Pinus maximartinezii Rzedowski

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Pinus maximartinezii, called Martinez pinyon, big-cone pinyon or maxipiñon, is a pine in the pinyon pine group, native to west-central Mexico.

Description

It is a small tree, reaching 5–15 m (16–49 ft) tall and with a trunk diameter of up to 50 cm (20 in). The bark is brown, thick and fissured at the base of the trunk. The leaves ('needles') are in fascicles of five, slender, 7–13 cm (2+3⁄4–5 in) long, and deep green to blue-green, with stomata confined to a bright white band on the inner surfaces. The cones are ovoid, massive, 15–27 cm (6–10+3⁄4 in) long and 8–14 cm (3+1⁄4–5+1⁄2 in) broad and up to 2 kg (4.4 lb) weight when closed, green at first, ripening yellow-brown when 26–28 months old, with very thick, woody scales, typically 30–60 fertile scales. The scales are unusual for a pine in the soft pine group (Pinus subgenus Strobus); most pines in that group have flexible scales. The cones open to 10–15 cm (4–6 in) broad when mature. The seeds are 2–3 cm (3⁄4–1+1⁄4 in) long, with a thick shell, with a vestigial 1–2 mm (0.04–0.08 in) wing; the seedlings have 18–24 cotyledons, the highest number reported for any plant.

It differs from all other pinyon species in that it has very massive cones and large seeds. Like other pinyons, the seeds are edible; this represents a threat to the species' survival, as the majority of the seeds produced are harvested, limiting natural regeneration of the pines.

Pinus maximartinezii - Wikipedia

Pinus maximartinezii (maxipiñon) description - The Gymnosperm Database (conifers.org)

https://youtu.be/vhI8LXK7A2Q?t=1861