Petrophile nivea explained

Petrophile nivea is a species of flowering plant in the family Proteaceae and is endemic to southwestern Western Australia. It is a small shrub with crowded cylindrical, sharply-pointed leaves and more or less spherical heads of hairy white or cream-coloured flowers on the ends of branchlets.

Description

Petrophile nivea is a shrub that typically grows to high, wide and has glabrous branchlets and leaves. The leaves are crowded, cylindrical, long, wide, straight, curved or S-shaped, and sharply-pointed. The flowers are arranged on the ends of branchlets in sessile, more or less spherical heads in diameter, with a few narrow egg-shaped involucral bracts at the base. The flowers are about long, white or cream-coloured and densely hairy. Flowering occurs from May to August and the fruit is a nut, fused with others in a spherical head long and wide.[1]

Taxonomy

Petrophile nivea was first formally described in 2002 by Michael Clyde Hislop and Barbara Lynette Rye in the journal Nuytsia from material collected by Hislop near Warradarge in 1999.[2] The specific epithet (nivea) means "snow-white", referring to the flowers.[3]

Distribution and habitat

This petrophile is only known from a single locality near Eneabba where it grows with other petrophiles in heathland.

Conservation status

Petrophile nivea classified as "Threatened Flora (Declared Rare Flora — Extant)" by the Department of Environment and Conservation (Western Australia).

Notes and References

  1. Hislop . Michael C. . Rye . Barbara L. . Three new early-flowering species of Petrophile (Proteaceae) from south-western Australia . Nuytsia . 2002 . 14 . 3 . 372–373 . 22 December 2020.
  2. Web site: Petrophile nivea. APNI. 22 December 2020.
  3. Book: Sharr . Francis Aubi . George . Alex . Western Australian Plant Names and Their Meanings . 2019 . Four Gables Press . Kardinya, WA . 9780958034180 . 261 . 3rd.