Grevillea obtusiflora subsp. obtusiflora and subsp. fecunda Recovery Plan

NSW National Parks and Wildlife Service, September 2001
ISBN 0 731 36281 0

4 Description

Grevillea obtusiflora subsp. obtusiflora

G. obtusiflora subsp. obtusiflora is a red-flowering shrub that grows in open low understorey of eucalypt forest and regenerates from root suckers. Fruits, seeds and seedlings have not been recorded. G. obtusiflora subsp. obtusiflora flowers within the period of July to October.

G. obtusiflora subsp. obtusiflora is described by Makinson (1997) as:

A low, multi-stemmed shrub, 0.2-0.4 m in height; leaves narrowly obtuse-elliptic to oblong, 2-5 cm long, 1.5-5 mm wide; margin shortly recurved or revolute; upper surface openly and moderately granulate; lower surface exposed on most leaves, densely subsericeous (ground tissue completely obscured) or sometimes open-villous; flowers have a pink to pinkish red perianth with cream limb. The style is red with biramous hairs and sometimes also minute erect simple hairs ventrally. The perianth is 2.5-3.0 mm across from dorsal edge to ventral edge. The pistil is 18-23 mm in length. It is not known to set fruit or seed. (Figure 1)

Grevillea obtusiflora subsp. fecunda

Grevillea obtusiflora subsp. fecunda is a low, spreading to erect shrub growing up to one metre in height. It flowers profusely with red to pink flowers in spring.

Grevillea obtusiflora subsp. fecunda is described by Makinson (1997) as:

Low spreading to erect dense shrub 0.5-0.8 m in height. Leaves linear to very narrowly obovate, 15-40 mm long, 1.0-1.2 mm wide; margin smoothly revolute; upper surface densely granulose; lower surface usually enclosed, including midvein, sometimes narrowly exposed and then with an open appressed indumentum (ground-tissue visible between hairs). Flower colour: perianth deep pink to crimson, paling to pink or cream along dorsal side and with a cream limb, or occasionally cream with a weak red along dorsal side, or rarely yellow; style deep pink to red (rarely yellow) with white hairs; style end sometimes yellowish. The perianth is 1.5-2 mm across. The pistil is 14-18 mm in length; style with biramous hairs and sometimes also minute erect simple hairs ventrally (Figure 2). Follicles setting freely.

Grevillea obtusiflora subsp. obtusiflora
Figure 1 Grevillea obtusiflora subsp. obtusiflora
Grevillea obtusiflora subsp. fecunda
Figure 2 Grevillea obtusiflora subsp. fecunda