WorldFloraDB - Grevillea pteridifolia

Characteristics

Shrub or tree 2-14 m high, or rarely a prostrate shrub. Leaves 10-45 cm long, usually pinnatisect (rarely a few leaves bisect or entire and linear) with (3-) 13-29 ascending primary lobes, occasionally the lower several pairs again 2-5-sect; ultimate lobes linear or very narrowly ovate, (5-) 15-25 cm long, 1-4 (-10) mm wide, not pungent; margins shortly refracted to angularly revolute; lower surface usually partly exposed, subsericeous with straight hairs. Unit conflorescence erect, secund, acropetal; floral rachis (25-) 80-220 mm long. Flower colour: perianth grey-green to silvery outside, dull to bright orange-yellow or reddish inside; style bright orange or yellow-orange. Perianth tomentose to villous outside. Pistil 23-36 mm long; style glabrous, with a slight dorsal hump below style-end. Follicle 14-21 mm long, villous with biramous hairs dominant and smaller erect simple glandular hairs scattered through.

More

A slender tree. It grows 5-8 m high. It spreads 3-7 m wide. The leaves are silvery. The whole leaf is 15-43 cm long and it is divided into narrow lobes. These can be 7-30 cm long by 0.5 cm wide. They are fine. The flowers are bright orange or red. The style sticks out. They are 1.5-3 cm long and are arranged along a long stalk 10-20 cm long. These are produced near the ends of branches. The fruit is a somewhat woody follicle. It is 1.5-2 cm long and 1 cm wide. They occur in dense clusters and contain 2 brown seeds.

Life form	perennial
Growth form	tree
Growth support	free-standing
Foliage retention	evergreen
Sexuality	-
Pollination	-
Spread	-
Mature width (meter)	3.0 - 7.0
Mature height (meter)	5.0 - 10.0
Root system	-
Rooting depth (meter)	-
Root diameter (meter)	-
Flower color	-
Blooming months	-
Fruit color	-
Fruiting months	-
Nitrogen fixer	-
Photosynthetic pathway	c3

Environment

Grows in a wide range of habitats including eucalypt woodland, heath, and openings in sub-rainforest scrub; often in moister sites such as floodplains, near swamps or creeks but also on ridges and slopes; soils usually sandy or occasionally clay-loams.

More

It is a tropical plant. Plants can grow on a wide range of soils. It can stand occasionally water-logging. It grows naturally in open forests often on sandy soils. It is damaged by frost. It cannot stand wet winters. It suits hardiness zones 9-12.

Found in a wide range of habitats including eucalypt woodland, heath, and openings in sub-rainforest scrub; often in moister sites such as floodplains, near swamps or creeks but also on ridges and slopes.

Light	-
Soil humidity	-
Soil texture	-
Soil acidity	-
Soil nutriment	-
Hardiness (USDA)

Usage

The nectar is sucked from the flowers or shaken into water and drunk. The leaves have also been used to add flavouring when cooking emus.

Uses	animal food environmental use fuel material wood
Edible	flowers leaves nectars seeds
Therapeutic use	-
Human toxicity	-
Animal toxicity	-

Cultivation

Plants can be grown from seed or from tip cuttings. The seed coat needs to be peeled off.

Mode	seedlings
Germination duration (days)	20 - 25
Germination temperacture (C°)	23 - 26
Germination luminosity	light
Germination treatment	soaking
Minimum temperature (C°)	-
Optimum temperature (C°)	-
Size	-
Vigor	-
Productivity	-