Pinus echinata is a gymnosperm evergreen tree to 35 m, bark scaly, blackish becoming red-brown plated, twigs breaking sharply, waxy-pale.
Leaves needle-like, mostly in 2’s, occasionally in 3’s, 7-12 cm long, about 0.1 cm wide, sharp-tipped, flexible, persisting 2-4 years.
Flowers: None; gymnosperm, cones monoecious; male cones deciduous, in dense clusters at ends of stems; female cones egg-shaped to conical, 4-6 cm long, scales with straight, thin prickle 0.1-0.2 cm long, persisting several years.
Fruit: None. Seeds winged, wind-dispersed.
Wetland status: UPL.
Frequency: rare (NYS S1, U).
Origin: Native, but more common to the south and west.
Habitat: dry, sandy or rocky, open soil, pH 4-6 (USDA, NRCS 2010).
Notes: Found in Kreischer Hill (Charleston), three trees moved in 2004.