medium size tree, reaching 8 to 15 m (26 to 49 ft) tall and with a trunk diameter of up to 40 cm (16 in), rarely more. The bark is thick, rough and scaly. The leaves (needles) are in fascicles of 4–5, moderately stout, 2.5–5.5 cm (1–2 1⁄8 in) long; glossy dark green with no stomata on the outer face, and a dense bright white band of stomata on the inner surfaces. The cones are globose, 4–5.5 cm (1 5⁄8–2 1⁄8 in) long and broad when closed, green at first, ripening yellow to orange-buff when 18–20 months old, with only a small number of thick scales, with typically 5–10 fertile scales.

The cones open to 5 to 7 cm (2 to 2 3⁄4 in) broad when mature, holding the seeds on the scales after opening. The seeds are 10–14 mm (13⁄32–9⁄16 in) long, with a thin shell, a white endosperm, and a vestigial 1–2 mm (1⁄32–3⁄32 in) wing; they are dispersed by the pinyon jay, which plucks the seeds out of the open cones. The jay, which uses the seeds as a food resource, stores many of the seeds for later use, and some of these stored seeds are not used and are able to grow into new trees.

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Full Sun

Difficulty

Difficulty

Medium

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