Almost everything about Pinus glabra argues against their being a pine at all. The bark is smooth and gray, close-grained, so like the bark of an oak or hickory that people walk straight past a mature one without taking the tree for a conifer; it is the single most reliable way to know the tree. The needles are soft, short, and paired, a cool dark green, worn in a dense rounded crown rather than the open candelabra of their relatives. And most usefully, they tolerate shade. Where nearly every other southern pine demands full sun and open, burned ground, spruce pine settles happily into the wooded margins just above the bottomlands, growing in the understory beneath oaks, beech, and magnolia. They were named by Thomas Walter, the English-born botanist of the Santee whose Flora Caroliniana appeared in London in 1788, the year before he died; the epithet glabra, meaning smooth and hairless, marks those glabrous young twigs. Even the timber keeps its own counsel, drying at so different a rate from other southern pines that mills cannot season it in the same batch. This is a pine for the places pines aren't supposed to go: the shaded corner, the woodland edge, the spot where you wanted evergreen structure and assumed you couldn't have it. Once you can recognize one, you start wanting them everywhere the light runs thin.
Before the South was farms and pavement it was, in great part, longleaf: an open, sunlit forest of widely spaced pines over a ground layer so rich a single square yard could hold dozens of species, the whole thing held together by fire. They ran across tens of millions of acres of the coastal plain, by some counts as many as ninety million, from Virginia to east Texas, and almost all of it is gone now, which is the quiet grief behind every longleaf you meet. They gave the South tar, pitch, and turpentine, the naval stores that caulked the wooden fleets of the eighteenth and nineteenth centuries and earned North Carolinians the nickname tar heels. Pinus palustris is the patient one. A seedling spends years as a dense green tussock, looking for all the world like a clump of grass and fooling everyone who doesn't know better, while underground they drive a deep taproot and wait out the fires that clear their rivals. Then they bolt, throwing up a single thick candle of a stem before they bother with branches. The needles are the longest of any eastern pine, well past a foot, hanging in soft fountains and catching wind like nothing else in the genus. Give one sun and room and you are planting the architecture the gopher tortoise and the red-cockaded woodpecker were waiting for. They ask only for patience, and they reward it for three hundred years.
Pinus patula is the weeping pine, and few conifers wear their needles so gracefully. Long, slender, and soft, the bright grass-green needles hang straight down from the branches in feathery curtains, so that the whole tree seems to pour toward the ground, especially in a light breeze. Fast-growing and open-crowned, this is a Mexican pine grown above all for that pendent, shimmering foliage.
The Himalayan white pine is one of the most graceful of the large conifers, a broad, elegant tree hung with long, soft, blue-green needles that droop from the branches in feathery sweeps. Borne five to a bundle in the manner of the white pines, the needles give the whole tree a silvered, weeping softness, and the long, resinous, banana-shaped cones dangle among them like ornaments.
