PlantNET Home PlantNET Home | Search NSW Flora | Contact Us  
Plant Name Search
Index Search
Spatial Search
Identification Keys
HerbLink (Type Images)
Other PlantNET Sites
Other Data Sources

Grevillea diffusa Sieber ex Spreng.
Family Proteaceae
Grevillea diffusa Sieber ex Spreng. APNI*

Description: Low compact shrub to 0.5 m high, occasionally erect and to 2 m high.

Leaves ellitpic to narrow-elliptic to oblanceolate or linear, 2–13 cm long, 1–10 mm wide, margins entire and recurved to revolute, lower surface exposed, silky.

Conflorescences erect to decurved or pendent, dome-shaped to ± globose. Perianth dark red or rarely green and brown, silky to loosely villous outside, bearded inside. Gynoecium mostly 6–11 mm long; ovary stipitate, glabrous; style red, sharply curved at c. 1–1.5 mm from the apex, glabrous except for erect hairs or papillae near apex; pollen presenter oblique.

Follicle glabrous.


Flowering: Flowers winter and spring.

Distribution and occurrence: Grows in dry sclerophyll forest or woodland, occasionally in swampy heath, in sandy soils, usually on Hawkesbury sandstone.
NSW subdivisions: CC
AVH map***

Text by R. O. Makinson
Taxon concept:

 Key to the subspecies 
1Branchlets ± terete or weakly angular in cross section, shortly tomentose (irregularly ascending hairs); leaves elliptic, 1.5–5.5 cm long, 2–4 mm wide; conflorescences dense, ± sessile to shortly pedunculate (peduncles ± terete, to 1 cm long, pubescent, flexuous or not); style with papillose hairs confined to apical 1 mmsubsp. diffusa
Branchlets strongly angular in cross section, sericeous (rarely pubescent) to glabrous; leaves narrow-elliptic to ± linear, mostly 6–15 cm long and 2–4 mm wide; conflorescences dense to loose, pedunculate (peduncles angular, usually 1–4 cm long, sericeous to glabrous, usually flexuous); style with papillose hairs extending over apical half.2
2Branchlets rarely secund; peduncles usually <1.5 cm long; leaves usually <7 cm long, with ± smoothly recurved margins; perianth and style dark crimson to dark burgundy; open shrub 1–2 m high.subsp. constablei
Branchlets usually strongly secund; peduncles usually 1.5–4 cm long; leaves 6–15 cm long, with angularly refracted margins; perianth and style scarlet to light burgundy; low spreading shrub <1 m high.
                       Back to 1
subsp. filipendula

APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
  Privacy | Copyright | Disclaimer | About PlantNET | Cite PlantNET