PlantNET Home PlantNET Home | Search NSW Flora | Contact Us  
FloraOnline
Introduction
Plant Name Search
Index Search
Spatial Search
Identification Keys
Classification
Glossary
HerbLink (Type Images)
WeedAlert
Other PlantNET Sites
Other Data Sources
NEW SOUTH WALES FLORA ONLINE Printable Page

Genus Petrorhagia Family Caryophyllaceae

Description: Annual herbs, simple or branched at base.

Leaves linear, acute, sheathing at base; margins finely toothed; stipules absent.

Flowers solitary or in terminal heads, loosely enclosed by broad-elliptic and scarious involucral bracts. Calyx tubular, 5-toothed, 5–15-veined, with 5 scarious strips marking the fusion lines of the sepals. Petals 5, clawed, with 2-lobed obcordate limb, pink. Stamens 10. Styles 2.

Capsule ovoid; 1-locular above, 4-locular below, shorter than the calyx, opening by 4 teeth; seeds hollowed out on one side, tubercled or papillate on the outer face.


Flower
Photo L. von Richter

Fruit
Photo L. von Richter

Other photo
Photo John R. Hosking

Distribution and occurrence: World: c. 20 species, mainly Mediterranean region. Australia: 2 species (naturalized), all States except N.T.

Text by A. Doust
Taxon concept:

 Key to the species 
1Internodes usually deeply furrowed, the middle ones usually with glandular hairs; leaf sheaths at least twice as long as broad; flowers shortly pedicellate; involucral bracts keeled with mucronate apices; seeds usually less than 1.3 mm long, strongly glandular-papillatePetrorhagia dubia
Internodes terete or somewhat furrowed, either covered in simple hairs or glabrous; leaf sheaths less than twice as long as broad; flowers subsessile; involucral bracts without keels, apices obtuse; seeds 1.3–1.6 mm long, with numerous small tuberclesPetrorhagia nanteuilii

  Privacy | Copyright | Disclaimer | About PlantNET | Cite PlantNET