Woodland Phlox

Found in Oregon and the Coast Range of Northern California, woodland phlox (Phlox adsurgens) inhabits open, wooded areas and mixed conifer forests between 1,500 and 6,000 feet.

Arising from a slender, underground rootstock, this native perennial has a decumbent, creeping stem that becomes erect terminally. The elliptic-ovate leaves occur in opposite pairs and are glabrous (smooth) and sessile (no stalk).

The woodland phlox inflorescence consists of a few terminal flowers. The pink flowers are salverform, that is, the corolla is a slender tube of five united petals that abruptly expand. The petal lobes are rounded and have varying white and pink markings. The calyx is glandular hairy.

This pretty, delicate plant is also commonly known as northern phlox. The genus name, Phlox, comes from Greek and means flame. The species designation (adsurgens), meaning rising to an erect position, describes the stem.

These woodland phlox specimens were photographed in June along the Old Growth Trail at Oregon Caves National Monument in Oregon.

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