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Jeffrey pine wood and ponderosa pine wood are sold together as yellow pine. [6] Both kinds of wood are hard (with a Janka hardness of 550 lbf (2,400 N)), but the western yellow pine wood is less dense than southern yellow pine wood (28 lb/cu ft (0.45 g/cm 3 ) versus 35 lb/cu ft (0.56 g/cm 3 ) for shortleaf pine).
Pinus ponderosa, commonly known as the ponderosa pine, [3] bull pine, blackjack pine, [4] western yellow-pine, [5] or filipinus pine, [6] is a very large pine tree species of variable habitat native to mountainous regions of western North America. It is the most widely distributed pine species in North America.
Due to this deforestation and overharvesting, only about 3% of the original longleaf pine forest remains, and little new is planted. Longleaf pine is available, however, at many nurseries within its range; the southernmost known point of sale is in Lake Worth Beach, Florida. The yellow, resinous wood is used for lumber and pulp.
The flowers are 9–12 mm long and produced in a cluster of 1–11 together at the apex of the inflorescence, which is a raceme. [5] It flowers between early summer and mid autumn; plants that flower in summer are yellow and sparsely hairy, while those that flower in autumn are red and densely hairy. These two color "forms" overlap in flowering ...
Gaillardia parryi grows in clay or sandy soils in places dominated by sagebrush, pinyon pine, or yellow pine. It is a perennial herb up to 35 cm (14 in) tall, with most of the leaves clustered around the base. Each flower head is on its own flower stalk up to 30 cm (12 in) long.
The large flowers are 3.5–6 cm (1 + 1 ⁄ 2 – 2 + 1 ⁄ 4 in) in diameter, a rich yellow, sometimes with orange, coppery, or reddish margins surrounding the base. [3] Their blossoms are borne in great showy masses, and tend to bloom one at a time. Each petal has an attractive, curved shape that comes to a point.