Family Index

Scientific Name

Tetratheca gunnii

Family Name

TREMANDRACEAE

Common Name

Serpentine Black-eyed Susan

Status

Endangered

Height

Flowers

Petals pale lilac to deep pink , less than 5mm. *( See Gen.notes)

Fruit

Capsule

Form

Undershrubwith slender spreading branches. Leaves alternate, usually linear, margins revolute.

Municipalities

Central Highlands; West Tamar

Communities

Restricted to serpentine outcrops

Habitat Notes

Tas. endemic. Restricted to serpentine outcrops at the Dazzler Range near Beaconsfield.

Site Tolerance

Dry; Moist; Rocky

Frost Tolerance

Soil Tolerance

Loam; Phosphorous intolerant; Poor; Well-drained

General Notes

Susceptible to Phytophthora cinnamomi. the anther tube is the main feature distinguishing T. gunnii from other special of Tetratheca. the tube terminates at the widest point and is shorter than that of other species. Suitable below powerlines.

Propagation Details

Propagation Calendar

Flowering Months

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Seed Collecting Months

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Sowing Months

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Cutting Months

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Seed Information

Seed Collection

Capsule is compressed with 2 or 3 sections and sparse cover of gland-tipped hairs.seed released immediately on maturity. collect capsule before maturing & allow to dry in warm place to open. sieve to clean

Seed Treatment Method

Seed Storage Life

Viable Seeds Per Gram

Seed Treatment Notes

Difficult to grow from seed. Inoculation of seed raising media with soil from around parent plants will assist with germination. Seed set is low despite abundant flowers.

Germination Time

Suitable for Direct Seeding

Cuttings

Expected Time to Take Root

Expected Time to Plant Out

Propagation by Division N.B. Transplant only from nearby to avoid disease.

Cutting Notes